回答編集履歴
1
decoratorについて
test
CHANGED
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@@ -35,3 +35,89 @@
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# --end--
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```
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----
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@wrapsなしだと何をwrapしたのか分からなくなってしまう問題があります。
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```Python
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def deco(func):
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def wrapper(*args, **kwargs):
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print('--start--')
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func(*args, **kwargs)
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print('--end--')
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return wrapper
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@deco
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def test(name):
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"""How to use"""
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print(f'Hello Decorator - {name}')
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print(test.__doc__)
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# None
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print(test)
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# <function deco.<locals>.wrapper at 0x102dc38c8>
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```
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@wrapsを使うと、もとのオブジェクトの属性を引き継ぐことができます。
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```Python
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def deco(func):
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@wraps
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def wrapper(*args, **kwargs):
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print('--start--')
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func(*args, **kwargs)
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print('--end--')
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return wrapper
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@deco
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def test(name):
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"""How to use"""
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print(f'Hello Decorator - {name}')
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print(test.__doc__)
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# How to use
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print(test)
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# <function test at 0x102e98488>
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```
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