_id
stringlengths 2
7
| title
stringlengths 1
88
| partition
stringclasses 3
values | text
stringlengths 75
19.8k
| language
stringclasses 1
value | meta_information
dict |
|---|---|---|---|---|---|
q276400
|
_transform_result
|
test
|
def _transform_result(typ, result):
"""Convert the result back into the input type.
"""
if issubclass(typ, bytes):
return tostring(result, encoding='utf-8')
elif issubclass(typ, unicode):
return tostring(result, encoding='unicode')
else:
return result
|
python
|
{
"resource": ""
}
|
q276401
|
html_to_xhtml
|
test
|
def html_to_xhtml(html):
"""Convert all tags in an HTML tree to XHTML by moving them to the
XHTML namespace.
"""
try:
html = html.getroot()
except AttributeError:
pass
prefix = "{%s}" % XHTML_NAMESPACE
for el in html.iter(etree.Element):
tag = el.tag
if tag[0] != '{':
el.tag = prefix + tag
|
python
|
{
"resource": ""
}
|
q276402
|
xhtml_to_html
|
test
|
def xhtml_to_html(xhtml):
"""Convert all tags in an XHTML tree to HTML by removing their
XHTML namespace.
"""
try:
xhtml = xhtml.getroot()
except AttributeError:
pass
prefix = "{%s}" % XHTML_NAMESPACE
prefix_len = len(prefix)
for el in xhtml.iter(prefix + "*"):
el.tag = el.tag[prefix_len:]
|
python
|
{
"resource": ""
}
|
q276403
|
tostring
|
test
|
def tostring(doc, pretty_print=False, include_meta_content_type=False,
encoding=None, method="html", with_tail=True, doctype=None):
"""Return an HTML string representation of the document.
Note: if include_meta_content_type is true this will create a
``<meta http-equiv="Content-Type" ...>`` tag in the head;
regardless of the value of include_meta_content_type any existing
``<meta http-equiv="Content-Type" ...>`` tag will be removed
The ``encoding`` argument controls the output encoding (defauts to
ASCII, with &#...; character references for any characters outside
of ASCII). Note that you can pass the name ``'unicode'`` as
``encoding`` argument to serialise to a Unicode string.
The ``method`` argument defines the output method. It defaults to
'html', but can also be 'xml' for xhtml output, or 'text' to
serialise to plain text without markup.
To leave out the tail text of the top-level element that is being
serialised, pass ``with_tail=False``.
The ``doctype`` option allows passing in a plain string that will
be serialised before the XML tree. Note that passing in non
well-formed content here will make the XML output non well-formed.
Also, an existing doctype in the document tree will not be removed
when serialising an ElementTree instance.
Example::
>>> from lxml import html
>>> root = html.fragment_fromstring('<p>Hello<br>world!</p>')
>>> html.tostring(root)
b'<p>Hello<br>world!</p>'
>>> html.tostring(root, method='html')
b'<p>Hello<br>world!</p>'
>>> html.tostring(root, method='xml')
b'<p>Hello<br/>world!</p>'
>>> html.tostring(root, method='text')
b'Helloworld!'
>>> html.tostring(root, method='text', encoding='unicode')
u'Helloworld!'
>>> root = html.fragment_fromstring('<div><p>Hello<br>world!</p>TAIL</div>')
>>> html.tostring(root[0], method='text', encoding='unicode')
u'Helloworld!TAIL'
>>> html.tostring(root[0], method='text', encoding='unicode', with_tail=False)
u'Helloworld!'
>>> doc = html.document_fromstring('<p>Hello<br>world!</p>')
>>> html.tostring(doc, method='html', encoding='unicode')
u'<html><body><p>Hello<br>world!</p></body></html>'
>>> print(html.tostring(doc, method='html', encoding='unicode',
... doctype='<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"'
... ' "http://www.w3.org/TR/html4/strict.dtd">'))
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html><body><p>Hello<br>world!</p></body></html>
"""
html = etree.tostring(doc, method=method, pretty_print=pretty_print,
encoding=encoding, with_tail=with_tail,
doctype=doctype)
if method == 'html' and not include_meta_content_type:
if isinstance(html, str):
html = __str_replace_meta_content_type('', html)
else:
html = __bytes_replace_meta_content_type(bytes(), html)
return html
|
python
|
{
"resource": ""
}
|
q276404
|
open_in_browser
|
test
|
def open_in_browser(doc, encoding=None):
"""
Open the HTML document in a web browser, saving it to a temporary
file to open it. Note that this does not delete the file after
use. This is mainly meant for debugging.
"""
import os
import webbrowser
import tempfile
if not isinstance(doc, etree._ElementTree):
doc = etree.ElementTree(doc)
handle, fn = tempfile.mkstemp(suffix='.html')
f = os.fdopen(handle, 'wb')
try:
doc.write(f, method="html", encoding=encoding or doc.docinfo.encoding or "UTF-8")
finally:
# we leak the file itself here, but we should at least close it
f.close()
url = 'file://' + fn.replace(os.path.sep, '/')
print(url)
webbrowser.open(url)
|
python
|
{
"resource": ""
}
|
q276405
|
HtmlMixin.drop_tree
|
test
|
def drop_tree(self):
"""
Removes this element from the tree, including its children and
text. The tail text is joined to the previous element or
parent.
"""
parent = self.getparent()
assert parent is not None
if self.tail:
previous = self.getprevious()
if previous is None:
parent.text = (parent.text or '') + self.tail
else:
previous.tail = (previous.tail or '') + self.tail
parent.remove(self)
|
python
|
{
"resource": ""
}
|
q276406
|
HtmlMixin.drop_tag
|
test
|
def drop_tag(self):
"""
Remove the tag, but not its children or text. The children and text
are merged into the parent.
Example::
>>> h = fragment_fromstring('<div>Hello <b>World!</b></div>')
>>> h.find('.//b').drop_tag()
>>> print(tostring(h, encoding='unicode'))
<div>Hello World!</div>
"""
parent = self.getparent()
assert parent is not None
previous = self.getprevious()
if self.text and isinstance(self.tag, basestring):
# not a Comment, etc.
if previous is None:
parent.text = (parent.text or '') + self.text
else:
previous.tail = (previous.tail or '') + self.text
if self.tail:
if len(self):
last = self[-1]
last.tail = (last.tail or '') + self.tail
elif previous is None:
parent.text = (parent.text or '') + self.tail
else:
previous.tail = (previous.tail or '') + self.tail
index = parent.index(self)
parent[index:index+1] = self[:]
|
python
|
{
"resource": ""
}
|
q276407
|
HtmlMixin.get_element_by_id
|
test
|
def get_element_by_id(self, id, *default):
"""
Get the first element in a document with the given id. If none is
found, return the default argument if provided or raise KeyError
otherwise.
Note that there can be more than one element with the same id,
and this isn't uncommon in HTML documents found in the wild.
Browsers return only the first match, and this function does
the same.
"""
try:
# FIXME: should this check for multiple matches?
# browsers just return the first one
return _id_xpath(self, id=id)[0]
except IndexError:
if default:
return default[0]
else:
raise KeyError(id)
|
python
|
{
"resource": ""
}
|
q276408
|
HtmlMixin.cssselect
|
test
|
def cssselect(self, expr, translator='html'):
"""
Run the CSS expression on this element and its children,
returning a list of the results.
Equivalent to lxml.cssselect.CSSSelect(expr, translator='html')(self)
-- note that pre-compiling the expression can provide a substantial
speedup.
"""
# Do the import here to make the dependency optional.
from lxml.cssselect import CSSSelector
return CSSSelector(expr, translator=translator)(self)
|
python
|
{
"resource": ""
}
|
q276409
|
loghandler_members
|
test
|
def loghandler_members():
"""iterate through the attributes of every logger's handler
this is used to switch out stderr and stdout in tests when buffer is True
:returns: generator of tuples, each tuple has (name, handler, member_name, member_val)
"""
Members = namedtuple("Members", ["name", "handler", "member_name", "member"])
log_manager = logging.Logger.manager
loggers = []
ignore = set([modname()])
if log_manager.root:
loggers = list(log_manager.loggerDict.items())
loggers.append(("root", log_manager.root))
for logger_name, logger in loggers:
if logger_name in ignore: continue
for handler in getattr(logger, "handlers", []):
members = inspect.getmembers(handler)
for member_name, member in members:
yield Members(logger_name, handler, member_name, member)
|
python
|
{
"resource": ""
}
|
q276410
|
get_counts
|
test
|
def get_counts():
"""return test counts that are set via pyt environment variables when pyt
runs the test
:returns: dict, 3 keys (classes, tests, modules) and how many tests of each
were found by pyt
"""
counts = {}
ks = [
('PYT_TEST_CLASS_COUNT', "classes"),
('PYT_TEST_COUNT', "tests"),
('PYT_TEST_MODULE_COUNT', "modules"),
]
for ek, cn in ks:
counts[cn] = int(os.environ.get(ek, 0))
return counts
|
python
|
{
"resource": ""
}
|
q276411
|
is_single_class
|
test
|
def is_single_class():
"""Returns True if only a single class is being run or some tests within a single class"""
ret = False
counts = get_counts()
if counts["classes"] < 1 and counts["modules"] < 1:
ret = counts["tests"] > 0
else:
ret = counts["classes"] <= 1 and counts["modules"] <= 1
return ret
|
python
|
{
"resource": ""
}
|
q276412
|
is_single_module
|
test
|
def is_single_module():
"""Returns True if only a module is being run"""
ret = False
counts = get_counts()
if counts["modules"] == 1:
ret = True
elif counts["modules"] < 1:
ret = is_single_class()
return ret
|
python
|
{
"resource": ""
}
|
q276413
|
validate_params
|
test
|
def validate_params(request):
"""Validate request params."""
if 'params' in request:
correct_params = isinstance(request['params'], (list, dict))
error = 'Incorrect parameter values'
assert correct_params, error
|
python
|
{
"resource": ""
}
|
q276414
|
validate_id
|
test
|
def validate_id(request):
"""Validate request id."""
if 'id' in request:
correct_id = isinstance(
request['id'],
(string_types, int, None),
)
error = 'Incorrect identifier'
assert correct_id, error
|
python
|
{
"resource": ""
}
|
q276415
|
filesys_decode
|
test
|
def filesys_decode(path):
"""
Ensure that the given path is decoded,
NONE when no expected encoding works
"""
fs_enc = sys.getfilesystemencoding()
if isinstance(path, decoded_string):
return path
for enc in (fs_enc, "utf-8"):
try:
return path.decode(enc)
except UnicodeDecodeError:
continue
|
python
|
{
"resource": ""
}
|
q276416
|
_escape_argspec
|
test
|
def _escape_argspec(obj, iterable, escape):
"""Helper for various string-wrapped functions."""
