What is a 'NoneType' object?

Question

I\'m getting this error when I run my python script:

TypeError: cannot concatenate \'str\' and \'NoneType\' objects

I\'m pretty sure the \'

Answer 1

Your error's occurring due to something like this:
>>> None + "hello world"
Traceback (most recent call last):
File "", line 1, in
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str' >>>

Python's None object is roughly equivalent to null, nil, etc. in other languages.