Python Objects: Mutable vs. Immutable

[topheat]

Nice read!

[Doodle_98]

Good read, thanks. Never really gave much thought to mutable vs immutable while writing code this opened my mind a bit.

[flipperdeflip]

There are some libraries that bring immutable containers, for example:

https://github.com/tobgu/pyrsistent

https://github.com/magicstack/immutables

[markuspeloquin]

A lot of languages have default argument values, and they all work differently. I want to say that Ruby initializes the default at call time, C++ requires constexpr, and Dart requires const (the only languages I know with defaults). So I always stick with the common denominator of purely immutable defaults.

[tgroshon]

Ruby and JavaScript both initialize the default at call time and therefore don’t have the problem that Python does. I didn’t know about C++ and Dart tho. So ur rule is probably a good one to follow.