Question

How to extract all the numbers in a string?

For example, consider a string "66,55,66,57". I want to extract each numbers into separate variables and perform integer arithmetic.

Answer 1

You can use a list comprehension along with str.split to break up the string and convert it to integers:

>>> string  = "66,55,66,57"
>>> numbers = [int(x) for x in string.split(",")]

>>> print numbers
[66, 55, 66, 57]

Then you can do whatever you want with that list. For example:

>>> sum(numbers)
244