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How to view built-in functions in python

爱喝马黛茶的安东尼Original: 2019-06-25 16:44:175258browse

Built-in functions are generally provided in the form of built-in functions because they are used frequently or are meta-operations. Through the classification analysis of python’s built-in functions, we can see that basic data operations are basically some mathematics. Operations (except addition, subtraction, multiplication and division, of course), logical operations, set operations, basic IO operations, and then the reflection operations of the language itself, and string operations, which are also commonly used, especially reflection operations.

#The Python interpreter has many built-in functions and types that you can use at any time. They are listed below in alphabetical order.

How to view built-in functions in python

When I often call it, I don’t know what the built-in functions of the current version of Python are. You can use the following command to check:

Related recommendations:《 Python video tutorial》

C:\Users\Administrator>python
Python 2.7.11 (v2.7.11:6d1b6a68f775, Dec  5 2015, 20:32:19) [MSC v.1500 32 bit (
Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> dir(sys.modules[&#39;__builtin__&#39;])
[&#39;ArithmeticError&#39;, &#39;AssertionError&#39;, &#39;AttributeError&#39;, &#39;BaseException&#39;, &#39;BufferError&#39;, &#39;BytesWarning&#39;,
 &#39;DeprecationWarning&#39;, &#39;EOFError&#39;, &#39;Ellipsis&#39;, &#39;EnvironmentError&#39;, &#39;Exception&#39;, &#39;False&#39;, &#39;FloatingPointError&#39;,
 &#39;FutureWarning&#39;, &#39;GeneratorExit&#39;, &#39;IOError&#39;, &#39;ImportError&#39;, &#39;ImportWarning&#39;, &#39;IndentationError&#39;, &#39;IndexError&#39;,
 &#39;KeyError&#39;, &#39;KeyboardInterrupt&#39;, &#39;LookupError&#39;, &#39;MemoryError&#39;, &#39;NameError&#39;,&#39;None&#39;, &#39;NotImplemented&#39;,
 &#39;NotImplementedError&#39;, &#39;OSError&#39;, &#39;OverflowError&#39;, &#39;PendingDeprecationWarning&#39;, &#39;ReferenceError&#39;, &#39;RuntimeError&#39;,
 &#39;RuntimeWarning&#39;, &#39;StandardError&#39;, &#39;StopIteration&#39;, &#39;SyntaxError&#39;, &#39;SyntaxWarning&#39;, &#39;SystemError&#39;,&#39;SystemExit&#39;, 
 &#39;TabError&#39;, &#39;True&#39;, &#39;TypeError&#39;, &#39;UnboundLocalError&#39;, &#39;UnicodeDecodeError&#39;, &#39;UnicodeEncodeError&#39;, &#39;UnicodeError&#39;,
 &#39;UnicodeTranslateError&#39;, &#39;UnicodeWarning&#39;, &#39;UserWarning&#39;, &#39;ValueError&#39;, &#39;Warning&#39;, &#39;WindowsError&#39;,
 &#39;ZeroDivisionError&#39;, &#39;__debug__&#39;, &#39;__doc__&#39;, &#39;__import__&#39;, &#39;__name__&#39;, &#39;__package__&#39;, &#39;abs&#39;,&#39;all&#39;, &#39;any&#39;, 
 &#39;apply&#39;, &#39;basestring&#39;, &#39;bin&#39;, &#39;bool&#39;, &#39;buffer&#39;, &#39;bytearray&#39;, &#39;bytes&#39;, &#39;callable&#39;, &#39;chr&#39;, &#39;classmethod&#39;, &#39;cmp&#39;,
 &#39;coerce&#39;, &#39;compile&#39;, &#39;complex&#39;, &#39;copyright&#39;, &#39;credits&#39;, &#39;delattr&#39;, &#39;dict&#39;, &#39;dir&#39;, &#39;divmod&#39;, &#39;enumerate&#39;,
 &#39;eval&#39;, &#39;execfile&#39;, &#39;exit&#39;, &#39;file&#39;, &#39;filter&#39;, &#39;float&#39;, &#39;format&#39;, &#39;frozenset&#39;, &#39;getattr&#39;, &#39;globals&#39;,
 &#39;hasattr&#39;, &#39;hash&#39;, &#39;help&#39;, &#39;hex&#39;, &#39;id&#39;, &#39;input&#39;, &#39;int&#39;, &#39;intern&#39;, &#39;isinstance&#39;, &#39;issubclass&#39;, &#39;iter&#39;,
 &#39;len&#39;, &#39;license&#39;, &#39;list&#39;, &#39;locals&#39;, &#39;long&#39;, &#39;map&#39;, &#39;max&#39;, &#39;memoryview&#39;, &#39;min&#39;, &#39;next&#39;, &#39;object&#39;, &#39;oct&#39;,
 &#39;open&#39;, &#39;ord&#39;, &#39;pow&#39;, &#39;print&#39;, &#39;property&#39;, &#39;quit&#39;, &#39;range&#39;, &#39;raw_input&#39;, &#39;reduce&#39;, &#39;reload&#39;, &#39;repr&#39;,
 &#39;reversed&#39;, &#39;round&#39;, &#39;set&#39;, &#39;setattr&#39;, &#39;slice&#39;, &#39;sorted&#39;, &#39;staticmethod&#39;, &#39;str&#39;, &#39;sum&#39;, &#39;super&#39;, &#39;tuple&#39;,
 &#39;type&#39;, &#39;unichr&#39;, &#39;unicode&#39;, &#39;vars&#39;, &#39;xrange&#39;, &#39;zip&#39;]

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