https://github.com/python/cpython/commit/0297418cacf998e778bc0517aa11eaac827b8c0f
commit: 0297418cacf998e778bc0517aa11eaac827b8c0f
branch: main
author: Serhiy Storchaka <[email protected]>
committer: serhiy-storchaka <[email protected]>
date: 2024-01-09T21:44:05+02:00
summary:
gh-113781: Silence AttributeError in warning module during Python finalization
(GH-113813)
The tracemalloc module can already be cleared.
files:
A Misc/NEWS.d/next/Library/2024-01-08-14-57-09.gh-issue-113781.IoTnwi.rst
M Lib/warnings.py
diff --git a/Lib/warnings.py b/Lib/warnings.py
index b8ff078569d2ce..4ad6ad027192e8 100644
--- a/Lib/warnings.py
+++ b/Lib/warnings.py
@@ -58,15 +58,16 @@ def _formatwarnmsg_impl(msg):
# catch Exception, not only ImportError and RecursionError.
except Exception:
# don't suggest to enable tracemalloc if it's not available
- tracing = True
+ suggest_tracemalloc = False
tb = None
else:
- tracing = tracemalloc.is_tracing()
try:
+ suggest_tracemalloc = not tracemalloc.is_tracing()
tb = tracemalloc.get_object_traceback(msg.source)
except Exception:
# When a warning is logged during Python shutdown, tracemalloc
# and the import machinery don't work anymore
+ suggest_tracemalloc = False
tb = None
if tb is not None:
@@ -85,7 +86,7 @@ def _formatwarnmsg_impl(msg):
if line:
line = line.strip()
s += ' %s\n' % line
- elif not tracing:
+ elif suggest_tracemalloc:
s += (f'{category}: Enable tracemalloc to get the object '
f'allocation traceback\n')
return s
diff --git
a/Misc/NEWS.d/next/Library/2024-01-08-14-57-09.gh-issue-113781.IoTnwi.rst
b/Misc/NEWS.d/next/Library/2024-01-08-14-57-09.gh-issue-113781.IoTnwi.rst
new file mode 100644
index 00000000000000..141230b066e22e
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-01-08-14-57-09.gh-issue-113781.IoTnwi.rst
@@ -0,0 +1,2 @@
+Silence unraisable AttributeError when warnings are emitted during Python
+finalization.
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