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import pydoc
from contextlib import suppress
from typing import Dict, Optional
from jedi.inference.names import AbstractArbitraryName
try:
from pydoc_data import topics
pydoc_topics: Optional[Dict[str, str]] = topics.topics
except ImportError:
# Python 3.6.8 embeddable does not have pydoc_data.
pydoc_topics = None
class KeywordName(AbstractArbitraryName):
api_type = 'keyword'
def py__doc__(self):
return imitate_pydoc(self.string_name)
def imitate_pydoc(string):
"""
It's not possible to get the pydoc's without starting the annoying pager
stuff.
"""
if pydoc_topics is None:
return ''
h = pydoc.help
with suppress(KeyError):
# try to access symbols
string = h.symbols[string]
string, _, related = string.partition(' ')
def get_target(s):
return h.topics.get(s, h.keywords.get(s))
while isinstance(string, str):
string = get_target(string)
try:
# is a tuple now
label, related = string
except TypeError:
return ''
try:
return pydoc_topics[label].strip() if pydoc_topics else ''
except KeyError:
return ''
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