>>> import __builtin__
>>> dir(__builtin__)
[‘ArithmeticError‘, ‘AssertionError‘, ‘AttributeError‘, ‘BaseException‘, ‘Buffer
Error‘, ‘BytesWarning‘, ‘DeprecationWarning‘, ‘EOFError‘, ‘Ellipsis‘, ‘Environme
ntError‘, ‘Exception‘, ‘False‘, ‘FloatingPointError‘, ‘FutureWarning‘, ‘Generato
rExit‘, ‘IOError‘, ‘ImportError‘, ‘ImportWarning‘, ‘IndentationError‘, ‘IndexErr
or‘, ‘KeyError‘, ‘KeyboardInterrupt‘, ‘LookupError‘, ‘MemoryError‘, ‘NameError‘,
 ‘None‘, ‘NotImplemented‘, ‘NotImplementedError‘, ‘OSError‘, ‘OverflowError‘, ‘P
endingDeprecationWarning‘, ‘ReferenceError‘, ‘RuntimeError‘, ‘RuntimeWarning‘, ‘
StandardError‘, ‘StopIteration‘, ‘SyntaxError‘, ‘SyntaxWarning‘, ‘SystemError‘,
‘SystemExit‘, ‘TabError‘, ‘True‘, ‘TypeError‘, ‘UnboundLocalError‘, ‘UnicodeDeco
deError‘, ‘UnicodeEncodeError‘, ‘UnicodeError‘, ‘UnicodeTranslateError‘, ‘Unicod
eWarning‘, ‘UserWarning‘, ‘ValueError‘, ‘Warning‘, ‘WindowsError‘, ‘ZeroDivision
Error‘, ‘__debug__‘, ‘__doc__‘, ‘__import__‘, ‘__name__‘, ‘__package__‘, ‘abs‘,
‘all‘, ‘any‘, ‘apply‘, ‘basestring‘, ‘bin‘, ‘bool‘, ‘buffer‘, ‘bytearray‘, ‘byte
s‘, ‘callable‘, ‘chr‘, ‘classmethod‘, ‘cmp‘, ‘coerce‘, ‘compile‘, ‘complex‘, ‘co
pyright‘, ‘credits‘, ‘delattr‘, ‘dict‘, ‘dir‘, ‘divmod‘, ‘enumerate‘, ‘eval‘, ‘e
xecfile‘, ‘exit‘, ‘file‘, ‘filter‘, ‘float‘, ‘format‘, ‘frozenset‘, ‘getattr‘, ‘
globals‘, ‘hasattr‘, ‘hash‘, ‘help‘, ‘hex‘, ‘id‘, ‘input‘, ‘int‘, ‘intern‘, ‘isi
nstance‘, ‘issubclass‘, ‘iter‘, ‘len‘, ‘license‘, ‘list‘, ‘locals‘, ‘long‘, ‘map
‘, ‘max‘, ‘memoryview‘, ‘min‘, ‘next‘, ‘object‘, ‘oct‘, ‘open‘, ‘ord‘, ‘pow‘, ‘p
rint‘, ‘property‘, ‘quit‘, ‘range‘, ‘raw_input‘, ‘reduce‘, ‘reload‘, ‘repr‘, ‘re
versed‘, ‘round‘, ‘set‘, ‘setattr‘, ‘slice‘, ‘sorted‘, ‘staticmethod‘, ‘str‘, ‘s
um‘, ‘super‘, ‘tuple‘, ‘type‘, ‘unichr‘, ‘unicode‘, ‘vars‘, ‘xrange‘, ‘zip‘]

Python 的內建模塊