The difference between "320" Python 2.x and 3.x

Through the code porting the error to comb!

1. The difference between print functions

In Python 2.x, you can add spaces or parentheses, but Python 3.x can only be parentheses.

# python 2.x>>> print "processing ..." processing...>>> print ("Processing ...") processing...# python 3.x>>> print ("Processing ...") processing ...

2. Raw_input and input functions

Python 2.x raw_input is similar to the input function in Python 3.x, while the input function in Python 2.x receives a number or a quoted string

# Python 2.x>>> a = Raw_input ("value:") value:alex>>> a ' Alex ' >>> b = input ("value:") Value: "A Lex ">>> B ' Alex ' # Python 3.x>>> a = input (" Value: ") value:alex>>> a ' Alex '

Reference: Differences between raw_input () and input () in python2.x and python3.x

3. Tkinter Module

Python 2.x is Tkinter, but Python 3.x is Tkinter (lowercase)

# python 2.x>>> import tkinter# python 3.x>>> import Tkinter

Reference: Python GUI programming (Tkinter)

4. Division operator

Python 2.x in////are all divisible, but Python 3.x in/representation divided by//means divisible

# python 2.x>>> 77/601>>> 77//601# python 3.x>>> 77/601.2833333333333334>>> Int (77 /60) 1>>> 77//601

The difference between "320" Python 2.x and 3.x