code: def find_sources(self):
          
          app_configs = apps.get_app_configs()
          for app_config in app_configs:
              ignore_dirs = []
              for root, dirs, files in os.walk(app_config.path):
                  if [True for idir in ignore_dirs if root.startswith(idir)]:
                      continue
                  if '__init__.py' not in files:
                      ignore_dirs.append(root)
                      continue
                  for filename in files:
                      basename, ext = os.path.splitext(filename)
                      if ext != '.py':
                          continue
                      yield os.path.abspath(os.path.join(root, filename))
docs: Look for Python sources available for the current configuration.