https://leetcode.com/problems/valid-number/

isNumber.py

class Solution:
    def isNumber(self, s: str) -> bool:
        
        isFloat = False
        for char in s:
            if char == "." or char == "e" or char == "E":
                isFloat = True
                break
        
        try:
            if isFloat: float(s)
            else: int(s)
                
            return True
        
        except:
            return False