https://github.com/python/cpython/commit/3a189af4b203b9b3bd466680161b32016502defb
commit: 3a189af4b203b9b3bd466680161b32016502defb
branch: main
author: donBarbos <[email protected]>
committer: hugovk <[email protected]>
date: 2025-03-13T13:22:16+02:00
summary:
gh-93096: Remove CLI interface for `difflib` (#131099)
files:
A Misc/NEWS.d/next/Library/2025-03-11-20-35-41.gh-issue-93096.Jdt_8a.rst
M Doc/library/cmdline.rst
M Lib/difflib.py
diff --git a/Doc/library/cmdline.rst b/Doc/library/cmdline.rst
index 59629b693ba00f..a000eb21845bac 100644
--- a/Doc/library/cmdline.rst
+++ b/Doc/library/cmdline.rst
@@ -11,7 +11,6 @@ The following modules have a command-line interface.
* :mod:`code`
* :ref:`compileall <compileall-cli>`
* :mod:`cProfile`: see :ref:`profile <profile-cli>`
-* :ref:`difflib <difflib-interface>`
* :ref:`dis <dis-cli>`
* :mod:`doctest`
* :mod:`!encodings.rot_13`
diff --git a/Lib/difflib.py b/Lib/difflib.py
index c124afdd039559..bc09aa128aa6d9 100644
--- a/Lib/difflib.py
+++ b/Lib/difflib.py
@@ -2060,10 +2060,3 @@ def restore(delta, which):
for line in delta:
if line[:2] in prefixes:
yield line[2:]
-
-def _test():
- import doctest, difflib
- return doctest.testmod(difflib)
-
-if __name__ == "__main__":
- _test()
diff --git
a/Misc/NEWS.d/next/Library/2025-03-11-20-35-41.gh-issue-93096.Jdt_8a.rst
b/Misc/NEWS.d/next/Library/2025-03-11-20-35-41.gh-issue-93096.Jdt_8a.rst
new file mode 100644
index 00000000000000..69a261d558ba66
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-03-11-20-35-41.gh-issue-93096.Jdt_8a.rst
@@ -0,0 +1,2 @@
+Removed undocumented CLI ``python -m difflib``. Use ``python -m doctest
+Lib/difflib.py -v`` instead. Patch by Semyon Moroz.
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