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authorSerhiy Storchaka <storchaka@gmail.com>2024-02-05 20:51:11 (GMT)
committerGitHub <noreply@github.com>2024-02-05 20:51:11 (GMT)
commit652fbf88c4c422ff17fefd4dcb5e06b5c0e26e74 (patch)
tree61b36dd4f458619c68bbee592bade7ed18993dda /Lib/_pyio.py
parent09096a1647913526a3d4fa69a9d2056ec82a8f37 (diff)
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gh-82626: Emit a warning when bool is used as a file descriptor (GH-111275)
Diffstat (limited to 'Lib/_pyio.py')
-rw-r--r--Lib/_pyio.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/_pyio.py b/Lib/_pyio.py
index df2c29bf..8a0d0dc 100644
--- a/Lib/_pyio.py
+++ b/Lib/_pyio.py
@@ -1495,6 +1495,11 @@ class FileIO(RawIOBase):
if isinstance(file, float):
raise TypeError('integer argument expected, got float')
if isinstance(file, int):
+ if isinstance(file, bool):
+ import warnings
+ warnings.warn("bool is used as a file descriptor",
+ RuntimeWarning, stacklevel=2)
+ file = int(file)
fd = file
if fd < 0:
raise ValueError('negative file descriptor')