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bpo-47000: Make io.text_encoding() respects UTF-8 mode (GH-32003)

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Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
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Inada Naoki 2022-04-04 11:46:57 +09:00 • committed by GitHub
parent 6db2db91b9
commit 4216dce04b
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10 changed files with 52 additions and 17 deletions
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10
Lib/_pyio.py
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@ -44,8 +44,9 @@ def text_encoding(encoding, stacklevel=2):
"""
A helper function to choose the text encoding.
When encoding is not None, just return it.
Otherwise, return the default text encoding (i.e. "locale").
When encoding is not None, this function returns it.
Otherwise, this function returns the default text encoding
(i.e. "locale" or "utf-8" depends on UTF-8 mode).
This function emits an EncodingWarning if *encoding* is None and
sys.flags.warn_default_encoding is true.
@ -55,7 +56,10 @@ def text_encoding(encoding, stacklevel=2):
However, please consider using encoding="utf-8" for new APIs.
"""
if encoding is None:
encoding = "locale"
if sys.flags.utf8_mode:
encoding = "utf-8"
else:
encoding = "locale"
if sys.flags.warn_default_encoding:
import warnings
warnings.warn("'encoding' argument not specified.",