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Raknarg

Wed Jan 15, 2014 3:43 pm


[python] Something neat

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This didn't seem to fit anywhere in the python section, but apparently this is valid:

True = False

Now True will equate to False.


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Tony

Wed Jan 15, 2014 4:09 pm


RE:[python] Something neat

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although
[code]
>>> True = False
>>> print True
False
>>> print 1==1
True
[/code]


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Raknarg

Wed Jan 15, 2014 6:26 pm


RE:[python] Something neat

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How strange. Any idea how this is?


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Tony

Wed Jan 15, 2014 7:15 pm


RE:[python] Something neat

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there's a difference between "True" the variable and "True" the value. It kind of looks like there's a variable called True and it initially holds a value that has a string representation of "True".


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Raknarg

Wed Jan 15, 2014 7:16 pm


RE:[python] Something neat

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Right, I was thinking something along that, maybe it was a built in function that returns true


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Dreadnought

Wed Jan 15, 2014 7:34 pm


Re: [python] Something neat

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Right, I was thinking something along that, maybe it was a built in function that returns true

Not a function, its an object of type bool.The object has a value of True in expressions but as Tony says it has a string representation (what you see when you print it) of 'True'. 
You can see this
>>> int(True)
1
>>> type(True)

>>> type(True.__repr__())

>>> True.__repr__()
'True'


EDIT: Interesting note, True = False is illegal in python 3 (at least in my version). It seems that they are now keywords.


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Raknarg

Wed Jan 15, 2014 7:43 pm


RE:[python] Something neat

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Ah. Thanks for that.