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Follow along in one of my step-by-step Python tutorials, or get your splash of science with one of my paper summaries.

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You can make custom `branca` legends for your `folium` maps using HTML and CSS.

Creating Custom branca Legends for folium Maps with HTML and CSS
(D) Data Visualization
geospatial data
HTML
CSS
library - pandas
library - base64
library - folium
library - branca
library - IPython.display

No map is complete without a legend. Learn how to make a branca legend to match the circle markers in your folium maps using HTML and CSS. Stylize the legend boxes, add…

Sep 15, 2026

Mapping scatter plot with hover over and pop-up text with `folium`'s CircleMarker method.

Mapping Scatter Plots on Folium Maps with folium.CircleMarker()
(D) Data Visualization
geospatial data
HTML
library - pandas
library - base64
library - folium
library - IPython.display
library - dotenv
library - os

Maps using the reverse-teardrop shaped marker in folium can quickly become congested and difficult to navigate. This tutorial shows how to use folium.CircleMarker() object…

Aug 31, 2026

A machine is fed with Japanese dates and outputs a clean polished output.

Conversion of Japanese Dates into the Gregorian Calendar
(B) Data Preprocessing
foreign languages
library - pandas
library - re

The era system used in official Japanese documents and data can be intimidating to those not accustomed to it. This short tutorial shows you how to convert Japanese dates…

Aug 14, 2026

A machine is fed with Japanese names and dates and outputs a clean English output.

Transliteration of Japanese Hiragana and Katakana Using the Roman Alphabet
(B) Data Preprocessing
foreign languages
library - jaconv
library - pykakasi

Tutorial on how to convert or transliterate Japanese words written in hiragana or katakana into the Roman alphabet using jaconv or pykakasi.

Aug 4, 2026

Comical illustration of figures scraping and extracting unique URL identifiers with manual tools like a scraper and pliers.

Algorithmic Site Crawling for Automatic Discovery of URL Identifiers of Japan’s Weather Stations
(A) Data Collection
(B) Data Preprocessing
weather data
Japan Meteorological Agency
data scraping
data parsing
library - re
library - requests
library - bs4
library - time
library - json
library - pathlib

Algorithmically crawling a website to automatically discover the URLs to scrape data from can eliminate the error prone process of copying and pasting the desired URLs.…

Jul 25, 2026

Illustration of figure holding the decoder key that is able to open a file of unknown encoding.

Reading CSV Files of Unknown Encoding into a Pandas DataFrame
(A) Data Collection
library - charset_normalizer
library - pandas

A short tutorial on how to open CSV files on unknown encoding by using charset_normalizer Python library to detect the encoding model used. The detected encoding can be…

Jul 14, 2026

Comical illustration of figure sleeping with a scraper set up next to the bed.

Responsible Web Scraping Practices for Beginners
(A) Data Collection
data scraping
library - requests
library - urllib
library - time
library - pandas
library - bs4

The beginner’s guide to responsible and robust web scraping practices, such as pausing between requests, reading the robots.txt file, and exception handling.

May 29, 2026

Icon plotting examples with scatter plots, partial icons and image overlays

Plotting Font Awesome Icons with matplotlib
(D) Data Visualization
Font Awesome
infographics
library - matplotlib
library - numpy
library - Pillow

Learn how to use Font Awesome icons in Python matplotlib figures as text objects or scatter plot paths, including partial icons, custom alignment, and image overlays.

May 21, 2026

Comical illustration of a figure collecting weather data using a scraper tool

Data Scraping and Parsing Weather Records from the Japan Meteorological Agency (JMA) Website Using Python
(A) Data Collection
(B) Data Preprocessing
weather data
Japan Meteorological Agency
data scraping
data parsing
library - requests
library - bs4
library - datetime
library - pytz
library - pandas

Step-by-step tutorial on scraping and parsing 10-minute weather records from the Japan Meteorological Agency (JMA) website and preparing them for further analysis using…

May 5, 2026
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