How To Check If The User Input Is A String In Python 3

I wrote the code below: try: nums=input('Write a name:') print (nums) except ValueError: print ('You didn't type a name') The problem is that even the user enter a nu

Solution 1:

You can use the function yourstring.isalpha() it will return true if all characters in the string are from the alphabet. So for your example:

nums = input("write a name:")
if(not nums.isalpha()):
    print("you did not write a name!")
    return
print(nums)

Solution 2:

You can use the builtin Python function type() to determine the type of a variable.

Solution 3:

You can use regex like this example:

import re

while True:
    try:
        name = input('Enter your name: ')
        validate = re.findall(r'^[a-zA-Z]+$', name)
        if not validate:
            raise ValueError
        else:
            print('You have entered:', validate[0])
            break
    except ValueError:
        print('Enter a valid name!')