「Python help関数の使い方」の版間の差分
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− | ==Python help関数の使い方== | + | ==[[Python help関数の使い方]]== |
[[Python]] | [[言語まとめ Python]] | | [[Python]] | [[言語まとめ Python]] | | ||
8行目: | 8行目: | ||
>>> import fileinput | >>> import fileinput | ||
>>> help(fileinput) | >>> help(fileinput) | ||
− | Help on module fileinput: | + | [[Help]] on module fileinput: |
NAME | NAME | ||
− | fileinput - | + | fileinput - [[Help]]er class to quickly write a loop over all standard input fi |
es. | es. | ||
36行目: | 36行目: | ||
=====例えば、文字列型のHELPを確認===== | =====例えば、文字列型のHELPを確認===== | ||
>>>help(__builtins__.str) | >>>help(__builtins__.str) | ||
− | Help on class str in module __builtin__: | + | [[Help]] on class str in module __builtin__: |
class str(basestring) | class str(basestring) | ||
| str(object) -> string | | str(object) -> string | ||
| | | | ||
− | | | + | | [[R]]eturn a nice string representation of the object. |
| If the argument is a string, the return value is the same object. | | If the argument is a string, the return value is the same object. | ||
| | | |
2020年2月16日 (日) 04:31時点における最新版
目次
Python help関数の使い方
Python | 言語まとめ Python |
"対象"に調べたいオブジェクトを設定
>>> help(対象)
ライブラリ等の場合、importしてから使用する
>>> import fileinput >>> help(fileinput) Help on module fileinput: NAME fileinput - Helper class to quickly write a loop over all standard input fi es. FILE c:\python25\lib\fileinput.py :
組み込みオブジェクトのHELPを確認する
組み込みオブジェクト名称を取得
>>> import pprint >>> pprint.pprint(dir(__builtins__)) ['ArithmeticError', 'AssertionError', 'AttributeError', 'BaseException', 'DeprecationWarning', 'EOFError', 'Ellipsis', : 'str' : 'zip']
例えば、文字列型のHELPを確認
>>>help(__builtins__.str) Help on class str in module __builtin__: class str(basestring) | str(object) -> string | | Return a nice string representation of the object. | If the argument is a string, the return value is the same object. |
オブジェクトではない場合、引用符で囲って使用する
>>> help('print') ------------------------------------------------------------------------ 6.6 The print statement print_stmt ::= "print" ([expression[1] ("," expression[2])* [","] | ">>" expression[3] [("," expression[4])+ [","]) Download entire grammar as text.[5] print evaluates each expression in turn and writes the resulting object to standard output (see below). If an object is not a string, it is :
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