这篇文章主要介绍python查内建函数的方法，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！

python中可以使用dir(__builtins__)方法查看所有内建函数。

示例：

dir(__builtins__)['ArithmeticError','AssertionError','AttributeError','BaseException','BlockingIOError','BrokenPipeError','BufferError','BytesWarning','ChildProcessError','ConnectionAbortedError','ConnectionError','ConnectionRefusedError','ConnectionResetError','DeprecationWarning','EOFError','Ellipsis','EnvironmentError','Exception','False','FileExistsError','FileNotFoundError','FloatingPointError','FutureWarning','GeneratorExit','IOError','ImportError','ImportWarning','IndentationError','IndexError','InterruptedError','IsADirectoryError','KeyError','KeyboardInterrupt','LookupError','MemoryError','ModuleNotFoundError','NameError','None','NotADirectoryError','NotImplemented','NotImplementedError','OSError','OverflowError','PendingDeprecationWarning','PermissionError','ProcessLookupError','RecursionError','ReferenceError','ResourceWarning','RuntimeError','RuntimeWarning','StopAsyncIteration','StopIteration','SyntaxError','SyntaxWarning','SystemError','SystemExit','TabError','TimeoutError','True','TypeError','UnboundLocalError','UnicodeDecodeError','UnicodeEncodeError','UnicodeError','UnicodeTranslateError','UnicodeWarning','UserWarning','ValueError','Warning','WindowsError','ZeroDivisionError','__IPYTHON__','__build_class__','__debug__','__doc__','__import__','__loader__','__name__','__package__','__spec__','abs','all','any','ascii','bin','bool','breakpoint','bytearray','bytes','callable','chr','classmethod','compile','complex','copyright','credits','delattr','dict','dir','display','divmod','enumerate','eval','exec','filter','float','format','frozenset','get_ipython','getattr','globals','hasattr','hash','help','hex','id','input','int','isinstance','issubclass','iter','len','license','list','locals','map','max','memoryview','min','next','object','oct','open','ord','pow','print','property','range','repr','reversed','round','set','setattr','slice','sorted','staticmethod','str','sum','super','tuple','type','vars','zip']

dir()函数不带参数时，返回当前范围内的变量、方法和定义的类型列表；带参数时，返回参数的属性、方法列表。如果参数包含方法__dir__()，该方法将被调用。如果参数不包含__dir__()，该方法将最大限度地收集参数信息。

语法

dir 语法：

dir([object])

参数说明：

object -- 对象、变量、类型。

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