Who Can Tell Me What Can Call The Built-in Functions In Next Code

i know some of this,ex. __mod__ will be call / __eq__will be call == > and < but i don't know all. def __nonzero__(self): # an image is 'true' if it contains at

Solution 1:

Section 3.4 of the Python Language Reference covers the magic methods.

Solution 2:

See the Special Method Names section in the reference manual, including Basic Customization and Emulating Numeric Types.

Solution 3:

__mod__ is called for %, not for / as you state:

>>> class x(int):
...   def __mod__(self, y):
...     print '__mod__(%s, %s)' % (self, y)
...     return int.__mod__(self, y)
... 
>>> a = x(23)
>>> a / 4
5
>>> a % 4
__mod__(23, 4)
3
>>> 

Make and use similar toy classes to clarify any doubt you may have about a special method, if any are left after you read the docs.