https://github.com/python/cpython/commit/a13e94d84bff334da3da2cab523ba75b57e0787f
commit: a13e94d84bff334da3da2cab523ba75b57e0787f
branch: main
author: Savannah Ostrowski <[email protected]>
committer: savannahostrowski <[email protected]>
date: 2024-11-22T19:18:18-08:00
summary:
GH-127134: Add note about forward compatibility for suggest_on_error (#127137)
files:
M Doc/library/argparse.rst
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index e574511436d16e..410b6e11af0dc0 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -589,6 +589,14 @@ are strings::
>>> parser.parse_args(['--action', 'sumn', 1, 2, 3])
tester.py: error: argument --action: invalid choice: 'sumn', maybe you
meant 'sum'? (choose from 'sum', 'max')
+If you're writing code that needs to be compatible with older Python versions
+and want to opportunistically use ``suggest_on_error`` when it's available, you
+can set it as an attribute after initializing the parser instead of using the
+keyword argument::
+
+ >>> parser = argparse.ArgumentParser(description='Process some integers.')
+ >>> parser.suggest_on_error = True
+
.. versionadded:: 3.14
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