Analysis of the Role of the comma after the Python value assignment statement, and the python value assignment statement comma

Analysis of the Role of the comma after the Python value assignment statement, and the python value assignment statement comma

This example describes the role of a comma after a value assignment statement in Python. Share it with you for your reference. The specific analysis is as follows:

IDLE 2.6.2

>>> A = 1 >>> B = 2, >>> print type (a) <type 'int' >>>> print type (B) <type 'tuple' >>>> c = [] >>>> d = [], >>> print type (c) <type 'LIST' >>> print type (d) <type 'tuple'>

After a comma is added to the value expression, a tuple object is automatically generated. Expected results cannot be obtained when type-related work or serialization is required. When you encounter a similar spirit phenomenon in your work, you can put this in your own checklist.

>>> Print c [] >>> print d ([],) >>> print a1 >>> print B (2 ,)

I hope this article will help you with Python programming.