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Accept mmap objects in places where bytearray is expected. #3014

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Accept mmap objects in places where bytearray is expected. #3014

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Accept mmap objects in places where bytearray is expected.
jonathanslenders May 27, 2019
be2e6b8
Merge branch 'master' into patch-2
srittau Oct 8, 2019
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11 changes: 7 additions & 4 deletions stdlib/2and3/mmap.pyi
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
import sys
from typing import (Optional, Sequence, Union, Generic, overload,
Iterable, Iterator, Sized, ContextManager, AnyStr)
from typing import (Optional, Union, Generic, overload, Iterable,
Iterator, Sized, ContextManager, AnyStr)

ACCESS_DEFAULT: int
ACCESS_READ: int
Expand Down Expand Up @@ -49,7 +49,10 @@ class _mmap(Generic[AnyStr]):
def __len__(self) -> int: ...

if sys.version_info >= (3,):
class mmap(_mmap, ContextManager[mmap], Iterable[bytes], Sized):
# Inherit both `bytearray` and `Iterable[bytes]` because mmap can be used
# in places where bytearray is expected, like re.match, while iterating
# through `mmap` yields `bytes` objects, not integers.
class mmap(_mmap, ContextManager[mmap], bytearray, Iterable[bytes], Sized):
closed: bool
def rfind(self, sub: bytes, start: int = ..., stop: int = ...) -> int: ...
@overload
Expand All @@ -65,7 +68,7 @@ if sys.version_info >= (3,):
# __len__, so we claim that there is also an __iter__ to help type checkers.
def __iter__(self) -> Iterator[bytes]: ...
else:
class mmap(_mmap, Sequence[bytes]):
class mmap(_mmap, bytes):
def rfind(self, string: bytes, start: int = ..., stop: int = ...) -> int: ...
def __getitem__(self, index: Union[int, slice]) -> bytes: ...
def __getslice__(self, i: Optional[int], j: Optional[int]) -> bytes: ...
Expand Down