AttributeError: 'NoneType' object has no attribute 'read'

[archisman-panigrahi]

I installed doi2bib with pip in Ubuntu 24.04. It fails to run with the following error.

doi2bib
Traceback (most recent call last):
  File "/home/archisman/.local/bin/doi2bib", line 72, in <module>
    main()
  File "/home/archisman/.local/bin/doi2bib", line 55, in main
    dois = args[0].input.read()
           ^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'read'

[archisman-panigrahi]

I realized that this is not an error but the default response when no DOI is supplied. How about showing the output of doi2bib --help when the user runs doi2bib without any argument?