From: Srinivas Reddy Thatiparthy (తాటిపర్తి శ్రీనివాస్  రెడ్డి) <thatiparthysreenivas@gmail.com>
Date: Mon, 17 Mar 2025 10:49:53 +0000 (+0530)
Subject: gh-129843: fix pure Python implementation of `warnings.warn_explicit` (#129848)
X-Git-Tag: v3.14.0a7~355
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=80e00ecc399db8aeaa9f3a1c87a2cfb34517d7be;p=thirdparty%2FPython%2Fcpython.git

gh-129843: fix pure Python implementation of `warnings.warn_explicit` (#129848)

The pure Python implementation of `warnings.warn_explicit` constructs a `WarningMessage`
with an incorrect source (it incorrectly sets the WarningMessage's line to the given `source`).
---

diff --git a/Lib/warnings.py b/Lib/warnings.py
index 13ad6c8aacbb..df844253ab4e 100644
--- a/Lib/warnings.py
+++ b/Lib/warnings.py
@@ -422,7 +422,7 @@ def warn_explicit(message, category, filename, lineno,
     linecache.getlines(filename, module_globals)
 
     # Print message and context
-    msg = WarningMessage(message, category, filename, lineno, source)
+    msg = WarningMessage(message, category, filename, lineno, source=source)
     _showwarnmsg(msg)
 
 
diff --git a/Misc/NEWS.d/next/Library/2025-03-17-15-45-36.gh-issue-129843.NPdpXL.rst b/Misc/NEWS.d/next/Library/2025-03-17-15-45-36.gh-issue-129843.NPdpXL.rst
new file mode 100644
index 000000000000..c16d61540edf
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-03-17-15-45-36.gh-issue-129843.NPdpXL.rst
@@ -0,0 +1 @@
+Fix incorrect argument passing in :func:`warnings.warn_explicit`.