# HG changeset patch
# User Mads Kiilerich <m...@kiilerich.com>
# Date 1687863903 -7200
#      Tue Jun 27 13:05:03 2023 +0200
# Branch stable
# Node ID f45267a4d61f7687727efa7fe571d4f2522a3bb6
# Parent  85a1bdb7d945c647670761676c97ce716fe3796d
utils: imp module is removed in Python 3.12 - get is_frozen() from _imp

imp has been deprecated for a long time, and has finally been removed in Python
3.12 .

The successor importlib is using the same internal _imp module as imp, but
doesn't expose it's is_frozen. Using the internal function directly seems like
the cleanest solution.

Another alternative to
  imp.is_frozen("__main__")
is
  sys.modules['__main__'].__spec__.origin == 'frozen'
but that seems even more internal and fragile.

diff --git a/mercurial/utils/resourceutil.py b/mercurial/utils/resourceutil.py
--- a/mercurial/utils/resourceutil.py
+++ b/mercurial/utils/resourceutil.py
@@ -8,7 +8,7 @@
 # GNU General Public License version 2 or any later version.
 
 
-import imp
+import _imp
 import os
 import sys
 
@@ -24,7 +24,7 @@ def mainfrozen():
     return (
         pycompat.safehasattr(sys, "frozen")  # new py2exe
         or pycompat.safehasattr(sys, "importers")  # old py2exe
-        or imp.is_frozen("__main__")  # tools/freeze
+        or _imp.is_frozen("__main__")  # tools/freeze
     )
 
 

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