diff --git a/mercurial/util.py b/mercurial/util.py
--- a/mercurial/util.py
+++ b/mercurial/util.py
@@ -1823,13 +1823,7 @@
     return pycompat.ossep.join(([b'..'] * len(a)) + b) or b'.'
 
 
-# the location of data files matching the source code
-if resourceutil.mainfrozen() and getattr(sys, 'frozen', None) != 'macosx_app':
-    # executable version (py2exe) doesn't support __file__
-    datapath = os.path.dirname(pycompat.sysexecutable)
-else:
-    datapath = os.path.dirname(pycompat.fsencode(__file__))
-
+datapath = resourceutil.datapath
 i18n.setdatapath(datapath)
 
 
diff --git a/mercurial/utils/resourceutil.py b/mercurial/utils/resourceutil.py
--- a/mercurial/utils/resourceutil.py
+++ b/mercurial/utils/resourceutil.py
@@ -10,6 +10,7 @@
 from __future__ import absolute_import
 
 import imp
+import os
 import sys
 
 from .. import (
@@ -27,3 +28,11 @@
         or pycompat.safehasattr(sys, "importers")  # new py2exe
         or imp.is_frozen("__main__")  # old py2exe
     )  # tools/freeze
+
+
+# the location of data files matching the source code
+if mainfrozen() and getattr(sys, 'frozen', None) != 'macosx_app':
+    # executable version (py2exe) doesn't support __file__
+    datapath = os.path.dirname(pycompat.sysexecutable)
+else:
+    datapath = os.path.dirname(os.path.dirname(pycompat.fsencode(__file__)))