Hi everyone, I'm usually not write anything in this mail list, but this theme something really strange Exist offissial doc: https://docs.python.org/3/reference/simple_stmts.html#the-assert-statement
and there is a key information: Assert statements are a convenient way to insert debugging assertions into a program. *Debugging. * - this is a key propose of asserts keyword. there is no any type of possible asserts that cannot be done with normal Exceptions and Errors types that more explicit and detailed when 'assert' - you have ValueError, TyperError and etc. what kind of problems must solved DEBUG tools in production code that can be easily turned off on servers by users? asserts used in tests and in process of debug code, not in production On Tue, Dec 3, 2019 at 6:47 PM Jarek Potiuk <jarek.pot...@polidea.com> wrote: > We had a few discussions about using asserts in our code. I pasted some > links below but wanted to extract a gist of it. > > Here are the comments summarised: > > - (+) asserts look nicer and are more readable than if (something): > throw Exception() > - (-) asserts can be optimized away with -O flag so we should not based > any real logic on having them > - (+) asserts are good in cases that can happen in development but > should "never happen" in reality > - (+) asserts are especially good for cases like None exception - they > add more developer friendly messages when they will fail a few lines > below > with (for example) None has no property "dag". But it's ok if those get > optimised away. > > We would like to discuss those points in community and have a community - > driven decision on: > > 1) whether we should use asserts? > 2) in which cases > 3) in which cases we should NOT use asserts. > > J. > > The links here: > > Slack Discussion: > https://apache-airflow.slack.com/archives/CCQ7EGB1P/p1575364664041300 > > Github threads: > > - https://github.com/apache/airflow/pull/6596#discussion_r352916409 > - https://github.com/apache/airflow/pull/6596#discussion_r352914727 > - > https://github.com/apache/airflow/pull/3690#pullrequestreview-143376629 > > Stack overflow link for asserts: > > - https://stackoverflow.com/a/1838411/5691525 > > > > > > J. > > -- > > Jarek Potiuk > Polidea <https://www.polidea.com/> | Principal Software Engineer > > M: +48 660 796 129 <+48660796129> > [image: Polidea] <https://www.polidea.com/> > -- _________ С уважением, Юлия Волкова Тел. : +7 (911) 116-71-82