for key, value in iterable:
if hasattr(value, '__html__') or isinstance(value, string_types):
obj[key] = escape(value)
return obj
|
python
|
{
"resource": ""
}
|
q276417
|
codecName
|
test
|
def codecName(encoding):
"""Return the python codec name corresponding to an encoding or None if the
string doesn't correspond to a valid encoding."""
if isinstance(encoding, bytes):
try:
encoding = encoding.decode("ascii")
except UnicodeDecodeError:
return None
if encoding:
canonicalName = ascii_punctuation_re.sub("", encoding).lower()
return encodings.get(canonicalName, None)
else:
return None
|
python
|
{
"resource": ""
}
|
q276418
|
HTMLBinaryInputStream.detectBOM
|
test
|
def detectBOM(self):
"""Attempts to detect at BOM at the start of the stream. If
an encoding can be determined from the BOM return the name of the
encoding otherwise return None"""
bomDict = {
codecs.BOM_UTF8: 'utf-8',
codecs.BOM_UTF16_LE: 'utf-16-le', codecs.BOM_UTF16_BE: 'utf-16-be',
codecs.BOM_UTF32_LE: 'utf-32-le', codecs.BOM_UTF32_BE: 'utf-32-be'
}
# Go to beginning of file and read in 4 bytes
string = self.rawStream.read(4)
assert isinstance(string, bytes)
# Try detecting the BOM using bytes from the string
encoding = bomDict.get(string[:3]) # UTF-8
seek = 3
if not encoding:
# Need to detect UTF-32 before UTF-16
encoding = bomDict.get(string) # UTF-32
seek = 4
if not encoding:
encoding = bomDict.get(string[:2]) # UTF-16
seek = 2
# Set the read position past the BOM if one was found, otherwise
# set it to the start of the stream
self.rawStream.seek(encoding and seek or 0)
return encoding
|
python
|
{
"resource": ""
}
|
q276419
|
ProxyFix.get_remote_addr
|
test
|
def get_remote_addr(self, forwarded_for):
"""Selects the new remote addr from the given list of ips in
X-Forwarded-For. By default it picks the one that the `num_proxies`
proxy server provides. Before 0.9 it would always pick the first.
.. versionadded:: 0.8
"""
if len(forwarded_for) >= self.num_proxies:
return forwarded_for[-1 * self.num_proxies]
|
python
|
{
"resource": ""
}
|
q276420
|
amount_converter
|
test
|
def amount_converter(obj):
"""Converts amount value from several types into Decimal."""
if isinstance(obj, Decimal):
return obj
elif isinstance(obj, (str, int, float)):
return Decimal(str(obj))
else:
raise ValueError('do not know how to convert: {}'.format(type(obj)))
|
python
|
{
"resource": ""
}
|
q276421
|
fromstring
|
test
|
def fromstring(data, beautifulsoup=None, makeelement=None, **bsargs):
"""Parse a string of HTML data into an Element tree using the
BeautifulSoup parser.
Returns the root ``<html>`` Element of the tree.
You can pass a different BeautifulSoup parser through the
`beautifulsoup` keyword, and a diffent Element factory function
through the `makeelement` keyword. By default, the standard
``BeautifulSoup`` class and the default factory of `lxml.html` are
used.
"""
return _parse(data, beautifulsoup, makeelement, **bsargs)
|
python
|
{
"resource": ""
}
|
q276422
|
parse
|
test
|
def parse(file, beautifulsoup=None, makeelement=None, **bsargs):
"""Parse a file into an ElemenTree using the BeautifulSoup parser.
You can pass a different BeautifulSoup parser through the
`beautifulsoup` keyword, and a diffent Element factory function
through the `makeelement` keyword. By default, the standard
``BeautifulSoup`` class and the default factory of `lxml.html` are
used.
"""
if not hasattr(file, 'read'):
file = open(file)
root = _parse(file, beautifulsoup, makeelement, **bsargs)
return etree.ElementTree(root)
|
python
|
{
"resource": ""
}
|
q276423
|
convert_tree
|
test
|
def convert_tree(beautiful_soup_tree, makeelement=None):
"""Convert a BeautifulSoup tree to a list of Element trees.
Returns a list instead of a single root Element to support
HTML-like soup with more than one root element.
You can pass a different Element factory through the `makeelement`
keyword.
"""
if makeelement is None:
makeelement = html.html_parser.makeelement
root = _convert_tree(beautiful_soup_tree, makeelement)
children = root.getchildren()
for child in children:
root.remove(child)
return children
|
python
|
{
"resource": ""
}
|
q276424
|
get_current_traceback
|
test
|
def get_current_traceback(ignore_system_exceptions=False,
show_hidden_frames=False, skip=0):
"""Get the current exception info as `Traceback` object. Per default
calling this method will reraise system exceptions such as generator exit,
system exit or others. This behavior can be disabled by passing `False`
to the function as first parameter.
"""
exc_type, exc_value, tb = sys.exc_info()
if ignore_system_exceptions and exc_type in system_exceptions:
raise
for x in range_type(skip):
if tb.tb_next is None:
break
tb = tb.tb_next
tb = Traceback(exc_type, exc_value, tb)
if not show_hidden_frames:
tb.filter_hidden_frames()
return tb
|
python
|
{
"resource": ""
}
|
q276425
|
Traceback.exception
|
test
|
def exception(self):
"""String representation of the exception."""
buf = traceback.format_exception_only(self.exc_type, self.exc_value)
rv = ''.join(buf).strip()
return rv.decode('utf-8', 'replace') if PY2 else rv
|
python
|
{
"resource": ""
}
|
q276426
|
Traceback.render_summary
|
test
|
def render_summary(self, include_title=True):
"""Render the traceback for the interactive console."""
title = ''
frames = []
classes = ['traceback']
if not self.frames:
classes.append('noframe-traceback')
if include_title:
if self.is_syntax_error:
title = u'Syntax Error'
else:
title = u'Traceback <em>(most recent call last)</em>:'
for frame in self.frames:
frames.append(u'<li%s>%s' % (
frame.info and u' title="%s"' % escape(frame.info) or u'',
frame.render()
))
if self.is_syntax_error:
description_wrapper = u'<pre class=syntaxerror>%s</pre>'
else:
description_wrapper = u'<blockquote>%s</blockquote>'
return SUMMARY_HTML % {
'classes': u' '.join(classes),
'title': title and u'<h3>%s</h3>' % title or u'',
'frames': u'\n'.join(frames),
'description': description_wrapper % escape(self.exception)
}
|
python
|
{
"resource": ""
}
|
q276427
|
Traceback.generate_plaintext_traceback
|
test
|
def generate_plaintext_traceback(self):
"""Like the plaintext attribute but returns a generator"""
yield u'Traceback (most recent call last):'
for frame in self.frames:
yield u' File "%s", line %s, in %s' % (
frame.filename,
frame.lineno,
frame.function_name
)
yield u' ' + frame.current_line.strip()
yield self.exception
|
python
|
{
"resource": ""
}
|
q276428
|
Frame.get_annotated_lines
|
test
|
def get_annotated_lines(self):
"""Helper function that returns lines with extra information."""
lines = [Line(idx + 1, x) for idx, x in enumerate(self.sourcelines)]
# find function definition and mark lines
if hasattr(self.code, 'co_firstlineno'):
lineno = self.code.co_firstlineno - 1
while lineno > 0:
if _funcdef_re.match(lines[lineno].code):
break
lineno -= 1
try:
offset = len(inspect.getblock([x.code + '\n' for x
in lines[lineno:]]))
except TokenError:
offset = 0
for line in lines[lineno:lineno + offset]:
line.in_frame = True
# mark current line
try:
lines[self.lineno - 1].current = True
except IndexError:
pass
return lines
|
python
|
{
"resource": ""
}
|
q276429
|
Frame.render_source
|
test
|
def render_source(self):
"""Render the sourcecode."""
return SOURCE_TABLE_HTML % u'\n'.join(line.render() for line in
self.get_annotated_lines())
|
python
|
{
"resource": ""
}
|
q276430
|
egg_info_matches
|
test
|
def egg_info_matches(
egg_info, search_name, link,
_egg_info_re=re.compile(r'([a-z0-9_.]+)-([a-z0-9_.!+-]+)', re.I)):
"""Pull the version part out of a string.
:param egg_info: The string to parse. E.g. foo-2.1
:param search_name: The name of the package this belongs to. None to
infer the name. Note that this cannot unambiguously parse strings
like foo-2-2 which might be foo, 2-2 or foo-2, 2.
:param link: The link the string came from, for logging on failure.
"""
match = _egg_info_re.search(egg_info)
if not match:
logger.debug('Could not parse version from link: %s', link)
return None
if search_name is None:
full_match = match.group(0)
return full_match[full_match.index('-'):]
name = match.group(0).lower()
# To match the "safe" name that pkg_resources creates:
name = name.replace('_', '-')
# project name and version must be separated by a dash
look_for = search_name.lower() + "-"
if name.startswith(look_for):
return match.group(0)[len(look_for):]
else:
return None
|
python
|
{
"resource": ""
}
|
q276431
|
PackageFinder._get_index_urls_locations
|
test
|
def _get_index_urls_locations(self, project_name):
"""Returns the locations found via self.index_urls
Checks the url_name on the main (first in the list) index and
use this url_name to produce all locations
"""
def mkurl_pypi_url(url):
loc = posixpath.join(url, project_url_name)
