Well the way I mostly solve it is by using the cache from docker. As well as versioning important packages. As well as multiple requirements files. However, i

Well the way I mostly solve it is by using the cache from docker. As well as versioning important packages. As well as multiple requirements files. However, i feel like if with every small change to your libraries your code breaks there would be something wrong haha. Also I'm not saying it's a perfect solutions. Only that I had a lot of python apps this was never any issue (an d I had a lot of issues) If you are building a library though, i totally get the point of using