dir command in Python

There is a quite useful command in python to introspect a particular object or module.
Pass any object or module to dir function, which is a built-in function. Yes, you can access it from Python interpreter.


>>> a = []
>>> dir(a)

results:
['__add__', '__class__', '__contains__', '__delattr__', '__delitem__', '__delslice__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getslice__', '__gt__', '__hash__', '__iadd__', '__imul__', '__init__', '__iter__', '__le__', '__len__', '__lt__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__reversed__', '__rmul__', '__setattr__', '__setitem__', '__setslice__', '__sizeof__', '__str__', '__subclasshook__', 'append', 'count', 'extend', 'index', 'insert', 'pop', 'remove', 'reverse', 'sort']

Quite simple, yet powerful.

also, try this interesting stuff, philosophy of python on “this”
import this

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