2024-09-27

New Additions

Official news

• September 2024 : Polars has a new lightweight plotting backend.
• September 2024 : GPU acceleration with Polars and NVIDIA RAPIDS.

Polars plugins

To learn to write, see this great tutorial by @MarcoGorelli!

• polars-xdt - Polars plugin with extra-datetime-related functionalities by @MarcoGorelli.
• polars-finance - A collection of Python Polars plugins and functions for market data processing by @ngriffiths13.
• polars_encryption - Polars plugin that extends Polars with encryption algorithm AES-GSM-SIV by @zlobendog.
• polars_iptools - Polars plugin for IP address parsing and enrichment including geolocation by @erichutchins.
• life_polars_plugin - Polars plugin to showcase some features of the plugin system by @condekind.
• polars-url - Polars plugin to parse/extract fields from urls by @condekind.
• polars-ml - Polars plugin for machine learning by @barak1412.
• polars-distance - Polars plugin for pairwise distance functions by @ion-elgreco.
• polars-reverse-geocode - This plugin is an offline reverse geocoder for finding the closest city to a given (latitude, longitude) pair by @MarcoGorelli.

Python

• PDS(polars-ds) - A modern take on data science and traditional tabular machine learning with Polars. It provides Python modules that help with EDA tasks for Polars dataframes, machine learning pipelines that are native to Polars (cleaner and faster than Sklearn). In addition, it contains Polars plugin functions that turns many common numerical, statistical functions, least squares, KNN queries, and many other ML metrics into expressions that are executable inside a Polars dataframe.@abstractqqq.
• photoshoot - A pytest plugin library for doing snapshot testing with Polars DataFrames by @ngriffiths13.
• polar_patch - Python package that brings type safety and type checking for custom Polars plugins by @Summit-Sailors.
• harley - Polars helper methods to enhance developer productivity by @TomBurdge.

R

• r-polars-dashboard - Dashboard comparing r-polars and py-polars APIs.
• neo-r-polars - Next generation of Polars R API.

Tutorials & workshops

• (Pretty) big data wrangling with DuckDB and Polars - Documentation that introduces the use of DuckDB and Polars with examples in R and Python by @grantmcdermott.
• Introduction course that introduces the concept of DataFrame with Polars and Python. It also proposes some corrected exercices by @TLouf.

Blog posts

• Benchmarking energy usage and performance of Polars and pandas - A blog post by the Polars team itself benchmarking Polars and Pandas.
• Why I’m Switching to Polars - A blog post that explains the reasons why Ari Lamstein now uses Polars by @arilamstein.

Talks and videos

• Polars - SQL Interface for Querying DataFrames ⏳ 20 min - A video that shows how to use SQL to query the data in Polars DataFrames by @bugbytes-io.
• How to Learn the Polars DataFrame Library ⏳ 110 min - A long video that explains and illustrates the basic principles of Polars by @KeithGalli. Associated github repo is here.
• Polars with Plotly ⏳ 19 min - A video that shows the usage of Polars with the Plotly graphic library by Plotly.

What's Changed

• Add life_polars_plugin by @ddotta in #336
• Add polars-url plugin by @ddotta in #339
• Add video about SQL queries with Polars by @ddotta in #340
• Add polars-ml plugin by @ddotta in #342
• Add photoshoot python library by @ddotta in #346
• Add Polars plugins section by @ddotta in #347
• Add video by @KeithGalli by @ddotta in #349
• Polar Patch by @ddotta in #350
• Description correction for polars-xdt plugin by @ddotta in #354
• Add polars-distance plugin by @ddotta in #356
• Updating Polars-ds (PDS) by @abstractqqq in #355
• Remove sorhawell from the list by @ddotta in #358
• Add polars-reverse-geocode plugin by @ddotta in #359
• Add blog post about official benchmarking by Polars team itself by @ddotta in #361
• Add r-polars-dashboard by @ddotta in #364
• Add neo-r-polars by @ddotta in #365
• Add new lightweight plotting backend by @ddotta in #367
• Add blog post by Ari Lamstein by @ddotta in #370
• Add documentation about DuckDB and Polars by @ddotta in #372
• Add harley python package by @ddotta in #373
• Add blog post about GPU acceleration with Polars and NVIDIA RAPIDS by @ddotta in #375
• Add Py4DataSci course on Dataframes in Python by @ddotta in #378
• Add video about using Polars with Plotly by @ddotta in #379

New Contributors

• @abstractqqq made their first contribution in #355

Full Changelog: 2024-07-15...2024-09-27

2024-07-15

New Additions

Python

• polars-fuzzy-match - Python package for fuzzy matching with Polars, i.e. matching text elements that are similar but not exactly identical by @bnm3k.
• Polars for Identifiers and Standard Format Strings - Python package for Processing IBAN, ISINs, URLs and other standard format data in Polars by @abstractqqq.
• polars_hash - Python package that provides stable hashing functionality across different Polars versions by @ion-elgreco.
• polars_ta - Python package that provides technical indicator operators rewritten in Polars by @wukan1986.
• QuickEcharts - Python package for fast and easy echarts with Polars backend by @AdrianAntico.
• Polars OLS - Python package that provides efficient rust implementations of common linear regression variants and exposes them as simple Polars expressions by @azmyrajab.
• polars-finance - A collection of Python Polars plugins and functions for market data processing by @ngriffiths13.
• polars-candle - Python package for for running candle ML models on Polars DataFrames by @wdoppenberg.

