[GitHub] [buildstream] germinolegrand commented on issue #1758: bst1: Seems buildstream is not compatible with python 3.11

[GitBox <gi...@apache.org>]

germinolegrand commented on issue #1758:
URL: https://github.com/apache/buildstream/issues/1758#issuecomment-1345515931

   For people like me with bst1 in Fedora 37 and python 3.11 ; i fixed buildstream/element.py with the following:
   
   buildstream/element.py:2370
   ```python
       def __file_is_whitelisted(self, path):
           # Considered storing the whitelist regex for re-use, but public data
           # can be altered mid-build.
           # Public data is not guaranteed to stay the same for the duration of
           # the build, but I can think of no reason to change it mid-build.
           # If this ever changes, things will go wrong unexpectedly.
           if not self.__whitelist_regex:
               bstdata = self.get_public_data('bst')
               whitelist = _yaml.node_get(bstdata, list, 'overlap-whitelist', default_value=[])
               whitelist_expressions = [
                   utils._glob2re(
                       self.__variables.subst(
                           exp.strip(),
                           _yaml.node_get_provenance(bstdata, key='overlap-whitelist', indices=[index])
                       )
                   )[5:] # FIX Skip flags "(?ms)" to avoid "global flags not at the start of the expression at position 4"
                   for index, exp in enumerate(whitelist)
               ]
               expression = ('^(?:' + '|'.join(whitelist_expressions) + ')$')
               self.__whitelist_regex = re.compile(expression, flags=re.M|re.S) # FIX Add global flags
           return self.__whitelist_regex.match(path) or self.__whitelist_regex.match(os.path.join(os.sep, path))
   ```
   
   This allowed me to open my dev_shell successfully.


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