Better unit tests in Django using Mommy

Unit testing your models in Django As a good developer, you write unit tests, of course. You will probably even write your tests before implementing your logic in a test-driven approach! However, when developing complex models which have interactions and foreign keys, writing tests can get messy and complicated. Say you want to test a model which has many dependencies to other models via foreign keys. To create an instance of your model, you first need to create all the other model instances which your model uses and that can be pretty tiring.
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PyTorch GPU inference with Docker and Flask

GPU inference In a previous article, I illustrated how to serve a PyTorch model in a serverless manner on AWS lambda. However, currently AWS lambda and other serverless compute functions usually run on the CPU. But what if you need to serve your machine learning model on the GPU during your inference and the CPU just doesn't cut it? In this article, I will show you how to use Docker to serve your PyTorch model for GPU inference and also provide it as a REST API.
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PyTorch Model in Production as a Serverless REST API

PyTorch is great to quickly prototype your ideas and get up and running with deep learning. Since it is very pythonic, you can simply debug it in PyCharm as you are used to in regular Python. However, when it comes to serving your model in production the question arises: how to do it? There are many possibilities to do so, but in this post, you will learn how to serve it as a lambda function in a serverless manner on AWS.
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Graphical Explanation of Neural Networks and Gradients with Python

How does an artificial neuron work? Inspired by neurons of the human brain, an artificial neuron receives several input values. These input values are multiplied with the weights of the neuron which reflects that some input values are activating the neuron (positive weights) while others inhibit the neuron (negative weights). The product values are then summed and together create the activity a. Finally, a non-linear function is applied on a to yield the final output of the neuron.
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Monte Carlo for better time estimates of your work

As a developer, you are often asked how long it will take to program a certain module or feature for some software project. This can be annoying at times, so let's make it more fun! In this post, we are going to use a data science approach to get up with better estimates. The whole post will be covered by simple Python code, which you can easily use for your own estimates.
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