Question

Python eval is quite slow. I need to evaluate simple boolean expression with logical operators (like “True or False”). I am doing this for thousands of line of data and eval is a huge bottleneck in terms of performance. It’s really slow.. Any alternative approaches?

I tried creating a dict of possible expression combinations and their expected output, but this is really ugly!

I have the following code at the moment:

eval('%s %s %s' % (True, operator, False))

Answer 1

import operator
ops = { 'or': operator.or_, 'and': operator.and_ }
print ops[op](True, False)