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Portable CPath

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fixes https://github.com/karlicoss/HPI/issues/28
This commit is contained in:
Dima Gerasimov 2020-04-19 21:01:04 +01:00
parent b911796c15
commit 4cd6df86cf
1 changed files with 16 additions and 2 deletions
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18
my/kython/kompress.py
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@ -1,7 +1,8 @@
""" """
Various helpers for compression Various helpers for compression
""" """
from pathlib import Path, PosixPath import pathlib
from pathlib import Path
from typing import Union from typing import Union
PathIsh = Union[Path, str] PathIsh = Union[Path, str]
@ -33,8 +34,21 @@ def kopen(path: PathIsh, *args, **kwargs): # TODO is it bytes stream??
return pp.open(*args, **kwargs) return pp.open(*args, **kwargs)
class CPath(PosixPath): import typing
import os
if typing.TYPE_CHECKING:
# otherwise mypy can't figure out that BasePath is a type alias..
BasePath = pathlib.Path
else:
BasePath = pathlib.WindowsPath if os.name == 'nt' else pathlib.PosixPath
class CPath(BasePath):
""" """
Hacky way to support compressed files.
If you can think of a better way to do this, please let me know! https://github.com/karlicoss/HPI/issues/20
Ugh. So, can't override Path because of some _flavour thing. Ugh. So, can't override Path because of some _flavour thing.
Path only has _accessor and _closed slots, so can't directly set .open method Path only has _accessor and _closed slots, so can't directly set .open method
_accessor.open has to return file descriptor, doesn't work for compressed stuff. _accessor.open has to return file descriptor, doesn't work for compressed stuff.