mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-10-10 00:43:41 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 18

bpo-43680: Deprecate io.OpenWrapper (GH-25357)

Browse source 
Deprecate io.OpenWrapper and _pyio.OpenWrapper: use io.open and
_pyio.open instead. Until Python 3.9, _pyio.open was not a static
method and builtins.open was set to OpenWrapper to not become a bound
method when set to a class variable. _io.open is a built-in function
whereas _pyio.open is a Python function. In Python 3.10, _pyio.open()
is now a static method, and builtins.open() is now io.open().
This commit is contained in:
Victor Stinner 2021-04-14 03:24:33 +02:00 • committed by GitHub
parent 11159d2c9d
commit 3bc694d5f3
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
4 changed files with 44 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

17
Lib/io.py
View file

@ -56,7 +56,22 @@ from _io import (DEFAULT_BUFFER_SIZE, BlockingIOError, UnsupportedOperation,
BufferedWriter, BufferedRWPair, BufferedRandom,
IncrementalNewlineDecoder, text_encoding, TextIOWrapper)
OpenWrapper = _io.open # for compatibility with _pyio
def __getattr__(name):
if name == "OpenWrapper":
# bpo-43680: Until Python 3.9, _pyio.open was not a static method and
# builtins.open was set to OpenWrapper to not become a bound method
# when set to a class variable. _io.open is a built-in function whereas
# _pyio.open is a Python function. In Python 3.10, _pyio.open() is now
# a static method, and builtins.open() is now io.open().
import warnings
warnings.warn('OpenWrapper is deprecated, use open instead',
DeprecationWarning, stacklevel=2)
global OpenWrapper
OpenWrapper = open
return OpenWrapper
raise AttributeError(name)
# Pretend this exception was created here.
UnsupportedOperation.__module__ = "io"