# Python2:
>>> True = False
>>> True
False
>>> True = 1
>>> True
1
>>> False = 'x'
>>> False
'x'
# Python3:
>>> True = False
File "", line 1
SyntaxError: can't assign to keyword
>>> True = 1
File "", line 1
SyntaxError: can't assign to keyword
>>> import keyword
>>> keyword.iskeyword('True')
True
>>> keyword.kwlist
['False', 'None', 'True', 'and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'try', 'while', 'with', 'yield']