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Why Is Python So Popular in 2025? (blog.jetbrains.com)
submitted 2 months ago by namingthingsiseasy@programming.dev to c/programming@programming.dev
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[-] Feyd@programming.dev 2 points 2 months ago

In my opinion, the biggest shortcoming of Python’s dynamic typing system is that you need to have very thorough test coverage to be sure that your code doesn’t have semantic errors

That is a large shortcoming.

[-] namingthingsiseasy@programming.dev 2 points 2 months ago

Sure, but as with all things, it can depend on a lot of factors. All code needs some degree of testing, though one could certainly argue that Python needs more than Java and Java needs more than Rust/Haskell/etc. So you could argue that the productivity gain of using Python is offset by the productivity loss of extra testing. It's still hard to say which one wins out in the end.

[-] Feyd@programming.dev 7 points 2 months ago* (last edited 2 months ago)

People underestimate the cost of testing.

  1. It has to actually happen to be effective and is something that can be dropped under time pressure where something built into the language cannot.
  2. Test code is also code that is not guaranteed to be correct, and also incurs it's own maintenance tolls

Removing the need for entire classes of tests cases is a huge win

this post was submitted on 02 Oct 2025
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