[ComputerAnalysis]

Why is it possible to assign a value to the keywords True and False in Python? In particular the following code gives the keyword True the value False and suddenly I only have the value False to work with.

True = False

[andrewsw]

I can't do this in Python 3. But the question arises.. why would you want to?

In Javascript I can do things like window = null, but I don't really want to!?

This post has been edited by andrewsw: 29 December 2012 - 03:42 PM

[ComputerAnalysis]

This ran in Python 2.7.3. I completely agree that you would never want to do this, but I was showing someone some intro programming stuff and was shocked when she typed this in and Python allowed it.

[sepp2k]

In Python 2 True and False aren't keywords, they're ordinary variables. So that's the reason you can reassign them (as for why you'd want to: I have no idea).

In Python 3 they're keywords and can not be assigned to.

[BloodyInari]

>>> True = False
>>> True
False

>>> False = True
>>> False
True
>>> 

...wow.

This post has been edited by BloodyInari: 01 January 2013 - 08:27 AM