byoc.arithmetic_eval

byoc.arithmetic_eval(expr: str) → Union[int, float]

Evaluate the given arithmetic expression.

Parameters

expr – The expression to evaluate. The syntax is identical to python, but only int literals, float literals, binary operators (except left/right shift, bitwise and/or/xor, and matrix multiplication), and unary operators are allowed.

Returns

The value of the given expression.

Raises

• SyntaxError – If expr cannot be parsed for any reason.

• TypeError – If the expr argument is not a string.

• ZeroDivisionError – If expr divides by zero.

It is safe to call this function on untrusted input, as there is no way to construct an expression that will execute arbitrary code.