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• python : 3.7.0
• OS : Ubuntu 18.04.1 LTS
  
• IDE : PyCharm 2018.2.4
• conda : 4.5.11
• type setting : Markdown

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code

"""
@Author : 行初心
@Date   : 18-9-23
@Blog   : www.cnblogs.com/xingchuxin
@GitHub : github.com/GratefulHeartCoder
"""


class MyClass:

    def __init__(self, work, score):
        self.work = work
        self.score = score

    def __delattr__(self, name):
        print("你正在刪除一個屬性")
        return super().__delattr__(name)


def main():
    test = MyClass(work="math", score=100)

    # 刪除work屬性
    del test.work

    # work屬性刪除,score屬性還在
    print(test.score)

    try:
        print(test.work)
    except AttributeError as reason:
        print(reason)


if __name__ == ‘__main__‘:
    main()
 

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result

/home/coder/anaconda3/envs/py37/bin/python /home/coder/PycharmProjects/oop/demo.py
你正在刪除一個屬性
100
‘MyClass‘ object has no attribute ‘work‘

Process finished with exit code 0

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resource

• [文檔] https://docs.python.org/3/
• [規範] https://www.python.org/dev/peps/pep-0008/
• [規範] https://zh-google-styleguide.readthedocs.io/en/latest/google-python-styleguide/python_language_rules/
• [源碼] https://www.python.org/downloads/source/
• [ PEP ] https://www.python.org/dev/peps/
• [平臺] https://www.cnblogs.com/

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Python具有開源、跨平臺、解釋型、交互式等特性，值得學習。
Python的設計哲學：優雅，明確，簡單。提倡用一種方法，最好是只有一種方法來做一件事。
代碼的書寫要遵守規範，這樣有助於溝通和理解。
每種語言都有獨特的思想，初學者需要轉變思維、踏實踐行、堅持積累。

Python3基礎 __delattr__ 在一個屬性被刪除時的行為