From: Mark Shannon <mark@hotpy.org>
Date: Tue, 16 Mar 2021 13:43:58 +0000 (+0000)
Subject: Add PEP 626 to what's new in 3.10. (#24892)
X-Git-Tag: v3.10.0a7~143
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6086ae7fd4aeb4089282189673f9bd0cc33abf9b;p=thirdparty%2FPython%2Fcpython.git

Add PEP 626 to what's new in 3.10. (#24892)
---

diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index c4c282e5a04e..00b0f985e338 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -167,6 +167,14 @@ These improvements are inspired by previous work in the PyPy interpreter.
 (Contributed by Pablo Galindo in :issue:`42864` and Batuhan Taskaya in
 :issue:`40176`.)
 
+PEP 626: Precise line numbers for debugging and other tools
+-----------------------------------------------------------
+
+PEP 626 brings more precise and reliable line numbers for debugging, profiling and coverage tools.
+Tracing events, with the correct line number, are generated for all lines of code executed and only for lines of code that are executed.
+
+The ``f_lineo`` attribute of frame objects will always contain the expected line number.
+
 
 PEP 634: Structural Pattern Matching
 ------------------------------------