code: def init(log_level=ERROR):
      '''
      Enables explicit relative import in sub-modules when ran as __main__
      :param log_level: module's inner logger level (equivalent to logging pkg)
      '''
      global _initialized
      if _initialized:
          return
      else:
          _initialized = True
      # find caller's frame
      frame = currentframe()
      # go 1 frame back to find who imported us
      frame = frame.f_back
      _init(frame, log_levelf init(log_level=ERROR):
      '''
      Enables explicit relative import in sub-modules when ran as __main__
      :param log_level: module's inner logger level (equivalent to logging pkg)
      '''
      global _initialized
      if _initialized:
          return
      else:
          _initialized = True
      # find caller's frame
      frame = currentframe()
      # go 1 frame back to find who imported us
      frame = frame.f_back
      _init(frame, log_level)
docs: Enables explicit relative import in sub-modules when ran as __main__
      :param log_level: module's inner logger level (equivalent to logging pkg)