Hi @VisshnuVandithG,
I’m afraid that even though the developer uses the Atlassian logo on his GitHub repository (atlassian-api · GitHub), this is not an official Atlassian library.
You might have more luck creating an issue on the GitHub repository here: Issues · atlassian-api/atlassian-python-api · GitHub
Looking at the already 33 open issues, you might also want to consider using alternative ways to connect to the Atlassian API (it’s just a REST API, you don’t really need wrappers).
Cheers,
Remie