はてなブックマーク

Understanding Python metaclasses 09 February 2015 (updated 19 November 2020) None of the existing articles [1] give a comprehensive explanation of how metaclasses work in Python so I'm making my own. Metaclasses are a controversial topic [2] in Python, many users avoid them and I think this is largely caused by the arbitrary workflow and lookup rules which are not well explained. There are few key

Python debugging tools 05 June 2013 (updated 17 February 2016) This is an overview of the tools and practices I've used for debugging or profiling purposes. This is not necessarily complete, there are so many tools so I'm listing only what I think is best or relevant. If you know better tools or have other preferences, please comment below. Logging * Yes, really. Can't stress enough how important

Terrible choices: MySQL 28 December 2014 (updated 25 September 2017) I've used MySQL for a while now, and there were lots of surprising things I needed to cater for. This is from a Django and MySQL 5.5 perspective [*]. Later on you'll see the horrible things I did to work around. It was a terrible experience, as I've also used PostgreSQL ... Feel free to add your own experiences in the comments se

Python debugging tools 05 June 2013 (updated 17 February 2016) This is an overview of the tools and practices I've used for debugging or profiling purposes. This is not necessarily complete, there are so many tools so I'm listing only what I think is best or relevant. If you know better tools or have other preferences, please comment below. Logging * Yes, really. Can't stress enough how important