"TypeError: 'NoneType' object is not subscriptable" on all commands that list downloaded mods

[Antony Verros]

Description
All commands that list downloaded mods produce the following error:

Traceback (most recent call last):
  File "/Users/~/Library/Python/3.9/bin/rmm", line 8, in <module>
    sys.exit(run())
  File "/Users/~/Library/Python/3.9/lib/python/site-packages/rmm/cli.py", line 548, in run
    globals()[command](sys.argv, manager)
  File "/Users/~/Library/Python/3.9/lib/python/site-packages/rmm/cli.py", line 96, in wrapper_func
    func(*args, **kwargs)
  File "/Users/~/Library/Python/3.9/lib/python/site-packages/rmm/cli.py", line 413, in order
    tabulate_mod_or_wr(
  File "/Users/~/Library/Python/3.9/lib/python/site-packages/rmm/cli.py", line 188, in tabulate_mod_or_wr
    mod_list = [[n.packageid, n.name, n.author[:20], n.enabled] for n in mods]
  File "/Users/~/Library/Python/3.9/lib/python/site-packages/rmm/cli.py", line 188, in <listcomp>
    mod_list = [[n.packageid, n.name, n.author[:20], n.enabled] for n in mods]
TypeError: 'NoneType' object is not subscriptable

I have tested the following commands: list, enable, query, disable, order and they all produce the same error.
I have tested the following commands and they do work: config, sync, sort

It used to work fine...
It could be due to an update in python, but I think that somehow some mods is lacking one of the parameters you are looping over

Info
OS: MacOS 12.6
RMM: 1.0.14
RimWorld: 1.3.3387 rev674

[Antony Verros]

Nailed it down to which mod screws up the listing.
It is VE outposts. I think it might me because it has a list of Authors, instead of just one in the about.xml
<authors><li>legodude17</li><li>Oskar Potocki</li></authors>

[Antony Verros]

After some digging around, the issue is the lack of an <author> tag, as this mod has an <authors> tag instead. You can dismiss it as a mod error, since most use <author>, but <authors> is also acceptable per this wiki article

[Michael Ciociola]

I appreciate you taking the time to do the research and creating a patch.