leval

from leval.simple import evaluate # Basic evaluation with context expression_1 = "x * (y + 2)" context_1 = {"x": 5, "y": 3} result_1 = evaluate(expression_1, **context_1) print(f"'{expression_1}' with context {context_1} evaluates to: {result_1}") # Evaluation with string methods and built-in functions expression_2 = "s.upper() + ' WORLD!' if len(s) > 5 else s.lower()" context_2 = {"s": "hello"} result_2 = evaluate(expression_2, **context_2) print(f"'{expression_2}' with context {context_2} evaluates to: {result_2}") # Explicitly opting out of loose 'is/is not' behavior introduced in v1.2.0 # For example, '0 is False' would evaluate to True with default 'loose_is_is_not=True' expression_3 = "my_value is None" context_3 = {"my_value": 0} result_3_loose = evaluate(expression_3, **context_3) result_3_strict = evaluate(expression_3, loose_is_is_not=False, **context_3) print(f"'{expression_3}' (0 is None) with loose_is_is_not (default): {result_3_loose}") print(f"'{expression_3}' (0 is None) with loose_is_is_not=False: {result_3_strict}")