mercurial/util.py

--- a/mercurial/util.py	Thu Nov 14 14:07:36 2019 -0800
+++ b/mercurial/util.py	Thu Nov 14 14:14:11 2019 -0800
@@ -1823,7 +1823,7 @@
 
 
 # the location of data files matching the source code
-if procutil.mainfrozen() and getattr(sys, 'frozen', None) != b'macosx_app':
+if procutil.mainfrozen() and getattr(sys, 'frozen', None) != 'macosx_app':
     # executable version (py2exe) doesn't support __file__
     datapath = os.path.dirname(pycompat.sysexecutable)
 else: