Here's some Python demonstrating introspection: the function ls takes and object and spits out the keys from its class dictionary, containing a list of methods for that object. Below: list and string objects spill their guts:

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def ls(obj): ... return getattr(obj.__class__,'__dict__').keys() ... ls([]) ['sort', '__ne__', '__getattr__', '__getslice__', '__delitem__', '__mul__', '__str__', '__getitem__', 'pop', '__class__', '__setitem__', '__iadd__', '__add__', '__gt__', '__rmul__', '__lt__', '__ge__', '__eq__', 'append', '__imul__', 'extend', 'insert', '__setattr__', 'reverse', '__contains__', 'index', '__setslice__', 'count', 'remove', '__delattr__', '__le__', '__init__', '__hash__', '__new__', '__len__', '__repr__'] ls('s') ['upper', '__getslice__', '__ne__', 'lstrip', '__str__', 'replace', 'isdigit', 'endswith', 'splitlines', 'rfind', 'strip', '__rmul__', '__lt__', 'ljust', 'find', '__init__', 'index', '__setattr__', '__new__', 'isalnum', '__contains__', 'rindex', '__eq__', '__class__', '__getattr__', 'decode', 'isalpha', 'split', 'rstrip', 'encode', 'translate', 'istitle', '__len__', '__mul__', 'startswith', '__getitem__', 'rjust', 'swapcase', 'islower', '__add__', '__gt__', 'capitalize', 'count', 'lower', 'join', 'center', 'title', 'expandtabs', 'isspace', '__delattr__', '__le__', '__repr__', '__hash__', 'isupper', '__ge__']

Kirby