Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
91 views
in Technique[技术] by (71.8m points)

python - How to cache a function with both position and keyword parameters?

I have a function foo(a, b, c= False, d = 0), and I need to create a cache dict inside the function for each combination of the parameters.

The examples I have seen online only use *args, but I need to get the kwargs-values too, in the correct order, and store them in a cache dict, and handle the case that dicts cannot be keys, and kwargs is a dict.

So I did it like this: is this the way to go?

foo(*args, **kwargs):
     if (*args, *kwargs.values()) in cache:
         return cache[(*args, *kwargs.values())]

Basically I convert the kwargs to values (in the order of insertion since I am using Python3.6, which will be what I want) and then combine with *args to create a tuple.

question from:https://stackoverflow.com/questions/65642857/how-to-cache-a-function-with-both-position-and-keyword-parameters

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
Waitting for answers

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...