crashes on slow small/empty hitlist from EPMC in GoogleColab

[petermr]

I ran the pygetpapers in GoogleColab

!pygetpapers -q "sealevel rise in Fenland" -k 10 -o "carbon_emi" -p

It was very slow (I think at EPMC) and finally gave

Traceback (most recent call last):
  File "/usr/local/bin/pygetpapers", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.10/dist-packages/pygetpapers/pygetpapers.py", line 537, in main
    callpygetpapers.create_argparser()
  File "/usr/local/lib/python3.10/dist-packages/pygetpapers/pygetpapers.py", line 530, in create_argparser
    self.runs_pygetpapers_for_given_args(self.query_namespace)
  File "/usr/local/lib/python3.10/dist-packages/pygetpapers/pygetpapers.py", line 312, in runs_pygetpapers_for_given_args
    api_handler.check_query_logic_and_run()
  File "/usr/local/lib/python3.10/dist-packages/pygetpapers/pygetpapers.py", line 204, in check_query_logic_and_run
    self.api.apipaperdownload(self.query_namespace)
  File "/usr/local/lib/python3.10/dist-packages/pygetpapers/repository/europe_pmc.py", line 324, in apipaperdownload
    self.run_eupmc_query_and_get_metadata(
  File "/usr/local/lib/python3.10/dist-packages/pygetpapers/repository/europe_pmc.py", line 289, in run_eupmc_query_and_get_metadata
    metadata_dictionary = self.query(
  File "/usr/local/lib/python3.10/dist-packages/pygetpapers/repository/europe_pmc.py", line 114, in query
    totalhits = retrieved_metadata_dictionary[RESPONSE_WRAPPER][HITCOUNT]
KeyError: 'responseWrapper'