Recently, I’ve been working with Pandas DataFrames that had a DateTime as the index. When I tried reindexing the DataFrame (using the reindex method), I bumped into an error. Let’s find out what causes it and how to solve it. The Python error I’m talking about is: A “duplicate axis”?…
Sometimes, it’s not entirely convenient to scrape data from the web: sometimes one needs to hover the mouse pointer over a particular element for another one to be rendered. In this blog post, we’ll simulate a mouseover in Selenium and Python. To mimic a mouseover event to trigger the display…
All of us data hoarders get to a point where we need to circumvent in-place rules that prevent us from scraping the web. Enter: Selenium. The world’s favorite tool for automating tasks in a browser. Selenium uses ChromeDriver, initially created for automated testing, but also a splendid scraping tool. In…
I’m a data scientist. Deploying is not part of my core skills, but something I need to be able to do when working on hobby projects. I recently embraced DigitalOcean to deploy my Django (Python) Project and want to elaborate on a problem I ran into. The error that appeared…
I recently got my hands on an invitation for Hex. Not only do they produce great blog posts, they also offer a product for a specific data science niche. The common issue with data science notebooks is that they are hard to translate to a compelling story for a not-so-tech-savvy…
Nothing more frustrating in a data science project than a library that doesn’t work in your particular Python version. Sometimes, you just need to install a virtual environment with another Python version. First of all, if you are a venv user, I hate to break it to you. There’s no…
JSON or JavaScript Object Notation is a popular file format for storing semi-structured data. Transforming it to a table is not always easy and sometimes downright ridiculous. However, Pandas offers the possibility via the read_json function. If you are not familiar with the orient argument, you might have a hard…
Brief blog post on a silly Python error. I’m still working on my ML project started hypertuning my sklearn pipeline — manually. To set the parameters of my pipeline in every iteration, I had to use set_params. My estimator is called model_pipeline and I needed to set the parameters via…
It’s been a while since I worked on a machine learning project from exploratory phase to model development. I bumped into a real newbie error and decided to write it down for my future self, and for you of course. Here’s the code I wrote and I hoped to get…
Pandas can be somewhat puzzling, sometimes. It has a ton load of functionalities, but that can make the syntax and methods obscure. Simply judging from the method name, the ‘join’ and ‘merge’ method could be the same thing. However, they aren’t. Here’s an error that I used to run into…