# For maximum compatibility with easy_install, ensure the path
# ends in a trailing slash. Although this isn't in the spec
# (and PyPI can handle it without the slash) some other index
# implementations might break if they relied on easy_install's
# behavior.
if not loc.endswith('/'):
loc = loc + '/'
return loc
project_url_name = urllib_parse.quote(project_name.lower())
if self.index_urls:
# Check that we have the url_name correctly spelled:
# Only check main index if index URL is given
main_index_url = Link(
mkurl_pypi_url(self.index_urls[0]),
trusted=True,
)
page = self._get_page(main_index_url)
if page is None and PyPI.netloc not in str(main_index_url):
warnings.warn(
"Failed to find %r at %s. It is suggested to upgrade "
"your index to support normalized names as the name in "
"/simple/{name}." % (project_name, main_index_url),
RemovedInPip8Warning,
)
project_url_name = self._find_url_name(
Link(self.index_urls[0], trusted=True),
project_url_name,
) or project_url_name
if project_url_name is not None:
return [mkurl_pypi_url(url) for url in self.index_urls]
return []
|
python
|
{
"resource": ""
}
|
q276432
|
PackageFinder._find_all_versions
|
test
|
def _find_all_versions(self, project_name):
"""Find all available versions for project_name
This checks index_urls, find_links and dependency_links
All versions found are returned
See _link_package_versions for details on which files are accepted
"""
index_locations = self._get_index_urls_locations(project_name)
index_file_loc, index_url_loc = self._sort_locations(index_locations)
fl_file_loc, fl_url_loc = self._sort_locations(
self.find_links, expand_dir=True)
dep_file_loc, dep_url_loc = self._sort_locations(self.dependency_links)
file_locations = (
Link(url) for url in itertools.chain(
index_file_loc, fl_file_loc, dep_file_loc)
)
# We trust every url that the user has given us whether it was given
# via --index-url or --find-links
# We explicitly do not trust links that came from dependency_links
# We want to filter out any thing which does not have a secure origin.
url_locations = [
link for link in itertools.chain(
(Link(url, trusted=True) for url in index_url_loc),
(Link(url, trusted=True) for url in fl_url_loc),
(Link(url) for url in dep_url_loc),
)
if self._validate_secure_origin(logger, link)
]
logger.debug('%d location(s) to search for versions of %s:',
len(url_locations), project_name)
for location in url_locations:
logger.debug('* %s', location)
canonical_name = pkg_resources.safe_name(project_name).lower()
formats = fmt_ctl_formats(self.format_control, canonical_name)
search = Search(project_name.lower(), canonical_name, formats)
find_links_versions = self._package_versions(
# We trust every directly linked archive in find_links
(Link(url, '-f', trusted=True) for url in self.find_links),
search
)
page_versions = []
for page in self._get_pages(url_locations, project_name):
logger.debug('Analyzing links from page %s', page.url)
with indent_log():
page_versions.extend(
self._package_versions(page.links, search)
)
dependency_versions = self._package_versions(
(Link(url) for url in self.dependency_links), search
)
if dependency_versions:
logger.debug(
'dependency_links found: %s',
', '.join([
version.location.url for version in dependency_versions
])
)
file_versions = self._package_versions(file_locations, search)
if file_versions:
file_versions.sort(reverse=True)
logger.debug(
'Local files found: %s',
', '.join([
url_to_path(candidate.location.url)
for candidate in file_versions
])
)
# This is an intentional priority ordering
return (
file_versions + find_links_versions + page_versions +
dependency_versions
)
|
python
|
{
"resource": ""
}
|
q276433
|
PackageFinder.find_requirement
|
test
|
def find_requirement(self, req, upgrade):
"""Try to find an InstallationCandidate for req
Expects req, an InstallRequirement and upgrade, a boolean
Returns an InstallationCandidate or None
May raise DistributionNotFound or BestVersionAlreadyInstalled
"""
all_versions = self._find_all_versions(req.name)
# Filter out anything which doesn't match our specifier
_versions = set(
req.specifier.filter(
[x.version for x in all_versions],
prereleases=(
self.allow_all_prereleases
if self.allow_all_prereleases else None
),
)
)
applicable_versions = [
x for x in all_versions if x.version in _versions
]
if req.satisfied_by is not None:
# Finally add our existing versions to the front of our versions.
applicable_versions.insert(
0,
InstallationCandidate(
req.name,
req.satisfied_by.version,
INSTALLED_VERSION,
)
)
existing_applicable = True
else:
existing_applicable = False
applicable_versions = self._sort_versions(applicable_versions)
if not upgrade and existing_applicable:
if applicable_versions[0].location is INSTALLED_VERSION:
logger.debug(
'Existing installed version (%s) is most up-to-date and '
'satisfies requirement',
req.satisfied_by.version,
)
else:
logger.debug(
'Existing installed version (%s) satisfies requirement '
'(most up-to-date version is %s)',
req.satisfied_by.version,
applicable_versions[0][2],
)
return None
if not applicable_versions:
logger.critical(
'Could not find a version that satisfies the requirement %s '
'(from versions: %s)',
req,
', '.join(
sorted(
set(str(i.version) for i in all_versions),
key=parse_version,
)
)
)
if self.need_warn_external:
logger.warning(
"Some externally hosted files were ignored as access to "
"them may be unreliable (use --allow-external %s to "
"allow).",
req.name,
)
if self.need_warn_unverified:
logger.warning(
"Some insecure and unverifiable files were ignored"
" (use --allow-unverified %s to allow).",
req.name,
)
raise DistributionNotFound(
'No matching distribution found for %s' % req
)
if applicable_versions[0].location is INSTALLED_VERSION:
# We have an existing version, and its the best version
logger.debug(
'Installed version (%s) is most up-to-date (past versions: '
'%s)',
req.satisfied_by.version,
', '.join(str(i.version) for i in applicable_versions[1:]) or
"none",
)
raise BestVersionAlreadyInstalled
if len(applicable_versions) > 1:
logger.debug(
'Using version %s (newest of versions: %s)',
applicable_versions[0].version,
', '.join(str(i.version) for i in applicable_versions)
)
selected_version = applicable_versions[0].location
if (selected_version.verifiable is not None and not
selected_version.verifiable):
logger.warning(
"%s is potentially insecure and unverifiable.", req.name,
)
return selected_version
|
python
|
{
"resource": ""
}
|
q276434
|
PackageFinder._sort_links
|
test
|
def _sort_links(self, links):
"""
Returns elements of links in order, non-egg links first, egg links
second, while eliminating duplicates
"""
eggs, no_eggs = [], []
seen = set()
for link in links:
if link not in seen:
seen.add(link)
if link.egg_fragment:
eggs.append(link)
else:
no_eggs.append(link)
return no_eggs + eggs
|
python
|
{
"resource": ""
}
|
q276435
|
HTMLPage._get_content_type
|
test
|
def _get_content_type(url, session):
"""Get the Content-Type of the given url, using a HEAD request"""
scheme, netloc, path, query, fragment = urllib_parse.urlsplit(url)
if scheme not in ('http', 'https'):
# FIXME: some warning or something?
# assertion error?
return ''
resp = session.head(url, allow_redirects=True)
resp.raise_for_status()
return resp.headers.get("Content-Type", "")
|
python
|
{
"resource": ""
}
|
q276436
|
HTMLPage.links
|
test
|
def links(self):
"""Yields all links in the page"""
for anchor in self.parsed.findall(".//a"):
if anchor.get("href"):
href = anchor.get("href")
url = self.clean_link(
urllib_parse.urljoin(self.base_url, href)
)
# Determine if this link is internal. If that distinction
# doesn't make sense in this context, then we don't make
# any distinction.
internal = None
if self.api_version and self.api_version >= 2:
# Only api_versions >= 2 have a distinction between
# external and internal links
internal = bool(
anchor.get("rel") and
"internal" in anchor.get("rel").split()
)
yield Link(url, self, internal=internal)
|
python
|
{
"resource": ""
}
|
q276437
|
Link.verifiable
|
test
|
def verifiable(self):
"""
Returns True if this link can be verified after download, False if it
cannot, and None if we cannot determine.
"""
trusted = self.trusted or getattr(self.comes_from, "trusted", None)
if trusted is not None and trusted:
# This link came from a trusted source. It *may* be verifiable but
# first we need to see if this page is operating under the new
# API version.
try:
api_version = getattr(self.comes_from, "api_version", None)
api_version = int(api_version)
except (ValueError, TypeError):
api_version = None
if api_version is None or api_version <= 1:
# This link is either trusted, or it came from a trusted,
# however it is not operating under the API version 2 so
# we can't make any claims about if it's safe or not
return
if self.hash:
# This link came from a trusted source and it has a hash, so we
# can consider it safe.
return True
else:
# This link came from a trusted source, using the new API
# version, and it does not have a hash. It is NOT verifiable
return False
elif trusted is not None:
# This link came from an untrusted source and we cannot trust it
return False
|
python
|
{
"resource": ""
}
|
q276438
|
build_py.find_data_files
|
test
|
def find_data_files(self, package, src_dir):
"""Return filenames for package's data files in 'src_dir'"""
globs = (self.package_data.get('', [])
+ self.package_data.get(package, []))
files = self.manifest_files.get(package, [])[:]
for pattern in globs:
# Each pattern has to be converted to a platform-specific path
files.extend(glob(os.path.join(src_dir, convert_path(pattern))))
return self.exclude_data_files(package, src_dir, files)
|
python
|
{
"resource": ""
}
|
q276439
|
build_py.exclude_data_files
|
test
|
def exclude_data_files(self, package, src_dir, files):
"""Filter filenames for package's data files in 'src_dir'"""
globs = (self.exclude_package_data.get('', [])
+ self.exclude_package_data.get(package, []))
bad = []
for pattern in globs:
bad.extend(
fnmatch.filter(
files, os.path.join(src_dir, convert_path(pattern))
)
)
bad = dict.fromkeys(bad)
seen = {}
return [
f for f in files if f not in bad
and f not in seen and seen.setdefault(f, 1) # ditch dupes
]
|
python
|
{
"resource": ""
}
|
q276440
|
parse_requirements
|
test
|
def parse_requirements(filename, finder=None, comes_from=None, options=None,
session=None, wheel_cache=None):
"""
Parse a requirements file and yield InstallRequirement instances.
:param filename: Path or url of requirements file.
:param finder: Instance of pip.index.PackageFinder.
:param comes_from: Origin description of requirements.
:param options: Global options.
:param session: Instance of pip.download.PipSession.
:param wheel_cache: Instance of pip.wheel.WheelCache
"""
if session is None:
raise TypeError(
"parse_requirements() missing 1 required keyword argument: "
"'session'"
)
_, content = get_file_content(
filename, comes_from=comes_from, session=session
)
lines = content.splitlines()
lines = ignore_comments(lines)
lines = join_lines(lines)
lines = skip_regex(lines, options)
for line_number, line in enumerate(lines, 1):
req_iter = process_line(line, filename, line_number, finder,
comes_from, options, session, wheel_cache)
for req in req_iter:
yield req
|
python
|
{
"resource": ""
}
|
q276441
|
join_lines
|
test
|
def join_lines(iterator):
"""
Joins a line ending in '\' with the previous line.
