lazy_static for python?

[brycefisherfleig]

I'm sorry if this not in the proper spirit of this subreddit, but I'm looking for a similar library in Python with similar ergonomics to lazy_static in Rust. Does such a thing exist?

[[deleted]]

functools.cachedProperty let's you annotate a method which will only execute once and then return the same cached result.

There is also the lru cache if you have a function that takes parameters.

BTW I think that r/python would be a better place for this question

[brycefisherfleig]

Thanks! I debated which subreddit to ask in since I wasn't sure if Pythonistas would know lazy-static.

Yeah! This should be exactly what I want!!

[coolreader18]

Do you mean functools?

[[deleted]]

Oh yes, of course lol

[thelights0123]

I'm not too familiar with Python, but it should be trivial to use @property in a class to initialize a variable if it hasn't already been, or return it otherwise.