Articles tagged
“python”

Sometimes you have these simple Python projects that are essentially just a single file. On the road to package your project "properly", you'll find a lot of documentation and tools pushing you towards a complex project layout with multiple folders (e.g. a generally recommended src layout) and additional (empty …

How to create clients and users programmatically in Keycloak, using Python.

You're probably very familiar with the tools you use daily and operate them from muscle memory. But there are also these setup or maintenance tasks you only do every X months and their practical details are a bit hazy.

This is a random, work-in-progress collection of cheat sheets for these …

Yet another note to self.

You're working on some unit tests in pytest and its default log/print capturing is getting a bit in the way. You want to see print or logging calls immediately when they happen and not in some captured/delayed fashion.

Add these command line options …

The circular import problem in Python. Some module foo imports module bar, but bar also imports foo. On itself, it's not necessarily a problem. Python allows it. Depending on how both modules interact, you might not even notice there is cycle in the dependency chain.

However, when you have a …

In this notebook, I will dive into the OAuth 2.0 Authorization Code flow with PKCE step by step in Python, using a local Keycloak setup as authorization provider. The focus lies on practical, step by step low-level HTTP operations. We wont even use an actual browser nor need an actual HTTP server for the redirect URL.

When developing a web application of non-trivial size it can be challenging to find the relevant source file or class that is responsible for something you see on a web page.

PyCharm (currently my main development environment for python) provides a pycharm:// protocol handler, which makes it possible to link …

So you have some Python code in a try-catch, and you want the typical Python stacktrace (aka traceback, aka backtrace) in a way you can manipulate?

Here are some ways to handle it:

import traceback
import logging

try:
     stuff()
except Exception:

     # Just print traceback
     print "something went wrong, here is …

Music files come, music files go. And after some time your iTunes library is sprinkled with cases of

The song “Monsieur Cannibale” could not be used because the original file could not be found. Would you like to locate it?

Being annoyed by this and having no idea how "healthy …