diff -r 6d3b67a837a6 -r c1ccefb513e4 hgext/schemes.py
--- a/hgext/schemes.py	Sat Dec 28 01:35:05 2019 -0500
+++ b/hgext/schemes.py	Sat Dec 28 01:51:17 2019 -0500
@@ -63,7 +63,7 @@
 # leave the attribute unspecified.
 testedwith = b'ships-with-hg-core'
 
-_partre = re.compile(br'\{(\d+)\}')
+_partre = re.compile(br'{(\d+)\}')
 
 
 class ShortRepository(object):