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More precise return types for open(), Path.open(), bz2.open(), etc. (#3371)

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Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Sebastian Rittau <srittau@rittau.biz>
This commit is contained in:
Ilaï Deutel
2020-05-28 09:20:23 -07:00
committed by GitHub
parent adafaf1964
commit 846d922df2
9 changed files with 321 additions and 75 deletions
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20
stdlib/3/io.pyi
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@@ -8,6 +8,11 @@ from mmap import mmap
from types import TracebackType
from typing import TypeVar
if sys.version_info >= (3, 8):
from typing import Literal
else:
from typing_extensions import Literal
_bytearray_like = Union[bytearray, mmap]
DEFAULT_BUFFER_SIZE: int
@@ -18,6 +23,21 @@ SEEK_END: int
_T = TypeVar('_T', bound=IOBase)
_OpenTextMode = Literal[
'r', 'r+', '+r', 'rt', 'tr', 'rt+', 'r+t', '+rt', 'tr+', 't+r', '+tr',
'w', 'w+', '+w', 'wt', 'tw', 'wt+', 'w+t', '+wt', 'tw+', 't+w', '+tw',
'a', 'a+', '+a', 'at', 'ta', 'at+', 'a+t', '+at', 'ta+', 't+a', '+ta',
'x', 'x+', '+x', 'xt', 'tx', 'xt+', 'x+t', '+xt', 'tx+', 't+x', '+tx',
'U', 'rU', 'Ur', 'rtU', 'rUt', 'Urt', 'trU', 'tUr', 'Utr',
]
_OpenBinaryMode = Literal[
'rb', 'br', 'rb+', 'r+b', '+rb', 'br+', 'b+r', '+br',
'wb', 'bw', 'wb+', 'w+b', '+wb', 'bw+', 'b+w', '+bw',
'ab', 'ba', 'ab+', 'a+b', '+ab', 'ba+', 'b+a', '+ba',
'xb', 'bx', 'xb+', 'x+b', '+xb', 'bx+', 'b+x', '+bx',
'rbU', 'rUb', 'Urb', 'brU', 'bUr', 'Ubr',
]
open = builtins.open
if sys.version_info >= (3, 8):