I have built an app of over 500k sloc in Python. In retrospective, I feel the python as a language was a good choice, it helped us move very fast and do a lot

I have built an app of over 500k sloc in Python. In retrospective, I feel the python as a language was a good choice, it helped us move very fast and do a lot of things : - One good pythonner is very productive - It was easier to get someone aboard, it is easy to get python and to reasonnably efficient with it. - there are libraries for everything. - going to cython or c++ was always an easy alternative for those crtical part of the code. The only cases where python can be problematic are : - high reliability code like trains or planes software, because python code is not provable. - very high performance, where the slowness of python in the not critical part of code can be a problem. Besides, It doesn't protect you against the classic problems of a big codebase built by a different of people over a period of time. Tools like pynocle or pylint were good for this. So, in the end, python has obvious weakness. Most of the time It seems like a solid choice (among others). Right tools for the job, etc.