In Python, how do I remove the last tuple (None,) in a list? The list mixes with string and floats

Question

I have a Python list (mixed with string and values) like below:

mylist = [('Needie', 83, 55, 78, None), ('Blue', 80, 60, None, 66), ('Bloodnok', None, 54, 57, 59), (None,)]

The desired output should be:

newlist = [('Needie', 83, 55, 78, None), ('Blue', 80, 60, None, 66), ('Bloodnok', None, 54, 57, 59)]

What should I do to remove the last tuple (None,) in the list? Keep other tuples as before, includes names (string), None value and floats

del list[:-1]

Output:

[(None,)]