How to sort a list of strings numerically?

Question

I know that this sounds trivial but I did not realize that the sort() function of Python was weird. I have a list of \"numbers\" that are actually in string for

Answer 1

You could pass a function to the key parameter to the .sort method. With this, the system will sort by key(x) instead of x.

list1.sort(key=int)

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BTW, to convert the list to integers permanently, use the map function

list1 = list(map(int, list1))   # you don't need to call list() in Python 2.x

or list comprehension

list1 = [int(x) for x in list1]