[m0dem]

I just got bored in history, I'll take it seriously and finish it later.

Oh, that's no problem.
I really liked the way you did it btw.

[emad.shaaban92]

Code:

import operator as op ops={'+': op.add,'-': op.sub,'*': op.mul,'/': op.div,'^': op.pow,'%': op.mod} def parse(equation) : operators = ["^", "*", "/", "%", "+", "-"] result = {} for op in operators[::-1] : if op in equation : result['operator'] = op result['operands'] = [ parse(equation[:equation.find(op)]), parse(equation[equation.find(op)+1:]) ] return result return equation.strip() def evaluate(equation): parsed = parse(equation) def _eval(parsed_eq) : if type(parsed_eq) is str and parsed_eq.isdigit() : return int(parsed_eq) else : operator = parsed_eq['operator'] operands = parsed_eq['operands'] return ops[operator](_eval(operands[0]), _eval(operands[1])) return _eval(parsed) exp = '3 + 4 * 5' print parse(exp) print evaluate(exp)

[m0dem]

Code:

import operator as op ops={'+': op.add,'-': op.sub,'*': op.mul,'/': op.div,'^': op.pow,'%': op.mod} def parse(equation) : operators = ["^", "*", "/", "%", "+", "-"] result = {} for op in operators[::-1] : if op in equation : result['operator'] = op result['operands'] = [ parse(equation[:equation.find(op)]), parse(equation[equation.find(op)+1:]) ] return result return equation.strip() def evaluate(equation): parsed = parse(equation) def _eval(parsed_eq) : if type(parsed_eq) is str and parsed_eq.isdigit() : return int(parsed_eq) else : operator = parsed_eq['operator'] operands = parsed_eq['operands'] return ops[operator](_eval(operands[0]), _eval(operands[1])) return _eval(parsed) exp = '3 + 4 * 5' print parse(exp) print evaluate(exp)

I like it!