docs: def extract_version(path):
      """
      Reads the file at the specified path and returns the version contained in it.
  
      This is meant for reading the __init__.py file inside a package, and so it
      expects a version field like:
  
      __version__ = '1.0.0'
  
      :param path: path to the Python file
      :return: the version inside the file
      """
  
      # Regular expression for the version
      _version_re = re.compile(r'__version__\s+=\s+(.*)')
  
      with open(path + '__init__.py', 'r', encoding='utf-8') as f:
          version = f.read()
  
      if version:
          version = _version_re.search(version)
          if version:
              version = version.group(1)
              version = str(ast.literal_eval(version.rstrip()))
              extracted = version
          else:
              extracted = None
      else:
          extracted = None
  
      return extracted