Question

How do I execute a statement dynamically in Python?

For ex: assume the value x contains the following expression, (a+b)/2,

a = 1
b = 3
x = (a+b)/2

The value for x will be from a table

Answer 1

Probably you want eval

#!/usr/bin/env python

a = 1
b = 3
x = "(a+b)/2"
print eval(x)

But it’s usually considered a bad practice (click here for a more elaborate and funnier explanation)