[deeteecee]

im not an expert but i think you can just do the first-order dependencies on requirements.txt and then do a pip freeze with constraints.txt and do `pip install -r requirements.txt -c constraints.txt`. that'll make you both happy.

Before constraints.txt came into play, I would've done what you said with pip freeze. With only first-order dependencies, that sounds more likely to break at some point due to the other potential version changes. I think your colleague needs to explain why things are breaking in his case.