Python, mathematic operations on variables

Question

In python 3 I was wondering if there was a way to get a variable from an input like this:

x = input("-> ")

And if x was this:

x = "1 + 10"

Is there a way to perform this operation and return it as a different variable?

Answer 1

You can use eval to evaluate the mathematical expression inside the variable like so.

In [1]: x = "1 + 10" 
In [2]: eval(x) 
Out[2]: 11