Python: TypeError: object of type 'NoneType' has no len()

Question

I am getting an error from this Python code:

with open(\'names\') as f:
    names = f.read()
    names = names.split(\'\\n\')
    names.pop(len(names) - 1)
    n         


        

Answer 1

I was faces this issue but after change object into str, problem solved. str(fname).isalpha():