"""
lines = []
for line in iterator:
if not line.endswith('\\'):
if lines:
lines.append(line)
yield ''.join(lines)
lines = []
else:
yield line
else:
lines.append(line.strip('\\'))
|
python
|
{
"resource": ""
}
|
q276442
|
ignore_comments
|
test
|
def ignore_comments(iterator):
"""
Strips and filters empty or commented lines.
"""
for line in iterator:
line = COMMENT_RE.sub('', line)
line = line.strip()
if line:
yield line
|
python
|
{
"resource": ""
}
|
q276443
|
compile
|
test
|
def compile(marker):
"""Return compiled marker as a function accepting an environment dict."""
try:
return _cache[marker]
except KeyError:
pass
if not marker.strip():
def marker_fn(environment=None, override=None):
""""""
return True
else:
compiled_marker = compile_marker(parse_marker(marker))
def marker_fn(environment=None, override=None):
"""override updates environment"""
if override is None:
override = {}
if environment is None:
environment = default_environment()
environment.update(override)
return eval(compiled_marker, environment)
marker_fn.__doc__ = marker
_cache[marker] = marker_fn
return _cache[marker]
|
python
|
{
"resource": ""
}
|
q276444
|
ASTWhitelist.visit
|
test
|
def visit(self, node):
"""Ensure statement only contains allowed nodes."""
if not isinstance(node, self.ALLOWED):
raise SyntaxError('Not allowed in environment markers.\n%s\n%s' %
(self.statement,
(' ' * node.col_offset) + '^'))
return ast.NodeTransformer.visit(self, node)
|
python
|
{
"resource": ""
}
|
q276445
|
ASTWhitelist.visit_Attribute
|
test
|
def visit_Attribute(self, node):
"""Flatten one level of attribute access."""
new_node = ast.Name("%s.%s" % (node.value.id, node.attr), node.ctx)
return ast.copy_location(new_node, node)
|
python
|
{
"resource": ""
}
|
q276446
|
coerce
|
test
|
def coerce(value):
"""
coerce takes a value and attempts to convert it to a float,
or int.
If none of the conversions are successful, the original value is
returned.
>>> coerce('3')
3
>>> coerce('3.0')
3.0
>>> coerce('foo')
'foo'
>>> coerce({})
{}
>>> coerce('{}')
'{}'
"""
with contextlib2.suppress(Exception):
loaded = json.loads(value)
assert isinstance(loaded, numbers.Number)
return loaded
return value
|
python
|
{
"resource": ""
}
|
q276447
|
copy_current_request_context
|
test
|
def copy_current_request_context(f):
"""A helper function that decorates a function to retain the current
request context. This is useful when working with greenlets. The moment
the function is decorated a copy of the request context is created and
then pushed when the function is called.
Example::
import gevent
from flask import copy_current_request_context
@app.route('/')
def index():
@copy_current_request_context
def do_some_work():
# do some work here, it can access flask.request like you
# would otherwise in the view function.
...
gevent.spawn(do_some_work)
return 'Regular response'
.. versionadded:: 0.10
"""
top = _request_ctx_stack.top
if top is None:
raise RuntimeError('This decorator can only be used at local scopes '
'when a request context is on the stack. For instance within '
'view functions.')
reqctx = top.copy()
def wrapper(*args, **kwargs):
with reqctx:
return f(*args, **kwargs)
return update_wrapper(wrapper, f)
|
python
|
{
"resource": ""
}
|
q276448
|
AppContext.push
|
test
|
def push(self):
"""Binds the app context to the current context."""
self._refcnt += 1
_app_ctx_stack.push(self)
appcontext_pushed.send(self.app)
|
python
|
{
"resource": ""
}
|
q276449
|
AppContext.pop
|
test
|
def pop(self, exc=None):
"""Pops the app context."""
self._refcnt -= 1
if self._refcnt <= 0:
if exc is None:
exc = sys.exc_info()[1]
self.app.do_teardown_appcontext(exc)
rv = _app_ctx_stack.pop()
assert rv is self, 'Popped wrong app context. (%r instead of %r)' \
% (rv, self)
appcontext_popped.send(self.app)
|
python
|
{
"resource": ""
}
|
q276450
|
RequestContext.copy
|
test
|
def copy(self):
"""Creates a copy of this request context with the same request object.
This can be used to move a request context to a different greenlet.
Because the actual request object is the same this cannot be used to
move a request context to a different thread unless access to the
request object is locked.
.. versionadded:: 0.10
"""
return self.__class__(self.app,
environ=self.request.environ,
request=self.request
)
|
python
|
{
"resource": ""
}
|
q276451
|
RequestContext.match_request
|
test
|
def match_request(self):
"""Can be overridden by a subclass to hook into the matching
of the request.
"""
try:
url_rule, self.request.view_args = \
self.url_adapter.match(return_rule=True)
self.request.url_rule = url_rule
except HTTPException as e:
self.request.routing_exception = e
|
python
|
{
"resource": ""
}
|
q276452
|
RequestContext.push
|
test
|
def push(self):
"""Binds the request context to the current context."""
# If an exception occurs in debug mode or if context preservation is
# activated under exception situations exactly one context stays
# on the stack. The rationale is that you want to access that
# information under debug situations. However if someone forgets to
# pop that context again we want to make sure that on the next push
# it's invalidated, otherwise we run at risk that something leaks
# memory. This is usually only a problem in testsuite since this
# functionality is not active in production environments.
top = _request_ctx_stack.top
if top is not None and top.preserved:
top.pop(top._preserved_exc)
# Before we push the request context we have to ensure that there
# is an application context.
app_ctx = _app_ctx_stack.top
if app_ctx is None or app_ctx.app != self.app:
app_ctx = self.app.app_context()
app_ctx.push()
self._implicit_app_ctx_stack.append(app_ctx)
else:
self._implicit_app_ctx_stack.append(None)
_request_ctx_stack.push(self)
# Open the session at the moment that the request context is
# available. This allows a custom open_session method to use the
# request context (e.g. code that access database information
# stored on `g` instead of the appcontext).
self.session = self.app.open_session(self.request)
if self.session is None:
self.session = self.app.make_null_session()
|
python
|
{
"resource": ""
}
|
q276453
|
make_path_relative
|
test
|
def make_path_relative(path, rel_to):
"""
Make a filename relative, where the filename path, and it is
relative to rel_to
>>> make_path_relative('/usr/share/something/a-file.pth',
... '/usr/share/another-place/src/Directory')
'../../../something/a-file.pth'
>>> make_path_relative('/usr/share/something/a-file.pth',
... '/home/user/src/Directory')
'../../../usr/share/something/a-file.pth'
>>> make_path_relative('/usr/share/a-file.pth', '/usr/share/')
'a-file.pth'
"""
path_filename = os.path.basename(path)
path = os.path.dirname(path)
path = os.path.normpath(os.path.abspath(path))
rel_to = os.path.normpath(os.path.abspath(rel_to))
path_parts = path.strip(os.path.sep).split(os.path.sep)
rel_to_parts = rel_to.strip(os.path.sep).split(os.path.sep)
while path_parts and rel_to_parts and path_parts[0] == rel_to_parts[0]:
path_parts.pop(0)
rel_to_parts.pop(0)
full_parts = ['..'] * len(rel_to_parts) + path_parts + [path_filename]
if full_parts == ['']:
return '.' + os.path.sep
return os.path.sep.join(full_parts)
|
python
|
{
"resource": ""
}
|
q276454
|
dist_is_editable
|
test
|
def dist_is_editable(dist):
"""Is distribution an editable install?"""
# TODO: factor out determining editableness out of FrozenRequirement
from pip import FrozenRequirement
req = FrozenRequirement.from_dist(dist, [])
return req.editable
|
python
|
{
"resource": ""
}
|
q276455
|
Blueprint.url_value_preprocessor
|
test
|
def url_value_preprocessor(self, f):
"""Registers a function as URL value preprocessor for this
blueprint. It's called before the view functions are called and
can modify the url values provided.
"""
self.record_once(lambda s: s.app.url_value_preprocessors
.setdefault(self.name, []).append(f))
return f
|
python
|
{
"resource": ""
}
|
q276456
|
Blueprint.url_defaults
|
test
|
def url_defaults(self, f):
"""Callback function for URL defaults for this blueprint. It's called
with the endpoint and values and should update the values passed
in place.
"""
self.record_once(lambda s: s.app.url_default_functions
.setdefault(self.name, []).append(f))
return f
|
python
|
{
"resource": ""
}
|
q276457
|
Blueprint.errorhandler
|
test
|
def errorhandler(self, code_or_exception):
"""Registers an error handler that becomes active for this blueprint
only. Please be aware that routing does not happen local to a
blueprint so an error handler for 404 usually is not handled by
a blueprint unless it is caused inside a view function. Another
special case is the 500 internal server error which is always looked
up from the application.
Otherwise works as the :meth:`~flask.Flask.errorhandler` decorator
of the :class:`~flask.Flask` object.
"""
def decorator(f):
self.record_once(lambda s: s.app._register_error_handler(
self.name, code_or_exception, f))
return f
return decorator
|
python
|
{
"resource": ""
}
|
q276458
|
stream_with_context
|
test
|
def stream_with_context(generator_or_function):
"""Request contexts disappear when the response is started on the server.
This is done for efficiency reasons and to make it less likely to encounter
memory leaks with badly written WSGI middlewares. The downside is that if
you are using streamed responses, the generator cannot access request bound
information any more.
This function however can help you keep the context around for longer::
from flask import stream_with_context, request, Response
@app.route('/stream')
def streamed_response():
@stream_with_context
def generate():
yield 'Hello '
yield request.args['name']
yield '!'
return Response(generate())
Alternatively it can also be used around a specific generator::
from flask import stream_with_context, request, Response
@app.route('/stream')
def streamed_response():
def generate():
yield 'Hello '
yield request.args['name']
yield '!'
return Response(stream_with_context(generate()))
.. versionadded:: 0.9
"""
try:
gen = iter(generator_or_function)
except TypeError:
def decorator(*args, **kwargs):
gen = generator_or_function()
return stream_with_context(gen)
return update_wrapper(decorator, generator_or_function)
def generator():
ctx = _request_ctx_stack.top
if ctx is None:
raise RuntimeError('Attempted to stream with context but '
'there was no context in the first place to keep around.')
with ctx:
# Dummy sentinel. Has to be inside the context block or we're
# not actually keeping the context around.
yield None
# The try/finally is here so that if someone passes a WSGI level
# iterator in we're still running the cleanup logic. Generators
# don't need that because they are closed on their destruction
# automatically.
try:
for item in gen:
yield item
finally:
if hasattr(gen, 'close'):
gen.close()
# The trick is to start the generator. Then the code execution runs until
# the first dummy None is yielded at which point the context was already
# pushed. This item is discarded. Then when the iteration continues the
# real generator is executed.
wrapped_g = generator()
next(wrapped_g)
return wrapped_g
|
python
|
{
"resource": ""
}
|
q276459
|
make_response
|
test
|
def make_response(*args):
"""Sometimes it is necessary to set additional headers in a view. Because
views do not have to return response objects but can return a value that
is converted into a response object by Flask itself, it becomes tricky to
add headers to it. This function can be called instead of using a return
and you will get a response object which you can use to attach headers.
