Difference between class foo, class foo () and class foo (object)?

Question

I noticed that all 3 → class foo, class foo()and class foo(object)can be used, but I'm confused as to what is the difference between these 3, if any? (I mean mostly properties python3)

Answer 1

Let me break them down:

• class foo:

  • Python 3: This is usually the way to go. By default, Python adds objectas a base class for you.
  • Python 2: it creates an old style classobjthat will cause you all kinds of headaches.

• class foo():

  • Python 3 Python 2: class foo Python, , .
• class foo(object):
  • Python 3 Python 2: Pythons , , . , Python 2, , Python 2 3 ( ).