CODEWITHSUNDEEP
pythonvariablespython-2.7boolean
kmario23
kmario23

Reputation: 61355

True - False dilemma

I can't understand what is happening here? 

True = False
False = True
print True, False

output

False False

Isn't the output be printed as False True?

Upvotes: 0

Views: 105

Answers (3)

sshashank124
sshashank124

Reputation: 32189

Once you do True = False, True is no longer a boolean but rather a variable that has been assigned the boolean False. Therefore, the line False = True is actually assigning True's value (False) to the variable False.

Upvotes: 1

devnull
devnull

Reputation: 123498

You seem to be using Python 2.

This wouldn't work in Python 3 as True and False were changed to keywords in order to make assignment to those impossible.

Refer to Core Language Changes:

Make True and False keywords. [6]

Reason: make assignment to them impossible.

Upvotes: 3

will
will

Reputation: 10650

You are setting True = False, and then False = True. 

True = False
False = True # But "True" here is now False.
print True, False # True = False, because of the first line. As does False, because you set it equal to "True" which you have already made == False.

I don't know why you would ever want to do this, other than to mess with someone's code, as it's a readability nightmare - as you can see just from the difficulty in using the words to explain it.

If you really want to swap the vaules around, then do:

True, False = False, True

Upvotes: 8

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