If view looked like this and you want to add a new header::
def index():
return render_template('index.html', foo=42)
You can now do something like this::
def index():
response = make_response(render_template('index.html', foo=42))
response.headers['X-Parachutes'] = 'parachutes are cool'
return response
This function accepts the very same arguments you can return from a
view function. This for example creates a response with a 404 error
code::
response = make_response(render_template('not_found.html'), 404)
The other use case of this function is to force the return value of a
view function into a response which is helpful with view
decorators::
response = make_response(view_function())
response.headers['X-Parachutes'] = 'parachutes are cool'
Internally this function does the following things:
- if no arguments are passed, it creates a new response argument
- if one argument is passed, :meth:`flask.Flask.make_response`
is invoked with it.
- if more than one argument is passed, the arguments are passed
to the :meth:`flask.Flask.make_response` function as tuple.
.. versionadded:: 0.6
"""
if not args:
return current_app.response_class()
if len(args) == 1:
args = args[0]
return current_app.make_response(args)
|
python
|
{
"resource": ""
}
|
q276460
|
url_for
|
test
|
def url_for(endpoint, **values):
"""Generates a URL to the given endpoint with the method provided.
Variable arguments that are unknown to the target endpoint are appended
to the generated URL as query arguments. If the value of a query argument
is `None`, the whole pair is skipped. In case blueprints are active
you can shortcut references to the same blueprint by prefixing the
local endpoint with a dot (``.``).
This will reference the index function local to the current blueprint::
url_for('.index')
For more information, head over to the :ref:`Quickstart <url-building>`.
To integrate applications, :class:`Flask` has a hook to intercept URL build
errors through :attr:`Flask.build_error_handler`. The `url_for` function
results in a :exc:`~werkzeug.routing.BuildError` when the current app does
not have a URL for the given endpoint and values. When it does, the
:data:`~flask.current_app` calls its :attr:`~Flask.build_error_handler` if
it is not `None`, which can return a string to use as the result of
`url_for` (instead of `url_for`'s default to raise the
:exc:`~werkzeug.routing.BuildError` exception) or re-raise the exception.
An example::
def external_url_handler(error, endpoint, **values):
"Looks up an external URL when `url_for` cannot build a URL."
# This is an example of hooking the build_error_handler.
# Here, lookup_url is some utility function you've built
# which looks up the endpoint in some external URL registry.
url = lookup_url(endpoint, **values)
if url is None:
# External lookup did not have a URL.
# Re-raise the BuildError, in context of original traceback.
exc_type, exc_value, tb = sys.exc_info()
if exc_value is error:
raise exc_type, exc_value, tb
else:
raise error
# url_for will use this result, instead of raising BuildError.
return url
app.build_error_handler = external_url_handler
Here, `error` is the instance of :exc:`~werkzeug.routing.BuildError`, and
`endpoint` and `**values` are the arguments passed into `url_for`. Note
that this is for building URLs outside the current application, and not for
handling 404 NotFound errors.
.. versionadded:: 0.10
The `_scheme` parameter was added.
.. versionadded:: 0.9
The `_anchor` and `_method` parameters were added.
.. versionadded:: 0.9
Calls :meth:`Flask.handle_build_error` on
:exc:`~werkzeug.routing.BuildError`.
:param endpoint: the endpoint of the URL (name of the function)
:param values: the variable arguments of the URL rule
:param _external: if set to `True`, an absolute URL is generated. Server
address can be changed via `SERVER_NAME` configuration variable which
defaults to `localhost`.
:param _scheme: a string specifying the desired URL scheme. The `_external`
parameter must be set to `True` or a `ValueError` is raised.
:param _anchor: if provided this is added as anchor to the URL.
:param _method: if provided this explicitly specifies an HTTP method.
"""
appctx = _app_ctx_stack.top
reqctx = _request_ctx_stack.top
if appctx is None:
raise RuntimeError('Attempted to generate a URL without the '
'application context being pushed. This has to be '
'executed when application context is available.')
# If request specific information is available we have some extra
# features that support "relative" urls.
if reqctx is not None:
url_adapter = reqctx.url_adapter
blueprint_name = request.blueprint
if not reqctx.request._is_old_module:
if endpoint[:1] == '.':
if blueprint_name is not None:
endpoint = blueprint_name + endpoint
else:
endpoint = endpoint[1:]
else:
# TODO: get rid of this deprecated functionality in 1.0
if '.' not in endpoint:
if blueprint_name is not None:
endpoint = blueprint_name + '.' + endpoint
elif endpoint.startswith('.'):
endpoint = endpoint[1:]
external = values.pop('_external', False)
# Otherwise go with the url adapter from the appctx and make
# the urls external by default.
else:
url_adapter = appctx.url_adapter
if url_adapter is None:
raise RuntimeError('Application was not able to create a URL '
'adapter for request independent URL generation. '
'You might be able to fix this by setting '
'the SERVER_NAME config variable.')
external = values.pop('_external', True)
anchor = values.pop('_anchor', None)
method = values.pop('_method', None)
scheme = values.pop('_scheme', None)
appctx.app.inject_url_defaults(endpoint, values)
if scheme is not None:
if not external:
raise ValueError('When specifying _scheme, _external must be True')
url_adapter.url_scheme = scheme
try:
rv = url_adapter.build(endpoint, values, method=method,
force_external=external)
except BuildError as error:
# We need to inject the values again so that the app callback can
# deal with that sort of stuff.
values['_external'] = external
values['_anchor'] = anchor
values['_method'] = method
return appctx.app.handle_url_build_error(error, endpoint, values)
if anchor is not None:
rv += '#' + url_quote(anchor)
return rv
|
python
|
{
"resource": ""
}
|
q276461
|
safe_join
|
test
|
def safe_join(directory, filename):
"""Safely join `directory` and `filename`.
Example usage::
@app.route('/wiki/<path:filename>')
def wiki_page(filename):
filename = safe_join(app.config['WIKI_FOLDER'], filename)
with open(filename, 'rb') as fd:
content = fd.read() # Read and process the file content...
:param directory: the base directory.
:param filename: the untrusted filename relative to that directory.
:raises: :class:`~werkzeug.exceptions.NotFound` if the resulting path
would fall out of `directory`.
"""
filename = posixpath.normpath(filename)
for sep in _os_alt_seps:
if sep in filename:
raise NotFound()
if os.path.isabs(filename) or \
filename == '..' or \
filename.startswith('../'):
raise NotFound()
return os.path.join(directory, filename)
|
python
|
{
"resource": ""
}
|
q276462
|
get_root_path
|
test
|
def get_root_path(import_name):
"""Returns the path to a package or cwd if that cannot be found. This
returns the path of a package or the folder that contains a module.
Not to be confused with the package path returned by :func:`find_package`.
"""
# Module already imported and has a file attribute. Use that first.
mod = sys.modules.get(import_name)
if mod is not None and hasattr(mod, '__file__'):
return os.path.dirname(os.path.abspath(mod.__file__))
# Next attempt: check the loader.
loader = pkgutil.get_loader(import_name)
# Loader does not exist or we're referring to an unloaded main module
# or a main module without path (interactive sessions), go with the
# current working directory.
if loader is None or import_name == '__main__':
return os.getcwd()
# For .egg, zipimporter does not have get_filename until Python 2.7.
# Some other loaders might exhibit the same behavior.
if hasattr(loader, 'get_filename'):
filepath = loader.get_filename(import_name)
else:
# Fall back to imports.
__import__(import_name)
filepath = sys.modules[import_name].__file__
# filepath is import_name.py for a module, or __init__.py for a package.
return os.path.dirname(os.path.abspath(filepath))
|
python
|
{
"resource": ""
}
|
q276463
|
_PackageBoundObject.jinja_loader
|
test
|
def jinja_loader(self):
"""The Jinja loader for this package bound object.
.. versionadded:: 0.5
"""
if self.template_folder is not None:
return FileSystemLoader(os.path.join(self.root_path,
self.template_folder))
|
python
|
{
"resource": ""
}
|
q276464
|
CompletionCommand.run
|
test
|
def run(self, options, args):
"""Prints the completion code of the given shell"""
shells = COMPLETION_SCRIPTS.keys()
shell_options = ['--' + shell for shell in sorted(shells)]
if options.shell in shells:
script = COMPLETION_SCRIPTS.get(options.shell, '')
print(BASE_COMPLETION % {'script': script, 'shell': options.shell})
else:
sys.stderr.write(
'ERROR: You must pass %s\n' % ' or '.join(shell_options)
)
|
python
|
{
"resource": ""
}
|
q276465
|
SessionInterface.get_cookie_domain
|
test
|
def get_cookie_domain(self, app):
"""Helpful helper method that returns the cookie domain that should
be used for the session cookie if session cookies are used.
"""
if app.config['SESSION_COOKIE_DOMAIN'] is not None:
return app.config['SESSION_COOKIE_DOMAIN']
if app.config['SERVER_NAME'] is not None:
# chop of the port which is usually not supported by browsers
rv = '.' + app.config['SERVER_NAME'].rsplit(':', 1)[0]
# Google chrome does not like cookies set to .localhost, so
# we just go with no domain then. Flask documents anyways that
# cross domain cookies need a fully qualified domain name
if rv == '.localhost':
rv = None
# If we infer the cookie domain from the server name we need
# to check if we are in a subpath. In that case we can't
# set a cross domain cookie.
if rv is not None:
path = self.get_cookie_path(app)
if path != '/':
rv = rv.lstrip('.')
return rv
|
python
|
{
"resource": ""
}
|
q276466
|
_cache_for_link
|
test
|
def _cache_for_link(cache_dir, link):
"""
Return a directory to store cached wheels in for link.
