#leetcode

a_to_i.py

class Solution:
    def myAtoi(self, s: str) -> int:
        s = s.strip()
        
        if not s:
            return 0
        
        sign = 1
        
        if s[0] == "-" or s[0] == "+":
            
            if s[0] == "-":
                sign = -1
            s = s[1:]
        
        
            
        new_s = ""
            
        for c in s:
            if c.isdigit():
                new_s += c
            else:
                break
        
        digit = 0
        
        try:
            digit += sign * int(new_s)
        except:
            print(f"'{new_s}' not a number")
        
        
        if digit <= -2147483648:
            return -2147483648
        
        if digit >= 2147483647:
            return 2147483647
        
        return digit