python

virtual environments in thonny on raspberry pi

Associate Thonny with a Virtual Environment on Raspberry Pi

by roelpi
September 4, 2019September 4, 2019

In this small blog post I explain how you can work with a virtual environment in Thonny on a Raspberry Pi. But first, let’s create a virtual environment using venv. Open the terminal Change directory to the folder of your project (cd), or create a new one (mkdir) Inside that… Read More »

Decomposition of time series with pandas and statsmodels

by roelpi
September 4, 2019September 4, 2019

In this blog post I decompose a time series of monthly data using the pandas and statsmodels package in Python. You can find the data that I use in this blog post in my github repo. It is a monthly average of daily car counts on different hubs on the… Read More »

Pandas: Solve ‘You are trying to merge on object and int64 columns’

by roelpi
August 27, 2019September 2, 2019

Pandas is the go-to package for anything data science in Python. However, if you’re used to R and the convenience of dplyr or data.table, pandas can be a real pain in the ###, sometimes. For example, the following error is a real newb issue. You are trying to merge on… Read More »

Changing Virtual Environments in Visual Studio Code (Python)

by roelpi
July 11, 2019July 11, 2019

A lot of my colleagues run into problems with their virtual environments in Visual Studio Code. We use venv as environment manager for Python projects and sometimes it feels like VS Code really doesn’t do what we expect of it. Here’s what you need to do to change virtual environments… Read More »

What to do when Python is not recognized as an internal or external command

by roelpi
June 8, 2019June 8, 2019

One of the main reasons I prefer R(Studio) over Python for doing data science in a context of business intelligence is the ease and stability of the workspace: no virtual environments to maintain since most popular libraries have matured. An update once a year suffices. Yet I acknowledge Python is… Read More »

Using Python in Azure Functions

by roelpi
April 14, 2019May 28, 2019

Recently, I jumped on the serverless hype train. I basically sold my soul to Microsoft and Azure, so the possibility of running Python in Azure Functions is pretty damn cool. But since it’s still in preview mode (beta), it has proven to be a nerve-wrecking experience. Here’s some brief instructions… Read More »