At my company we have several git branches from master representing different projects people are working on. I've written a small python file, call it companyLib.py, that appears in each of these branches as it contains commonly used functions that people like to call. As I make updates to companyLib.py, what is an easy way to push the new version to all branches containing the file so that everyone is calling the same, most up-to-date version?
I'm very new to git so it's unclear to me if there is a better way to manage many different branches that all contain one common file and then multiple unique files, where I want to make sure the common file remains consistent across all branches.