`SyntaxError` when trying to run `lib_ver_producer.py`

[astrojuanlu]

Tried to follow the README instructions, with no luck:

juanlu@valinor ~/P/O/SnifferDog (master)> git show --stat
commit 2a855ec14dcca4d8b939284dd4f70e75a9518f26 (HEAD -> master, origin/master, origin/HEAD)
Author: Jarvx <jiawei.wang1@monash.edu>
Date:   Fri Jan 27 14:25:56 2023 +1100

    Update README.md

 README.md | 2 ++
 1 file changed, 2 insertions(+)
juanlu@valinor ~/P/O/SnifferDog (master)> python3.7 lib_ver_producer.py
  File "lib_ver_producer.py", line 184
    else:
       ^
SyntaxError: invalid syntax

I'm happy to contribute a fix but I see there's no license yet: gh-3

[Jarvx]

Thanks a lot for your interests. I have now added the license.