Where is the help function defined?

[Emile van Sebille]

On 6/21/2010 10:17 AM Peng Yu said...
> help(help) gives me the following explanation.

<snip>

> I then looked at pydoc site. But I don't see an entry on help(). How
> to figure out where help() (or a function in general) is defined?

ActivePython 2.4.1 Build 247 (ActiveState Corp.) based on
Python 2.4.1 (#65, Jun 20 2005, 17:01:55) [MSC v.1310 32 bit (Intel)] on 
win32
Type "help", "copyright", "credits" or "license" for more information.
 >>> dir(help)
['__call__', '__class__', '__delattr__', '__dict__', '__doc__', 
'__getattribute__', '__hash__', '__init__', '__module__', '__new__',
  '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__str__', 
'__weakref__']
 >>> help.__module__
'site'
 >>> import site
 >>> dir (site)
['_Helper', '_Printer', '__builtin__', '__builtins__', '__doc__', 
'__file__', '__name__', '_init_pathinfo', '_test', 'abs__file__',
'addbuilddir', 'addpackage', 'addsitedir', 'addsitepackages', 
'aliasmbcs', 'execsitecustomize', 'main', 'makepath', 'os', 'removedup
paths', 'setBEGINLIBPATH', 'setcopyright', 'setencoding', 'sethelper', 
'setquit', 'sys']
 >>> site.__file__
'C:\\Python24\\lib\\site.pyc'
 >>>


HTH,

Emile