code: def _find_vpath(self):
          
          with open(self.path, 'r') as file_handle:
  
              for count, line in enumerate(file_handle):
  
                  match = self.read_pattern.match(line)
                  if match:
  
                      return match.group(1), count
  
          return None, None
docs: Find the VIRTUAL_ENV path entry.