Do not quote : after all, it is far too common and not always treated specially

jhohm · jhohm · commit 9bbcfcd49571 · 2025-05-22T17:13:18.000-04:00
diff --git a/Lib/subprocess.py b/Lib/subprocess.py
@@ -618,7 +618,7 @@ def list2cmdline(seq):
         if result:
             result.append(' ')
 
-        needquote = not arg or not set(" \t:&<>^|").isdisjoint(arg)
+        needquote = not arg or not set(" \t&<>^|").isdisjoint(arg)
         if needquote:
             result.append('"')
 
diff --git a/Misc/NEWS.d/next/Windows/2025-05-22-16-36-52.gh-issue-133545.YHvz8H.rst b/Misc/NEWS.d/next/Windows/2025-05-22-16-36-52.gh-issue-133545.YHvz8H.rst
@@ -1,2 +1,2 @@
 In addition to space, tab, and empty string, quote arguments containing
-``:&<>^|`` on Windows. Patch by John Keith Hohm.
+``&<>^|`` on Windows. Patch by John Keith Hohm.

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`In addition to space, tab, and empty string, quote arguments containing`
`2`		-``:&<>^\|`` on Windows. Patch by John Keith Hohm.
	`2`	+``&<>^\|`` on Windows. Patch by John Keith Hohm.