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import os
from pathlib import Path
from typing import Union
class FileIO:
def __init__(self, path: Union[os.PathLike, str]):
if isinstance(path, str):
path = Path(path)
self.path = path
def read(self): # Returns bytes/str
# We would like to read unicode here, but we cannot, because we are not
# sure if it is a valid unicode file. Therefore just read whatever is
# here.
with open(self.path, 'rb') as f:
return f.read()
def get_last_modified(self):
"""
Returns float - timestamp or None, if path doesn't exist.
"""
try:
return os.path.getmtime(self.path)
except FileNotFoundError:
return None
def __repr__(self):
return '%s(%s)' % (self.__class__.__name__, self.path)
class KnownContentFileIO(FileIO):
def __init__(self, path, content):
super().__init__(path)
self._content = content
def read(self):
return self._content
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