Why does this python code have a syntax error?

Question

To practice python, I made a simple class for a tree structure in which each node can have infinite child nodes.

class Tree():

  def __init__(self, children         


        

Answer 1

In Python 2 print is a keyword, so you can't use it as the name of a function or method.

Answer 2

In Python 2.7 (and maybe other versions) you can override the print statement with a print function and than override that function.

To do that you have to add

from __future__ import print_function

as the first line of your file.

Answer 3

In Python 2 print is a reserved word and cannot be the name of a variable or method or function.