Django sessions works great since the begining, you can do a site with them and never really understand how sessions works, but you can't scale to thousands of simultaneous users writing all your sessions to database. The database can be a huge bottleneck here and you should remove all unnecessary …
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I started contributing to Django core after a failure in our project.
I had to rename a model attribute without touching our database. The solution was simple.
# Simple attribute to rename.
author = models.ForeignKey('Author')
# 1. Add db_column param.
author = models.ForeignKey('Author', db_column='author')
# 2. Change the attribute name …There are comments.
We at Buser recently migrated from Django unittests to pytest. It is amazing how much you can improve your tests with pytest.
Unfortunately our CI/CD was really slow after this change.
I discovered parallel pytest-django do their setup different than Django unittests. Django create a template database and copy …
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Honeycomb is the observability tool we use everyday at Buser. They help us tracking application bottlenecks, slow database queries, slow requests, requests with too many queries and much more.
Their automatic instrumentation with beeline is a good start, but at some point we had to extend the default behaviour.
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Python has awesome tools for logging, including standard logging module. Also, through WSGI protocol we have the wsgilog middleware. Using it is easy with any Python web framework.
You can easily integrate it in bottle environment.
import bottle
from wsgilog import log
app = bottle.Bottle(catchall=False)
logger_middleware = log(tohtml …There are comments.
It is just a small note about a hidden-ish Python feature. Looking for a thread pool solution, I found the threading module has no support to it.
The most common answers talk about pythonthreadpool library or some ActiveState cookbook recipe. I'm pretty sure it solves the problem, but that is …
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During PythonBrasil[6], we discussed about cracking captchas. I already worked on it to automate some tasks with a stupid captcha. A lot of internet voting systems and forms security are based on captcha.
It is really easy to clean the image with some Python tools.
def convert_image(image, threshold …There are comments.