Is it important to have few imports in the code?

Question

Python

And is it true that if there are fewer imports, is it faster to run the code?

Answer 1

You need to have exactly as many imports as your code needs. Obviously, if you don't import the library you're using, then the code won't run. Obviously it makes no sense to import something that is not used.
Yes, it's true that imports affect startup speed. Each imported script must be read from disk, parsed, interpreted, objects of data loaded from it must be created in memory, etc.