[m0dem]

Code:

def parse(equation) : operators = ["^", "*", "/", "%", "+", "-"] result = {} for op in operators[::-1] : if op in equation : result[op] = [ parse(equation[:equation.find(op)]), parse(equation[equation.find(op)+1:]) ] return result return equation.strip() print parse('3 + 4 * 5')

You can support more operators by adding them to the list
also it respect the mathematical order of precedence

Sweet!