Detect whether a Python string is a number or a letter

Question

How can I detect either numbers or letters in a string? I am aware you use the ASCII codes, but what functions take advantage of them?

Answer 1

For checking whether a Python string is a number or a letter you can use the below-mentioned code:-

def isinteger(a): 

try: 

int(a) 

return True 

except ValueError: 

return False