File "/usr/local/bin/irsx", line 11, in <module>
sys.exit(main())
File "/usr/local/lib/python3.6/site-packages/irsx/irsx_cli.py", line 107, in main
run_main(args_read)
File "/usr/local/lib/python3.6/site-packages/irsx/irsx_cli.py", line 93, in run_main
verbose=args_read.verbose
File "/usr/local/lib/python3.6/site-packages/irsx/xmlrunner.py", line 101, in run_filing
this_filing.process(verbose=verbose)
File "/usr/local/lib/python3.6/site-packages/irsx/filing.py", line 168, in process
self._set_version()
File "/usr/local/lib/python3.6/site-packages/irsx/filing.py", line 71, in _set_version
self.version_string = self.raw_irs_dict['Return']['@returnVersion']
KeyError: 'Return'