Transaction isolation levels in MySQL
A non-repeatable read occurs, when during the course of a transaction, a row is retrieved twice and the values within the row differ between reads.
All posts by Vinta
Configure i18n Translations in Django
Internationalization and localization for your Django project.
Python is call-by-assignment
If you pass a mutable object into a method, the method gets a reference to that same object and you can mutate it to your heart's delight, but if you rebind the reference in the method, the outer scope will know nothing about it, and after you're done, the outer reference will still point at the original object.
If you pass an immutable object to a method, you still can't rebind the outer reference, and you can't even mutate the object.
Upload files to Amazon S3 when Travis CI builds pass
CAUTION! By default, only master branch's builds could trigger deployments in Travis CI.
Setup a static website on Amazon S3
Say that you would like to host your static site on Amazon S3 with a custom domain and, of course, HTTPS.