This post contains a step-by-step example of a refactoring session guided by tests. When dealing with untested or legacy code refactoring is dangerous and tests can help us do it the right way, minimizing the amount of bugs we introduce, and possibly comp... (more…)

Update #1: 6 Feb 2017  httpstat needs curl. Originally, this HowTo would freshly compile curl from the github source. Now, this HowTo shows how to reuse the existing curl package from the Ubuntu re…...

Effective Tuesday, June 20th, 2017, new Python applications pushed to Heroku will use the python-3.6.1 runtime by default (instead of python-2.7.13). (more…)

Sooner or later you will need to encrypt or hash some data. Thankfully we have the Cryptography library, along with the other projects maintained by the Python Cryptographic Authority, to make sure that your crypto is done right. In this episode Paul Kehr...

Recurrent neural networks can also be used as generative models. This means that in addition to being used for predictive models (making predictions) they can learn the sequences of a problem and then generate entirely new plausible sequences for the prob... (more…)