How to convert a negative number to positive?
How can I convert a negative number to positive in Python? (And keep a positive one.)
>>> n = -42
>>> -n # if you know n is negative
42
>>> abs(n) # for any n
42
Don't forget to check the docs.
simply multiplying by -1 works in both ways ...
>>> -10 * -1
10
>>> 10 * -1
-10
If "keep a positive one" means you want a positive number to stay positive, but also convert a negative number to positive, use abs():
>>> abs(-1)
1
>>> abs(1)
1