Comments on: Python Mistake http://leahculver.com/2007/11/06/python-mistake/ leahculver.com Wed, 03 Dec 2008 23:10:36 +0000 http://wordpress.org/?v=2.3.2 By: Nick Lewis http://leahculver.com/2007/11/06/python-mistake/#comment-865 Nick Lewis Mon, 12 Nov 2007 06:03:59 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-865 About a month ago, I was writing (in Python) an interpreter for a reduced version of PostScript for a class, and made a similar mistake. I was checking whether I had some code to execute, and if so, would interpret it. But my check was just using "if token_code", rather than "if token_code != None", so if the bit of code was just a literal 0, it would evaluate as false, and would skip it. I just started a new job working in Perl for the first time, and one of the hardest things is keeping straight what is implicitly true and false. So convenient to not have to be explicit, but only when it ends up *correct*. About a month ago, I was writing (in Python) an interpreter for a reduced version of PostScript for a class, and made a similar mistake. I was checking whether I had some code to execute, and if so, would interpret it. But my check was just using “if token_code”, rather than “if token_code != None”, so if the bit of code was just a literal 0, it would evaluate as false, and would skip it. I just started a new job working in Perl for the first time, and one of the hardest things is keeping straight what is implicitly true and false. So convenient to not have to be explicit, but only when it ends up *correct*.

]]> By: Brian Rosner http://leahculver.com/2007/11/06/python-mistake/#comment-864 Brian Rosner Sat, 10 Nov 2007 00:52:44 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-864 Yeah, I got bitten by this during development. Good thing I had a large dataset that pointed it out to me. Dang, lazy querysets, they make us all lazy ;) Yeah, I got bitten by this during development. Good thing I had a large dataset that pointed it out to me. Dang, lazy querysets, they make us all lazy ;)

]]> By: stubblechin http://leahculver.com/2007/11/06/python-mistake/#comment-862 stubblechin Thu, 08 Nov 2007 01:44:15 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-862 Good move, Leah. Good move, Leah.

]]> By: Pete http://leahculver.com/2007/11/06/python-mistake/#comment-861 Pete Wed, 07 Nov 2007 22:58:49 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-861 It was the right move. It is better to be above it all :) It was the right move. It is better to be above it all :)

]]> By: Leah Culver http://leahculver.com/2007/11/06/python-mistake/#comment-860 Leah Culver Wed, 07 Nov 2007 16:34:39 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-860 @ Interesante - agreed and deleted. Sorry for editing a posted entry. @ Interesante - agreed and deleted. Sorry for editing a posted entry.

]]> By: mikeal http://leahculver.com/2007/11/06/python-mistake/#comment-859 mikeal Wed, 07 Nov 2007 04:56:22 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-859 hrm, my post got mangled after the "greater than" operator I had in the post. I smell a bug :) hrm, my post got mangled after the “greater than” operator I had in the post. I smell a bug :)

]]> By: Philip Crow http://leahculver.com/2007/11/06/python-mistake/#comment-858 Philip Crow Wed, 07 Nov 2007 02:50:14 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-858 Well, I have no idea what that even means, so that makes me dumber than you?? Well, I have no idea what that even means, so that makes me dumber than you??

]]> By: Tiago Rodrigues http://leahculver.com/2007/11/06/python-mistake/#comment-857 Tiago Rodrigues Wed, 07 Nov 2007 01:43:57 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-857 Well thanks for the tip :) Although i already tried starting to work with Python a while ago, time hadn't allowed me to really practice it (i usually work with PHP). Now with the prospect of a new project (and some freedom of choice) i decided to give Python (and Django) a try, and i just started reading a nice book on it today, so this kind of tip is always useful. Well thanks for the tip :)
Although i already tried starting to work with Python a while ago, time hadn’t allowed me to really practice it (i usually work with PHP). Now with the prospect of a new project (and some freedom of choice) i decided to give Python (and Django) a try, and i just started reading a nice book on it today, so this kind of tip is always useful.

]]> By: Danno http://leahculver.com/2007/11/06/python-mistake/#comment-856 Danno Wed, 07 Nov 2007 01:11:37 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-856 wow. someone really posted that. sheesh. wants me to send them a letter bomb? Rocksteady, Danno~ wow. someone really posted that.
sheesh.

wants me to send them a letter bomb?

Rocksteady,
Danno~

]]> By: Interesante http://leahculver.com/2007/11/06/python-mistake/#comment-855 Interesante Wed, 07 Nov 2007 01:03:49 +0000 http://leahculver.com/2007/11/06/python-mistake/#comment-855 The other mistake is reading, taking personally, and then directing attention to that LiveJournal comment, because now that person thinks they got to you and they got some attention for it. My fault for clicking the link, of course. The other mistake is reading, taking personally, and then directing attention to that LiveJournal comment, because now that person thinks they got to you and they got some attention for it.

My fault for clicking the link, of course.

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