From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on ip-172-31-91-241.ec2.internal X-Spam-Level: X-Spam-Status: No, score=0.0 required=3.0 tests=none autolearn=ham autolearn_force=no version=4.0.1 Path: nntp.eternal-september.org!eternal-september.org!feeder.eternal-september.org!.POSTED!not-for-mail From: Lawrence =?iso-8859-13?q?D=FFOliveiro?= Newsgroups: comp.lang.ada Subject: Re: In precision typing we trust Date: Sat, 30 Aug 2025 03:34:36 -0000 (UTC) Organization: A noiseless patient Spider Message-ID: <108trgb$2ctc1$4@dont-email.me> References: <107uv9g$3019a$1@dont-email.me> <107v1ji$303of$1@dont-email.me> <336fbb5f-a279-ea8e-67fd-f62bb00d6a89@irrt.De> <107vfb9$34cpj$1@dont-email.me> <10855lq$gj8l$1@dont-email.me> <1088h1a$19635$1@dont-email.me> <1089p1i$1ig1d$1@dont-email.me> <108aq2p$1qo9o$1@dont-email.me> <108dh2l$2f5h3$1@dont-email.me> <108ej11$2mbr8$1@dont-email.me> <108g1fv$32gqg$3@dont-email.me> <108h6b7$3a75k$3@dont-email.me> <108ijfj$3lihe$4@dont-email.me> <108jqcg$3ti12$2@dont-email.me> <87cy8im3kc.fsf@nightsong.com> <108kp8k$5pr0$1@dont-email.me> <878qj5my4l.fsf@nightsong.com> <20250828142557.1ec4a637@tag.xn--rombobjrn-67a.se> <108qkci$1kvjl$1@dont-email.me> <20250829173021.53befdce@tag.xn--rombobjrn-67a.se> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Sat, 30 Aug 2025 03:34:36 +0000 (UTC) Injection-Info: dont-email.me; posting-host="c0b3afac58395fcfe10cd8a8a01c5d34"; logging-data="2520449"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+9k4cGLsNnUEDjLduZAnlY" User-Agent: Pan/0.163 (Kryvyi Rih) Cancel-Lock: sha1:/U1hWWrO46i59BDcty2LJ4n2cDw= Xref: feeder.eternal-september.org comp.lang.ada:66997 List-Id: On Fri, 29 Aug 2025 17:30:21 +0200, Björn Persson wrote: > Lawrence D’Oliveiro wrote: >> >> Shouldn’t your test harness have had something like >> >> assert isinstance(result_of_test, bool), \ > > Nope. The Python interpreter should, at a minimum, have done that as > part of its implementation of the if statement. Yes, the issue with the if-statement condition not being required to be of a boolean type. Python types are dynamic. So you need to check them at run-time. That goes with the territory. > But you already understood that much; you're just wilfully refusing to > get the point. Now you’re trying to make this into some kind of personal thing. Stop it. > A better design would have checked the type at compile time. Remember Alan Kay’s dictum: “Simple things should be simple, and complex things should be possible”. Ada may be helpful with keeping complex things manageable. But Python helps keep simple things simple, in a way that Ada cannot.