I’m lucky enough to be attending DjangoCon Europe this week. See the schedule of talks for a teaser. Talks are all being videoed and transcribed and will be shared online soon.
My thoughts and fairly rough notes to self can be found below:
Baptiste Mispelon: Baptiste’s adventures in Djangoland
This speacker was very encouraging of welcoming new members to the community
Look up PyCON INC?? Pixy dust workshops? Must have misheard this but there is another group akin to django girls
Hanna Kollo: Avoiding monoliths
Uses some Erlang – load sensitive
Dealing with fluid requirements
Over engineering upfront to be very modular can lead to issues with referencing other apps
Instead incrementally creating new apps from the initial app.
Grow in a tree like structure, app at a time.
Aim – when you add new feature only need to touch one app
They use a services layer – found idea on stackoverflow article – look up seemed to work for them.
Sounds like their project could be on the scale of BOS codebase.
She thinks services and unit tests first, end user HTML later.
Q: A repo per app
A: Same repo for all the apps
Abdulrahman Alotaibi: Injecting Django into the work environment
Snakes and rubies convinced him to go down the Django vs Ruby path.
Use of clis
See slide that covers principals he brought into place in his team.
Cardiff University Wellbeing service
Daniele puts out a call to assist with sprint to develop something for the Cardiff Wellbeing centre. They are volunteering and offering free 25 minute counselling sessions slots to attendees.
Ola Sitarska: Pushing the pony’s boundaries
Lots of experience creating Django admin interfaces. Jokes about leaving PHP behind.
Discusses how the admin site is wired together
Useful overrides for admin site:
- save_as (save as new)
- show_full_count – may wish to disable in certain circumstances
- actions_on_top boolean
Don’t use list_editable as not currently multi user safe way of editing your database.
ChangeList – if overriding here, maybe you are in too deep
Tips & tricks:
method overrides used to achieve permissions for DjangoGirls websites
Additional annotations for attributes/properties that appear on changelist.
- attribute. is_boolean
- custom actions
- django admin autocomplete – look up
- Look up: rowid fields
She wants to see updates to django admin area
Supporting django-flat-theme – updated CSS mainly
Ola wishes admin components were more reusable
Dafydd Evans: CAMEL, the Cardiff Maths e-learning project
Font has held Mathematics back from exploding on the web.
Can we do something with Latex and eLearning
Will unicode come and save us in the end ;)
Describes a very interesting start of a Maths VLE.
MathML – not human readable
Django core committers fielded IRC style questions from the audience
Lucie Daeye: Reaching out – Django in the social sciences
Spoke about the importance of bringing humanities students along with digital/programming movement.
Made an interesting point about the lack of non mathematical examples when demonstrating coding constructs. e.g frequent citations of coding the Fibonacci sequence.
Mentioned a good resource aimed at non programmers, Hello web app.
Yann Malet: Salt for Django developers
Introduced Salt terminology and showed some basic Salt commands.
Presentation tip: Use Ctrl + L to move cursor to be shown at the top of the terminal window
Salt allows you to add breakpoints
salt-cloud – provision AWS etc
mines are data stores
He co-wrote the book High Performance Django
There is talk of hpd-states
Mathieu Agopian: Switching from nose to py.test at Mozilla
pytest-cache --lf run the last test that failed
You can decorate with parameters to re-run the test with different variables
When even Google cannot help you. Mishearing jungle parler will not help you search for the django parler internationalisation egg ;) Context helped me decode viable to mean variable a lot sooner ;)
why use py.test?
- More pythonic – eg use clean asserts
- well supported
- Claims current tests are compatible – diff counts beg to differ
- Look up autouse – node related egg for fixtures
- Better output
Look out for slide notes – he was very keen on py.test and was using it at Mozilla.
Look into the cricket test tool
Erik Romijn: A sincere tale of Django, developers and security
Walked through an example of a PHP script that he found online that had huge security issues.
He developed an online tool to check security configuration of a django site
All related to prefixed SECURITY_ settings.
Recommends book: Bulletproof SSL and TLS
Remember to test for unexpected cases. e.g not just test for logged in user, test when not logged in too.
Check out requires.io – tracks the releases of your dependencies
Maik Hoepfel: On privilege and moral duty
An almost poetic call to embrace life and do more with our ability to change many lives.
Take home points for me:
- It’s easier to make your dynamic websites more widely accessible than you’d think
- Look in this testing tool: http://www.powermapper.com/
- Don’t forget your accessibility tree – the DOM’s accessible cousin ;)
- Bootstrap and Ember are working hard to make their frameworks more accessible
- Look into ARIA support within SVGs
- Use aria-hidden class for non essential icons
- Web components and the benefits of extending HTML by extension
For more info check out Leonie’s website and the Coding like you give a damn presentation:
Where have you been all my life? ;)
Grep within .gz file without uncompressing it first. One of life’s small pleasures.
zgrep "search term" example.gz