Tutorials & workshops

• Scripts and datasets for the O'Reilly book Python Polars: The Definitive Guide - Useful Python notebooks ordered by book chapter by @jeroenjanssens.
• Python-Polars-Tips-and-Tricks - Collection of source code demonstrating tips and tricks in Polars by @StuffbyYuki.

Blog posts

• Groupby in Polars - A post that explains how to Learn how to do group data using Polars by Alexandre Petit.
• DuckDB vs Polars - Thunderdome. - A blog post that compares Polars and DuckDB with the use of 16 GB of data on a machine of only 4 GB by @danielbeach.
• How moving from Pandas to Polars made me write better code without writing better code - A post that describs the process of "Polarification" of code written with Pandas by @duvenagep.
• Revisiting a Classic Cheminformatics Paper with Polars: The Wiener Index - A science blog post that uses Polars to track the information for the molecules in DataFrames by @bertiewooster.
• How to start using Polars & DuckDB together for data analysis - A post that demonstrates the usage of Polars with DuckDB to perform similar data transformations as is done using Pandas by @sumaniitm.
• Anatomy of a Polars Query: A Syntax Comparison of Polars vs SQL - A post that compares Polars syntax to SQL by @bfeif.
• Pandas vs. Polars — Time to Switch? - A blog post that compares Polars to Pandas in a series of 4 benchmarks performed on a csv file with 11 million rows by @daradecic.
• How to JOIN datasets in Polars … compared to Pandas - A blog post compares dataframe joins in Polars vs Pandas by @danielbeach.
• DuckDB vs Polars - Which One Is Faster? - An unofficial benchmark on DuckDB and Polars by @StuffbyYuki.
• Pandas vs Polars? Bid Adieu to Pandas and Switch To Polars! - An article that compares Polars to Pandas with a dataset of 1.2 GB. Code used is available on Github here.

Talks and videos

• Polars is the Pandas killer | PyData Tel Aviv 2024 ⏳ 22 min - A video that shows how Polars is competing head to head with scale, speed and ease of use for dataframe solution in python by Igor Mintz.
• Polars-Cookbook in Python - Polars cookbook with organized by Python notebooks and chapter by @StuffbyYuki.

What's Changed

• Add video by @mattharrison by @ddotta in #293
• Add video by @prosoitos by @ddotta in #296
• Add blog post about 30 comparison functions by @ddotta in #299
• Add blog post about comparing SQL to Polars by @ddotta in #300
• Add blog post analysing Age of Empires by @ddotta in #302
• Add article by @gox6 by @ddotta in #304
• Add mastering Polars article by @ddotta in #306
• Add new video comparison between Pandas and Polars by @ddotta in #310
• Add polars_encryption plugin by @ddotta in #311
• Add blog post about encrypting data with Polars by @ddotta in #312
• Add PolarsCodeAcademy youtube channel by @ddotta in #316
• Add video tutorial by Digital Program Life by @ddotta in #318
• Add blog post - new benchmark between Polars and Pandas by @ddotta in #320
• Add second video by Digital Program Life by @ddotta in #321
• Add blog post by @Cheukting by @ddotta in #322
• Add unofficial benchmarkind duckdb vs polars by @ddotta in #324
• Add polars_iptools plugin by @ddotta in #327
• Add blog post by @AnsaBaby by @ddotta in #328
• Ddotta/issue329 by @ddotta in #330
• Add video about Ollama local models by @ddotta in #333
• Add playlist about Polars basics by @ddotta in #335

Full Changelog: 2024-04-23...2024-07-15

2024-04-23

New Additions

Python

• polars-fuzzy-match - Python package for fuzzy matching with Polars, i.e. matching text elements that are similar but not exactly identical by @bnm3k.
• Polars for Identifiers and Standard Format Strings - Python package for Processing IBAN, ISINs, URLs and other standard format data in Polars by @abstractqqq.
• polars_hash - Python package that provides stable hashing functionality across different Polars versions by @ion-elgreco.
• polars_ta - Python package that provides technical indicator operators rewritten in Polars by @wukan1986.
• QuickEcharts - Python package for fast and easy echarts with Polars backend by @AdrianAntico.
• Polars OLS - Python package that provides efficient rust implementations of common linear regression variants and exposes them as simple Polars expressions by @azmyrajab.
• polars-finance - A collection of Python Polars plugins and functions for market data processing by @ngriffiths13.
• polars-candle - Python package for for running candle ML models on Polars DataFrames by @wdoppenberg.

