operator overloading on built-ins

[r.grimm]

Hallo,
could you explaint me the difference between the two following
statements.


Python 2.5 (r25:51908, Oct 7 2006, 23:45:05)
[GCC 3.3.5 20050117 (prerelease) (SUSE Linux)] on linux2
Type "help", "copyright", "credits" or "license" for more information. File "<stdin>", line 1
1.__cmp__(10)
^
SyntaxError: invalid syntax

The first works as expect, but the second.

Regards Rainer

 

[Steven Bethard]

-1

Integer object "(1)" followed by method call ".__cmp__(10)"

File "<stdin>", line 1
1.__cmp__(10)
^
SyntaxError: invalid syntax

Floating point number "1." followed by "__cmp__(10)".

STeVe

 

[Marc 'BlackJack' Rintsch]

-1

As the dot is an operator like ``+`` or ``/`` you can also add spaces to
avoid the ambiguity:

In [493]: 1 . __cmp__(10)
Out[493]: -1

In [494]: 1 .__cmp__(10)
Out[494]: -1

Ciao,
Marc 'BlackJack' Rintsch