如何在生成元组时获取它的索引？

Question

So, I'm instantiating a class several times using a tuple -- every tuple item is a class instance in the format

ClassName(argument 1, ... argument n)

Now, I'd like one of the arguments to be the index of the item in the tuple, but I don't know how to express that in Python. I tried using

my_tuple.index(ClassName)

but that didn't work. Any other ideas?

Answer 1

You can use a list comprehension.

tuple([ClassName(i, argument 2, ..., argument n) for i in range(however_many_you_want)])

This will create a list which will then be converted into a tuple. Here, the first argument is being used as the index in the tuple.