Because there are M wheels for any one sdist, we provide a directory
to cache them in, and then consult that directory when looking up
cache hits.
We only insert things into the cache if they have plausible version
numbers, so that we don't contaminate the cache with things that were not
unique. E.g. ./package might have dozens of installs done for it and build
a version of 0.0...and if we built and cached a wheel, we'd end up using
the same wheel even if the source has been edited.
:param cache_dir: The cache_dir being used by pip.
:param link: The link of the sdist for which this will cache wheels.
"""
# We want to generate an url to use as our cache key, we don't want to just
# re-use the URL because it might have other items in the fragment and we
# don't care about those.
key_parts = [link.url_without_fragment]
if link.hash_name is not None and link.hash is not None:
key_parts.append("=".join([link.hash_name, link.hash]))
key_url = "#".join(key_parts)
# Encode our key url with sha224, we'll use this because it has similar
# security properties to sha256, but with a shorter total output (and thus
# less secure). However the differences don't make a lot of difference for
# our use case here.
hashed = hashlib.sha224(key_url.encode()).hexdigest()
# We want to nest the directories some to prevent having a ton of top level
# directories where we might run out of sub directories on some FS.
parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
# Inside of the base location for cached wheels, expand our parts and join
# them all together.
return os.path.join(cache_dir, "wheels", *parts)
|
python
|
{
"resource": ""
}
|
q276467
|
root_is_purelib
|
test
|
def root_is_purelib(name, wheeldir):
"""
Return True if the extracted wheel in wheeldir should go into purelib.
"""
name_folded = name.replace("-", "_")
for item in os.listdir(wheeldir):
match = dist_info_re.match(item)
if match and match.group('name') == name_folded:
with open(os.path.join(wheeldir, item, 'WHEEL')) as wheel:
for line in wheel:
line = line.lower().rstrip()
if line == "root-is-purelib: true":
return True
return False
|
python
|
{
"resource": ""
}
|
q276468
|
uninstallation_paths
|
test
|
def uninstallation_paths(dist):
"""
Yield all the uninstallation paths for dist based on RECORD-without-.pyc
Yield paths to all the files in RECORD. For each .py file in RECORD, add
the .pyc in the same directory.
UninstallPathSet.add() takes care of the __pycache__ .pyc.
"""
from pip.utils import FakeFile # circular import
r = csv.reader(FakeFile(dist.get_metadata_lines('RECORD')))
for row in r:
path = os.path.join(dist.location, row[0])
yield path
if path.endswith('.py'):
dn, fn = os.path.split(path)
base = fn[:-3]
path = os.path.join(dn, base + '.pyc')
yield path
|
python
|
{
"resource": ""
}
|
q276469
|
check_compatibility
|
test
|
def check_compatibility(version, name):
"""
Raises errors or warns if called with an incompatible Wheel-Version.
Pip should refuse to install a Wheel-Version that's a major series
ahead of what it's compatible with (e.g 2.0 > 1.1); and warn when
installing a version only minor version ahead (e.g 1.2 > 1.1).
version: a 2-tuple representing a Wheel-Version (Major, Minor)
name: name of wheel or package to raise exception about
:raises UnsupportedWheel: when an incompatible Wheel-Version is given
"""
if not version:
raise UnsupportedWheel(
"%s is in an unsupported or invalid wheel" % name
)
if version[0] > VERSION_COMPATIBLE[0]:
raise UnsupportedWheel(
"%s's Wheel-Version (%s) is not compatible with this version "
"of pip" % (name, '.'.join(map(str, version)))
)
elif version > VERSION_COMPATIBLE:
logger.warning(
'Installing from a newer Wheel-Version (%s)',
'.'.join(map(str, version)),
)
|
python
|
{
"resource": ""
}
|
q276470
|
WheelBuilder._build_one
|
test
|
def _build_one(self, req, output_dir):
"""Build one wheel.
:return: The filename of the built wheel, or None if the build failed.
"""
tempd = tempfile.mkdtemp('pip-wheel-')
try:
if self.__build_one(req, tempd):
try:
wheel_name = os.listdir(tempd)[0]
wheel_path = os.path.join(output_dir, wheel_name)
shutil.move(os.path.join(tempd, wheel_name), wheel_path)
logger.info('Stored in directory: %s', output_dir)
return wheel_path
except:
return None
return None
finally:
rmtree(tempd)
|
python
|
{
"resource": ""
}
|
q276471
|
iter_symbols
|
test
|
def iter_symbols(code):
"""Yield names and strings used by `code` and its nested code objects"""
for name in code.co_names:
yield name
for const in code.co_consts:
if isinstance(const, basestring):
yield const
elif isinstance(const, CodeType):
for name in iter_symbols(const):
yield name
|
python
|
{
"resource": ""
}
|
q276472
|
ensure_fresh_rates
|
test
|
def ensure_fresh_rates(func):
"""Decorator for Backend that ensures rates are fresh within last 5 mins"""
def wrapper(self, *args, **kwargs):
if self.last_updated + timedelta(minutes=5) < zulu.now():
self.refresh()
return func(self, *args, **kwargs)
return wrapper
|
python
|
{
"resource": ""
}
|
q276473
|
manifest_maker._add_egg_info
|
test
|
def _add_egg_info(self, cmd):
"""
Add paths for egg-info files for an external egg-base.
The egg-info files are written to egg-base. If egg-base is
outside the current working directory, this method
searchs the egg-base directory for files to include
in the manifest. Uses distutils.filelist.findall (which is
really the version monkeypatched in by setuptools/__init__.py)
to perform the search.
Since findall records relative paths, prefix the returned
paths with cmd.egg_base, so add_default's include_pattern call
(which is looking for the absolute cmd.egg_info) will match
them.
"""
if cmd.egg_base == os.curdir:
# egg-info files were already added by something else
return
discovered = distutils.filelist.findall(cmd.egg_base)
resolved = (os.path.join(cmd.egg_base, path) for path in discovered)
self.filelist.allfiles.extend(resolved)
|
python
|
{
"resource": ""
}
|
q276474
|
write_delete_marker_file
|
test
|
def write_delete_marker_file(directory):
"""
Write the pip delete marker file into this directory.
"""
filepath = os.path.join(directory, PIP_DELETE_MARKER_FILENAME)
with open(filepath, 'w') as marker_fp:
marker_fp.write(DELETE_MARKER_MESSAGE)
|
python
|
{
"resource": ""
}
|
q276475
|
running_under_virtualenv
|
test
|
def running_under_virtualenv():
"""
Return True if we're running inside a virtualenv, False otherwise.
"""
if hasattr(sys, 'real_prefix'):
return True
elif sys.prefix != getattr(sys, "base_prefix", sys.prefix):
return True
return False
|
python
|
{
"resource": ""
}
|
q276476
|
__get_username
|
test
|
def __get_username():
""" Returns the effective username of the current process. """
if WINDOWS:
return getpass.getuser()
import pwd
return pwd.getpwuid(os.geteuid()).pw_name
|
python
|
{
"resource": ""
}
|
q276477
|
distutils_scheme
|
test
|
def distutils_scheme(dist_name, user=False, home=None, root=None,
isolated=False):
"""
Return a distutils install scheme
"""
from distutils.dist import Distribution
scheme = {}
if isolated:
extra_dist_args = {"script_args": ["--no-user-cfg"]}
else:
extra_dist_args = {}
dist_args = {'name': dist_name}
dist_args.update(extra_dist_args)
d = Distribution(dist_args)
d.parse_config_files()
i = d.get_command_obj('install', create=True)
# NOTE: setting user or home has the side-effect of creating the home dir
# or user base for installations during finalize_options()
# ideally, we'd prefer a scheme class that has no side-effects.
i.user = user or i.user
i.home = home or i.home
i.root = root or i.root
i.finalize_options()
for key in SCHEME_KEYS:
scheme[key] = getattr(i, 'install_' + key)
if i.install_lib is not None:
# install_lib takes precedence over purelib and platlib
scheme.update(dict(purelib=i.install_lib, platlib=i.install_lib))
if running_under_virtualenv():
scheme['headers'] = os.path.join(
sys.prefix,
'include',
'site',
'python' + sys.version[:3],
dist_name,
)
if root is not None:
scheme["headers"] = os.path.join(
root,
os.path.abspath(scheme["headers"])[1:],
)
return scheme
|
python
|
{
"resource": ""
}
|
q276478
|
CacheController.parse_cache_control
|
test
|
def parse_cache_control(self, headers):
"""
Parse the cache control headers returning a dictionary with values
for the different directives.
"""
retval = {}
cc_header = 'cache-control'
if 'Cache-Control' in headers:
cc_header = 'Cache-Control'
if cc_header in headers:
parts = headers[cc_header].split(',')
parts_with_args = [
tuple([x.strip().lower() for x in part.split("=", 1)])
for part in parts if -1 != part.find("=")
]
parts_wo_args = [
(name.strip().lower(), 1)
for name in parts if -1 == name.find("=")
]
retval = dict(parts_with_args + parts_wo_args)
return retval
|
python
|
{
"resource": ""
}
|
q276479
|
CacheController.cached_request
|
test
|
def cached_request(self, request):
"""
Return a cached response if it exists in the cache, otherwise
return False.
