> As someone who's worked on a huge Python program (10M+ LOC) Holy moly. I can't imagine working on a codebase like this in Python. I maintain several small c

> As someone who's worked on a huge Python program (10M+ LOC) Holy moly. I can't imagine working on a codebase like this in Python. I maintain several small codebases (<10k LOC) at work. Even at this size, I definitely feel the lack of type safety -- specifically, at the boundaries of logical blocks of code. When refactoring, the lack of thorough type-checking means that I need to mentally propagate my changes throughout the codebase. This is exhausting!