py3: drop redundant `u''` prefixes on string literals Strings are unicode on Python 3. These were rewritten by `pyupgrade`. It's arguably better to fix the `contrib` stuff upstream and then re-vendor it, but I don't feel like waiting for that, and then all of the regression testing involved to get a minor improvement in the codebase. It was last vendored 5 years ago, and will likely be a large change anyway to drop py2 support. Also, we've already made minor formatting changes to it locally.

--- a/mercurial/store.py	Mon Jan 06 14:07:43 2025 -0500
+++ b/mercurial/store.py	Mon Jan 06 14:15:40 2025 -0500
@@ -125,7 +125,7 @@
 
     these characters will be escaped by encodefunctions
     """
-    winreserved = [ord(x) for x in u'\\:*?"<>|']
+    winreserved = [ord(x) for x in '\\:*?"<>|']
     for x in range(32):
         yield x
     for x in range(126, 256):