"""
cache_url = self.cache_url(request.url)
cc = self.parse_cache_control(request.headers)
# non-caching states
no_cache = True if 'no-cache' in cc else False
if 'max-age' in cc and cc['max-age'] == 0:
no_cache = True
# Bail out if no-cache was set
if no_cache:
return False
# It is in the cache, so lets see if it is going to be
# fresh enough
resp = self.serializer.loads(request, self.cache.get(cache_url))
# Check to see if we have a cached object
if not resp:
return False
# If we have a cached 301, return it immediately. We don't
# need to test our response for other headers b/c it is
# intrinsically "cacheable" as it is Permanent.
# See:
# https://tools.ietf.org/html/rfc7231#section-6.4.2
#
# Client can try to refresh the value by repeating the request
# with cache busting headers as usual (ie no-cache).
if resp.status == 301:
return resp
headers = CaseInsensitiveDict(resp.headers)
if not headers or 'date' not in headers:
# With date or etag, the cached response can never be used
# and should be deleted.
if 'etag' not in headers:
self.cache.delete(cache_url)
return False
now = time.time()
date = calendar.timegm(
parsedate_tz(headers['date'])
)
current_age = max(0, now - date)
# TODO: There is an assumption that the result will be a
# urllib3 response object. This may not be best since we
# could probably avoid instantiating or constructing the
# response until we know we need it.
resp_cc = self.parse_cache_control(headers)
# determine freshness
freshness_lifetime = 0
# Check the max-age pragma in the cache control header
if 'max-age' in resp_cc and resp_cc['max-age'].isdigit():
freshness_lifetime = int(resp_cc['max-age'])
# If there isn't a max-age, check for an expires header
elif 'expires' in headers:
expires = parsedate_tz(headers['expires'])
if expires is not None:
expire_time = calendar.timegm(expires) - date
freshness_lifetime = max(0, expire_time)
# determine if we are setting freshness limit in the req
if 'max-age' in cc:
try:
freshness_lifetime = int(cc['max-age'])
except ValueError:
freshness_lifetime = 0
if 'min-fresh' in cc:
try:
min_fresh = int(cc['min-fresh'])
except ValueError:
min_fresh = 0
# adjust our current age by our min fresh
current_age += min_fresh
# see how fresh we actually are
fresh = (freshness_lifetime > current_age)
if fresh:
return resp
# we're not fresh. If we don't have an Etag, clear it out
if 'etag' not in headers:
self.cache.delete(cache_url)
# return the original handler
return False
|
python
|
{
"resource": ""
}
|
q276480
|
CacheController.cache_response
|
test
|
def cache_response(self, request, response, body=None):
"""
Algorithm for caching requests.
This assumes a requests Response object.
"""
# From httplib2: Don't cache 206's since we aren't going to
# handle byte range requests
if response.status not in [200, 203, 300, 301]:
return
response_headers = CaseInsensitiveDict(response.headers)
cc_req = self.parse_cache_control(request.headers)
cc = self.parse_cache_control(response_headers)
cache_url = self.cache_url(request.url)
# Delete it from the cache if we happen to have it stored there
no_store = cc.get('no-store') or cc_req.get('no-store')
if no_store and self.cache.get(cache_url):
self.cache.delete(cache_url)
# If we've been given an etag, then keep the response
if self.cache_etags and 'etag' in response_headers:
self.cache.set(
cache_url,
self.serializer.dumps(request, response, body=body),
)
# Add to the cache any 301s. We do this before looking that
# the Date headers.
elif response.status == 301:
self.cache.set(
cache_url,
self.serializer.dumps(request, response)
)
# Add to the cache if the response headers demand it. If there
# is no date header then we can't do anything about expiring
# the cache.
elif 'date' in response_headers:
# cache when there is a max-age > 0
if cc and cc.get('max-age'):
if int(cc['max-age']) > 0:
self.cache.set(
cache_url,
self.serializer.dumps(request, response, body=body),
)
# If the request can expire, it means we should cache it
# in the meantime.
elif 'expires' in response_headers:
if response_headers['expires']:
self.cache.set(
cache_url,
self.serializer.dumps(request, response, body=body),
)
|
python
|
{
"resource": ""
}
|
q276481
|
_update_zipimporter_cache
|
test
|
def _update_zipimporter_cache(normalized_path, cache, updater=None):
"""
Update zipimporter cache data for a given normalized path.
Any sub-path entries are processed as well, i.e. those corresponding to zip
archives embedded in other zip archives.
Given updater is a callable taking a cache entry key and the original entry
(after already removing the entry from the cache), and expected to update
the entry and possibly return a new one to be inserted in its place.
Returning None indicates that the entry should not be replaced with a new
one. If no updater is given, the cache entries are simply removed without
any additional processing, the same as if the updater simply returned None.
"""
for p in _collect_zipimporter_cache_entries(normalized_path, cache):
# N.B. pypy's custom zipimport._zip_directory_cache implementation does
# not support the complete dict interface:
# * Does not support item assignment, thus not allowing this function
# to be used only for removing existing cache entries.
# * Does not support the dict.pop() method, forcing us to use the
# get/del patterns instead. For more detailed information see the
# following links:
# https://bitbucket.org/pypa/setuptools/issue/202/more-robust-zipimporter-cache-invalidation#comment-10495960
# https://bitbucket.org/pypy/pypy/src/dd07756a34a41f674c0cacfbc8ae1d4cc9ea2ae4/pypy/module/zipimport/interp_zipimport.py#cl-99
old_entry = cache[p]
del cache[p]
new_entry = updater and updater(p, old_entry)
if new_entry is not None:
cache[p] = new_entry
|
python
|
{
"resource": ""
}
|
q276482
|
easy_install._load_template
|
test
|
def _load_template(dev_path):
"""
There are a couple of template scripts in the package. This
function loads one of them and prepares it for use.
"""
# See https://bitbucket.org/pypa/setuptools/issue/134 for info
# on script file naming and downstream issues with SVR4
name = 'script.tmpl'
if dev_path:
name = name.replace('.tmpl', ' (dev).tmpl')
raw_bytes = resource_string('setuptools', name)
return raw_bytes.decode('utf-8')
|
python
|
{
"resource": ""
}
|
q276483
|
easy_install.install_site_py
|
test
|
def install_site_py(self):
"""Make sure there's a site.py in the target dir, if needed"""
if self.sitepy_installed:
return # already did it, or don't need to
sitepy = os.path.join(self.install_dir, "site.py")
source = resource_string("setuptools", "site-patch.py")
current = ""
if os.path.exists(sitepy):
log.debug("Checking existing site.py in %s", self.install_dir)
f = open(sitepy, 'rb')
current = f.read()
# we want str, not bytes
if PY3:
current = current.decode()
f.close()
if not current.startswith('def __boot():'):
raise DistutilsError(
"%s is not a setuptools-generated site.py; please"
" remove it." % sitepy
)
if current != source:
log.info("Creating %s", sitepy)
if not self.dry_run:
ensure_directory(sitepy)
f = open(sitepy, 'wb')
f.write(source)
f.close()
self.byte_compile([sitepy])
self.sitepy_installed = True
|
python
|
{
"resource": ""
}
|
q276484
|
PthDistributions.save
|
test
|
def save(self):
"""Write changed .pth file back to disk"""
if not self.dirty:
return
data = '\n'.join(map(self.make_relative, self.paths))
if data:
log.debug("Saving %s", self.filename)
data = (
"import sys; sys.__plen = len(sys.path)\n"
"%s\n"
"import sys; new=sys.path[sys.__plen:];"
" del sys.path[sys.__plen:];"
" p=getattr(sys,'__egginsert',0); sys.path[p:p]=new;"
" sys.__egginsert = p+len(new)\n"
) % data
if os.path.islink(self.filename):
os.unlink(self.filename)
f = open(self.filename, 'wt')
f.write(data)
f.close()
elif os.path.exists(self.filename):
log.debug("Deleting empty %s", self.filename)
os.unlink(self.filename)
self.dirty = False
|
python
|
{
"resource": ""
}
|
q276485
|
BaseConfigurator.convert
|
test
|
def convert(self, value):
"""
Convert values to an appropriate type. dicts, lists and tuples are
replaced by their converting alternatives. Strings are checked to
see if they have a conversion format and are converted if they do.
"""
if not isinstance(value, ConvertingDict) and isinstance(value, dict):
value = ConvertingDict(value)
value.configurator = self
elif not isinstance(value, ConvertingList) and isinstance(value, list):
value = ConvertingList(value)
value.configurator = self
elif not isinstance(value, ConvertingTuple) and\
isinstance(value, tuple):
value = ConvertingTuple(value)
value.configurator = self
elif isinstance(value, six.string_types): # str for py3k
m = self.CONVERT_PATTERN.match(value)
if m:
d = m.groupdict()
prefix = d['prefix']
converter = self.value_converters.get(prefix, None)
if converter:
suffix = d['suffix']
converter = getattr(self, converter)
value = converter(suffix)
return value
|
python
|
{
"resource": ""
}
|
q276486
|
DictConfigurator.add_filters
|
test
|
def add_filters(self, filterer, filters):
"""Add filters to a filterer from a list of names."""
for f in filters:
try:
filterer.addFilter(self.config['filters'][f])
except StandardError as e:
raise ValueError('Unable to add filter %r: %s' % (f, e))
|
python
|
{
"resource": ""
}
|
q276487
|
DictConfigurator.configure_handler
|
test
|
def configure_handler(self, config):
"""Configure a handler from a dictionary."""
formatter = config.pop('formatter', None)
if formatter:
try:
formatter = self.config['formatters'][formatter]
except StandardError as e:
raise ValueError('Unable to set formatter '
'%r: %s' % (formatter, e))
level = config.pop('level', None)
filters = config.pop('filters', None)
if '()' in config:
c = config.pop('()')
if not hasattr(c, '__call__') and hasattr(types, 'ClassType') and type(c) != types.ClassType:
c = self.resolve(c)
factory = c
else:
klass = self.resolve(config.pop('class'))
# Special case for handler which refers to another handler
if issubclass(klass, logging.handlers.MemoryHandler) and\
'target' in config:
try:
config['target'] = self.config['handlers'][config['target']]
except StandardError as e:
raise ValueError('Unable to set target handler '
'%r: %s' % (config['target'], e))
elif issubclass(klass, logging.handlers.SMTPHandler) and\
'mailhost' in config:
config['mailhost'] = self.as_tuple(config['mailhost'])
elif issubclass(klass, logging.handlers.SysLogHandler) and\
'address' in config:
config['address'] = self.as_tuple(config['address'])
factory = klass
kwargs = dict((k, config[k]) for k in config if valid_ident(k))
try:
result = factory(**kwargs)
except TypeError as te:
if "'stream'" not in str(te):
raise
# The argument name changed from strm to stream
# Retry with old name.
# This is so that code can be used with older Python versions
#(e.g. by Django)
kwargs['strm'] = kwargs.pop('stream')
result = factory(**kwargs)
if formatter:
result.setFormatter(formatter)
if level is not None:
result.setLevel(_checkLevel(level))
if filters:
self.add_filters(result, filters)
return result
|
python
|
{
"resource": ""
}
|
q276488
|
DictConfigurator.add_handlers
|
test
|
def add_handlers(self, logger, handlers):
"""Add handlers to a logger from a list of names."""
for h in handlers:
try:
logger.addHandler(self.config['handlers'][h])
except StandardError as e:
raise ValueError('Unable to add handler %r: %s' % (h, e))
|
python
|
{
"resource": ""
}
|
q276489
|
DictConfigurator.common_logger_config
|
test
|
def common_logger_config(self, logger, config, incremental=False):
"""
Perform configuration which is common to root and non-root loggers.
