Native Python function to remove NoneType elements from list?

Question

I\'m using Beautiful Soup in Python to scrape some data from HTML files. In some cases, Beautiful Soup returns lists that contain both string and NoneType

Answer 1

For those who came here from Google

In Python3 you can implement this using .__ne__ dunder method (or 'magic method' if you will):

>>> list1 = [0, 'foo', '', 512, None, 0, 'bar']
>>> list(filter(None.__ne__, list1))
[0, 'foo', '', 512, 0, 'bar']

This is how it works:

• None.__ne__(None) --> False

• None.__ne__(anything) --> NotImplemented

NotImplemented exeption effectively is True, e.g.:

>>> bool(None.__ne__('Something'))
True

As of the beginning of 2019, Python has no built-in function for filtering None values which avoids common pitfals with deleting zeroes, empty strings, etc.