Analysis of the function of comma after Python assignment statement

This example describes the role of commas after Python assignment statements. Share to everyone for your reference. The specific analysis is as follows:

IDLE 2.6.2

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>>> 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 appended to an assignment expression, an tuple object is automatically obtained, and the desired result is not obtained when doing some type-related work or requiring serialization. You can put this into your own checklist when you encounter something like a supernatural phenomenon in your work.

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>>> print C [] >>> print D ([],) >>> print a 1 >>> print B (2,)

I hope this article will help you with your Python programming.