"""
level = config.get('level', None)
if level is not None:
logger.setLevel(_checkLevel(level))
if not incremental:
# Remove any existing handlers
for h in logger.handlers[:]:
logger.removeHandler(h)
handlers = config.get('handlers', None)
if handlers:
self.add_handlers(logger, handlers)
filters = config.get('filters', None)
if filters:
self.add_filters(logger, filters)
|
python
|
{
"resource": ""
}
|
q276490
|
_execfile
|
test
|
def _execfile(filename, globals, locals=None):
"""
Python 3 implementation of execfile.
"""
mode = 'rb'
with open(filename, mode) as stream:
script = stream.read()
# compile() function in Python 2.6 and 3.1 requires LF line endings.
if sys.version_info[:2] < (2, 7) or sys.version_info[:2] >= (3, 0) and sys.version_info[:2] < (3, 2):
script = script.replace(b'\r\n', b'\n')
script = script.replace(b'\r', b'\n')
if locals is None:
locals = globals
code = compile(script, filename, 'exec')
exec(code, globals, locals)
|
python
|
{
"resource": ""
}
|
q276491
|
override_temp
|
test
|
def override_temp(replacement):
"""
Monkey-patch tempfile.tempdir with replacement, ensuring it exists
"""
if not os.path.isdir(replacement):
os.makedirs(replacement)
saved = tempfile.tempdir
tempfile.tempdir = replacement
try:
yield
finally:
tempfile.tempdir = saved
|
python
|
{
"resource": ""
}
|
q276492
|
Git.get_url_rev
|
test
|
def get_url_rev(self):
"""
Prefixes stub URLs like 'user@hostname:user/repo.git' with 'ssh://'.
That's required because although they use SSH they sometimes doesn't
work with a ssh:// scheme (e.g. Github). But we need a scheme for
parsing. Hence we remove it again afterwards and return it as a stub.
"""
if '://' not in self.url:
assert 'file:' not in self.url
self.url = self.url.replace('git+', 'git+ssh://')
url, rev = super(Git, self).get_url_rev()
url = url.replace('ssh://', '')
else:
url, rev = super(Git, self).get_url_rev()
return url, rev
|
python
|
{
"resource": ""
}
|
q276493
|
Environment.getitem
|
test
|
def getitem(self, obj, argument):
"""Get an item or attribute of an object but prefer the item."""
try:
return obj[argument]
except (TypeError, LookupError):
if isinstance(argument, string_types):
try:
attr = str(argument)
except Exception:
pass
else:
try:
return getattr(obj, attr)
except AttributeError:
pass
return self.undefined(obj=obj, name=argument)
|
python
|
{
"resource": ""
}
|
q276494
|
Environment._generate
|
test
|
def _generate(self, source, name, filename, defer_init=False):
"""Internal hook that can be overridden to hook a different generate
method in.
.. versionadded:: 2.5
"""
return generate(source, self, name, filename, defer_init=defer_init)
|
python
|
{
"resource": ""
}
|
q276495
|
Environment.compile_templates
|
test
|
def compile_templates(self, target, extensions=None, filter_func=None,
zip='deflated', log_function=None,
ignore_errors=True, py_compile=False):
"""Finds all the templates the loader can find, compiles them
and stores them in `target`. If `zip` is `None`, instead of in a
zipfile, the templates will be will be stored in a directory.
By default a deflate zip algorithm is used, to switch to
the stored algorithm, `zip` can be set to ``'stored'``.
`extensions` and `filter_func` are passed to :meth:`list_templates`.
Each template returned will be compiled to the target folder or
zipfile.
By default template compilation errors are ignored. In case a
log function is provided, errors are logged. If you want template
syntax errors to abort the compilation you can set `ignore_errors`
to `False` and you will get an exception on syntax errors.
If `py_compile` is set to `True` .pyc files will be written to the
target instead of standard .py files. This flag does not do anything
on pypy and Python 3 where pyc files are not picked up by itself and
don't give much benefit.
.. versionadded:: 2.4
"""
from jinja2.loaders import ModuleLoader
if log_function is None:
log_function = lambda x: None
if py_compile:
if not PY2 or PYPY:
from warnings import warn
warn(Warning('py_compile has no effect on pypy or Python 3'))
py_compile = False
else:
import imp, marshal
py_header = imp.get_magic() + \
u'\xff\xff\xff\xff'.encode('iso-8859-15')
# Python 3.3 added a source filesize to the header
if sys.version_info >= (3, 3):
py_header += u'\x00\x00\x00\x00'.encode('iso-8859-15')
def write_file(filename, data, mode):
if zip:
info = ZipInfo(filename)
info.external_attr = 0o755 << 16
zip_file.writestr(info, data)
else:
f = open(os.path.join(target, filename), mode)
try:
f.write(data)
finally:
f.close()
if zip is not None:
from zipfile import ZipFile, ZipInfo, ZIP_DEFLATED, ZIP_STORED
zip_file = ZipFile(target, 'w', dict(deflated=ZIP_DEFLATED,
stored=ZIP_STORED)[zip])
log_function('Compiling into Zip archive "%s"' % target)
else:
if not os.path.isdir(target):
os.makedirs(target)
log_function('Compiling into folder "%s"' % target)
try:
for name in self.list_templates(extensions, filter_func):
source, filename, _ = self.loader.get_source(self, name)
try:
code = self.compile(source, name, filename, True, True)
except TemplateSyntaxError as e:
if not ignore_errors:
raise
log_function('Could not compile "%s": %s' % (name, e))
continue
filename = ModuleLoader.get_module_filename(name)
if py_compile:
c = self._compile(code, encode_filename(filename))
write_file(filename + 'c', py_header +
marshal.dumps(c), 'wb')
log_function('Byte-compiled "%s" as %s' %
(name, filename + 'c'))
else:
write_file(filename, code, 'w')
log_function('Compiled "%s" as %s' % (name, filename))
finally:
if zip:
zip_file.close()
log_function('Finished compiling templates')
|
python
|
{
"resource": ""
}
|
q276496
|
get_default_cache
|
test
|
def get_default_cache():
"""Determine the default cache location
This returns the ``PYTHON_EGG_CACHE`` environment variable, if set.
Otherwise, on Windows, it returns a "Python-Eggs" subdirectory of the
"Application Data" directory. On all other systems, it's "~/.python-eggs".
"""
try:
return os.environ['PYTHON_EGG_CACHE']
except KeyError:
pass
if os.name!='nt':
return os.path.expanduser('~/.python-eggs')
# XXX this may be locale-specific!
app_data = 'Application Data'
app_homes = [
# best option, should be locale-safe
(('APPDATA',), None),
(('USERPROFILE',), app_data),
(('HOMEDRIVE','HOMEPATH'), app_data),
(('HOMEPATH',), app_data),
(('HOME',), None),
# 95/98/ME
(('WINDIR',), app_data),
]
for keys, subdir in app_homes:
dirname = ''
for key in keys:
if key in os.environ:
dirname = os.path.join(dirname, os.environ[key])
else:
break
else:
if subdir:
dirname = os.path.join(dirname, subdir)
return os.path.join(dirname, 'Python-Eggs')
else:
raise RuntimeError(
"Please set the PYTHON_EGG_CACHE enviroment variable"
)
|
python
|
{
"resource": ""
}
|
q276497
|
find_eggs_in_zip
|
test
|
def find_eggs_in_zip(importer, path_item, only=False):
"""
Find eggs in zip files; possibly multiple nested eggs.
"""
if importer.archive.endswith('.whl'):
# wheels are not supported with this finder
# they don't have PKG-INFO metadata, and won't ever contain eggs
return
metadata = EggMetadata(importer)
if metadata.has_metadata('PKG-INFO'):
yield Distribution.from_filename(path_item, metadata=metadata)
if only:
# don't yield nested distros
return
for subitem in metadata.resource_listdir('/'):
if subitem.endswith('.egg'):
subpath = os.path.join(path_item, subitem)
for dist in find_eggs_in_zip(zipimport.zipimporter(subpath), subpath):
yield dist
|
python
|
{
"resource": ""
}
|
q276498
|
find_on_path
|
test
|
def find_on_path(importer, path_item, only=False):
"""Yield distributions accessible on a sys.path directory"""
path_item = _normalize_cached(path_item)
if os.path.isdir(path_item) and os.access(path_item, os.R_OK):
if path_item.lower().endswith('.egg'):
# unpacked egg
yield Distribution.from_filename(
path_item, metadata=PathMetadata(
path_item, os.path.join(path_item,'EGG-INFO')
)
)
else:
# scan for .egg and .egg-info in directory
for entry in os.listdir(path_item):
lower = entry.lower()
if lower.endswith('.egg-info') or lower.endswith('.dist-info'):
fullpath = os.path.join(path_item, entry)
if os.path.isdir(fullpath):
# egg-info directory, allow getting metadata
metadata = PathMetadata(path_item, fullpath)
else:
metadata = FileMetadata(fullpath)
yield Distribution.from_location(
path_item, entry, metadata, precedence=DEVELOP_DIST
)
elif not only and lower.endswith('.egg'):
dists = find_distributions(os.path.join(path_item, entry))
for dist in dists:
yield dist
elif not only and lower.endswith('.egg-link'):
with open(os.path.join(path_item, entry)) as entry_file:
entry_lines = entry_file.readlines()
for line in entry_lines:
if not line.strip():
continue
path = os.path.join(path_item, line.rstrip())
dists = find_distributions(path)
for item in dists:
yield item
break
|
python
|
{
"resource": ""
}
|
q276499
|
declare_namespace
|
test
|
def declare_namespace(packageName):
"""Declare that package 'packageName' is a namespace package"""
imp.acquire_lock()
try:
if packageName in _namespace_packages:
return
path, parent = sys.path, None
if '.' in packageName:
parent = '.'.join(packageName.split('.')[:-1])
declare_namespace(parent)
if parent not in _namespace_packages:
__import__(parent)
try:
path = sys.modules[parent].__path__
except AttributeError:
raise TypeError("Not a package:", parent)
# Track what packages are namespaces, so when new path items are added,
# they can be updated
_namespace_packages.setdefault(parent,[]).append(packageName)
_namespace_packages.setdefault(packageName,[])
for path_item in path:
# Ensure all the parent's path items are reflected in the child,
# if they apply
_handle_ns(packageName, path_item)
finally:
imp.release_lock()
|
python
|
{
"resource": ""
}
|
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