i18n/polib.LICENSE

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.

copyright (c) 2006-2010 David JEAN LOUIS

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