Why does
1.__add__(1)
yield SyntaxError: invalid syntax? What do the extra brackets add?
(1).__add__(1)
Why does 1.__add__(1) yield SyntaxError: invalid syntax ? What do the extra brackets add?
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Why does
1.__add__(1)
yield SyntaxError: invalid syntax? What do the extra brackets add?
(1).__add__(1)
This is an effect of the tokenizer:
1.__add__(1)is split into the tokens"1.","__add__","(","1", and")", since the tokenizer always tries to built the longest possible token. The first token is a floating point number, directly followed by an identifier, which is meaningless to the parser, so it throws aSyntaxError.Simply adding a space before the dot will make this work: