leetcode08

import re
class (object):
    def myAtoi(self, str):
        """
        :type str: str
        :rtype: int
        """
        try:
            MAX_INT = 2147483647
            MIN_INT = -2147483648
            if str == "":
                return 0
            str = str.strip()
            str = re.findall('(^[+-0]*d+)',str)
            result = int(str[0])
            if result > MAX_INT:
                return MAX_INT
            elif result < MIN_INT:
                return MIN_INT
            else:
                return result
        except ValueError:
            return 0
        except IndexError:
            return 0
if __name__ == '__main__':
    solution = Solution()
    print(solution.myAtoi('+'))