["python","string","integer"]
How can I check if a string represents an int, without using try/except?

Is there any way to tell whether a string represents an integer (e.g., '3', '-17' but not '3.14' or 'asfasfas') Without using a try/except mechanism? is_int('3.14') == False is_int('-7') == True
If you're really just annoyed at using try/excepts all over the place, please just write a helper function: def represents_int(s): try: int(s) except ValueError: return False else: return True >>> print(represents_int("+123")) True >>> print(represents_int("10.0")) False It's going to be WAY more code to exactly cover all the strings that Python considers integers. I say just be pythonic on this one.