Why doesn't 2.__add__(3) work in Python?
2. is parsed as a float, so 2.__add__ is a SyntaxError.
You can evaluate
(2).__add__(3) instead.
In [254]: (2).__add__(3)
Out[254]: 5
Another way to get around 2. being parsed as a float is to insert a space between the 2 and the .
>>> 2 .__add__(3)
5