CODEWITHSUNDEEP
pythonapi
dspjm
dspjm

Reputation: 5830

What methods does an 'object' has in python?

As we can see here: http://docs.python.org/2/library/functions.html#object

Return a new featureless object. object is a base for all new style classes. It has the methods that are common to all instances of new style classes.

What methods specifically according to this? Where is the reference?

Upvotes: 2

Views: 82

Answers (2)

zhangxaochen
zhangxaochen

Reputation: 34007

do we have an API reference which will describe what each function will do, like many other languages?

Apart from reading the python docs/tutorials, you can use help to see the docstring of the methods/functions

In [443]: help(object.__hash__)
Help on wrapper_descriptor:

__hash__(...)
    x.__hash__() <==> hash(x)

If you're using the ipython interactive shell, simply use ? instead of help function:

In [446]: object.__hash__?
Type:       wrapper_descriptor
String Form:<slot wrapper '__hash__' of 'object' objects>
Namespace:  Python builtin
Docstring:  x.__hash__() <==> hash(x)

You can even use ?? to access the source of a function, e.g.:

In [454]: os.path.getsize??
Type:       function
String Form:<function getsize at 0x01C6DEF0>
File:       d:\anaconda\lib\genericpath.py
Definition: os.path.getsize(filename)
Source:
def getsize(filename):
    """Return the size of a file, reported by os.stat()."""
    return os.stat(filename).st_size

In [455]:

Upvotes: 1

DNA
DNA

Reputation: 42597

Use the dir() function to inspect a class or object:

>>> dir(object)
['__class__', '__delattr__', '__doc__', '__format__', '__getattribute__', 
 '__hash__',  '__init__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', 
 '__setattr__', '__sizeof__', '__str__', '__subclasshook__']

See also the Python Language Reference, which can be searched to find details on each of these special methods.

Upvotes: 2

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