A python expression evaluate library

Installation

pip install pyexpr

Usage

• Simple evaluation

assert pyexpr.evaluate('1 + 2 * (3 - 4) **2') == 3

• With functions

assert pyexpr.evaluate('1 + 2 * (3 - 4) ** sqrt(4)', builtins=dict(sqrt=math.sqrt)) == 3

• With variables

assert pyexpr.evaluate('1 + 2 * (3 - 4) ** X', variables=dict(X=4)) == 3

You can find more examples in test.py