Question

What is the difference between the two classes below? Do you have some related information about this case? Thank you very much.

class test(object):
  def __init__(self, name):
     print name

class test():
  def __init__(self, name):
     print name

Answer 1

In python 2.x, the class that inherits from object will be a new-style class, while the other won’t, while in python 3.x there’ll be both new-style.

However, the differences between new and old are rather advanced, (for example, attribute search order) so a beginner shouldn’t be too concerned about the incompatibilities.

See this answer for more information if you’re interested, but it’s rather a thing for library developers etc.