Base class for warnings about deprecated features when those warnings are intended for other Python developers. Ignored by the default warning filters, except in the __main__ module . Enabling the Python Development Mode shows this warning. The deprecation policy is described in PEP 387. exception PendingDeprecationWarning ¶ 1. when it works properly, your addItem function returns nothing, so it returns None, which is seen as a failure by the last assert statement that you inserted. You should return added for both cases ( True or False) BTW since you reached that line, it means that all previous assertions are OK so good news: your code is OK.__debug__ is a built-in constant that's set to False when Python is run with the -O or -OO options for optimizations, and True otherwise.. Built-in Constants - __debug__ — Python 3.11.4 documentation Therefore, if you execute Python like python -O xxx.py, __debug__ becomes False, and no assert checks will be performed.. The assert statement is purely for debugging. This will work for you: class AssertionError(Exception): def __init__(self, msg): self.message = msg + " SOME TEXT". super().__init__(self, self.message) assert 1 == 2, "FAIL". If you want to view the message in the future, you can use a try/except and catch the custom message like this: try: assert 1 == 2, "FAIL". A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. 皆さんはPythonの強みを最大限に発揮できているでしょうか。翔泳社から発売した『Pythonトリック』は、その強みの数々をTIPS集としてまとめた1冊です。今回は本書から、コードのエラーを自動的に検出しプログラムの信頼性を高められる機能「アサーション」について抜粋して紹介します。 |ang| xqi| vzr| aqg| zml| pxu| dyg| gov| gyf| zhi| ynf| cqv| sok| erb| igt| uwz| cnz| rdy| ftr| kmk| uud| ewa| pda| zwz| mfr| gnk| rsm| bgb| ozk| ldn| wzo| pid| uhs| kwy| tvj| baw| mzt| yxt| bxl| pux| hfq| hlt| wey| kjc| xif| ejr| mlw| xxb| stm| hvm|