Tutorials & workshops

• Scripts and datasets for the O'Reilly book Python Polars: The Definitive Guide - Useful Python notebooks ordered by book chapter by @jeroenjanssens.
• Python-Polars-Tips-and-Tricks - Collection of source code demonstrating tips and tricks in Polars by @StuffbyYuki.

Blog posts

• Groupby in Polars - A post that explains how to Learn how to do group data using Polars by Alexandre Petit.
• DuckDB vs Polars - Thunderdome. - A blog post that compares Polars and DuckDB with the use of 16 GB of data on a machine of only 4 GB by @danielbeach.
• How moving from Pandas to Polars made me write better code without writing better code - A post that describs the process of "Polarification" of code written with Pandas by @duvenagep.
• Revisiting a Classic Cheminformatics Paper with Polars: The Wiener Index - A science blog post that uses Polars to track the information for the molecules in DataFrames by @bertiewooster.
• How to start using Polars & DuckDB together for data analysis - A post that demonstrates the usage of Polars with DuckDB to perform similar data transformations as is done using Pandas by @sumaniitm.
• Anatomy of a Polars Query: A Syntax Comparison of Polars vs SQL - A post that compares Polars syntax to SQL by @bfeif.
• Pandas vs. Polars — Time to Switch? - A blog post that compares Polars to Pandas in a series of 4 benchmarks performed on a csv file with 11 million rows by @daradecic.
• How to JOIN datasets in Polars … compared to Pandas - A blog post compares dataframe joins in Polars vs Pandas by @danielbeach.
• DuckDB vs Polars - Which One Is Faster? - An unofficial benchmark on DuckDB and Polars by @StuffbyYuki.
• Pandas vs Polars? Bid Adieu to Pandas and Switch To Polars! - An article that compares Polars to Pandas with a dataset of 1.2 GB. Code used is available on Github here.

Talks and videos

• Polars is the Pandas killer | PyData Tel Aviv 2024 ⏳ 22 min - A video that shows how Polars is competing head to head with scale, speed and ease of use for dataframe solution in python by Igor Mintz.
• Polars-Cookbook in Python - Polars cookbook with organized by Python notebooks and chapter by @StuffbyYuki.

What's Changed

• Add groupby blog by @alexandthedataworld by @ddotta in #254
• Add blog post about comparing Polars and DuckDB by @ddotta in #255
• Add Polars for Identifiers and Standard Format Strings by @ddotta in #257
• Add blog post about "Polarification" by @ddotta in #258
• Polars for chemistry by @ddotta in #259
• Add polars_hash python package by @ddotta in #261
• Add blog post about using Polars and DuckDB together by @ddotta in #263
• Add blog post about comparing Polars syntax to SQL by @ddotta in #266
• Add polars_ta python package by @ddotta in #267
• Add QuickEcharts python package by @ddotta in #269
• Add Polars OLS python package by @ddotta in #272
• Add scripts and datasets for O'Reilly book Python Polars by @ddotta in #273
• Add Polars plugins for market data processing by @ddotta in #275
• Add blog post by @daradecic by @ddotta in #279
• Add blog post about comparing joins in Polars vs Pandas by @ddotta in #280
• Add video by Igor Mintz in PyData Tel Aviv by @ddotta in #281
• Add blog post by @StuffbyYuki by @ddotta in #285
• Add Python Polars Cookbook in Python by @ddotta in #286
• Add Python-Polars-Tips-and-Tricks repository by @ddotta in #287
• Add polars candle by @ddotta in #290
• Add blog post by @sm823zw by @ddotta in #291

Full Changelog: 2024-03-01...2024-04-23

2024-03-01

New Additions

Python

• Ibis Python package for Polars - Ibis is a Python library that provides a lightweight, universal interface for data wrangling. It can be used with Polars.
• Python package polars-ds - Python package that contains multiple extension to simplify common numerical/string data analysis procedures by @abstractqqq.
• Narwhals - Python files that provides an extremely lightweight compatibility layer between Polars, Pandas, cuDF, and Modin by @MarcoGorelli.
• polars-upgrade - Python package that automatically upgrades your Polars code so it's compatible with future versions by @MarcoGorelli.
• polars-fuzzy-match - Python package for fuzzy matching with Polars, i.e. matching text elements that are similar but not exactly identical by @bnm3k.

Cheat Sheets

• Cheatsheet for Pandas to Polars - A Cheat Sheet that shows how to convert some familiar Pandas commands to Polars by @braaannigan.

Tutorials & workshops

• Polars plugins tutorial - How you (yes, you!) can write a Polars Plugin, by @MarcoGorelli.

Blog posts

• Great Tables: The Polars DataFrame Styler of Your Dreams - A post that shows how Great Tables package uses polars expressions to make delightful tables by @machow.
• Polars dataframe’s plugins and extensibility: getting started - A post that illustrates the possibility of extending the core Dataframe API of Polars with a few examples by @brunocous.
• 15 Pandas ↔ Polars ↔ SQL ↔ PySpark Translations - A post that depicts the 15 most common tabular operations in Polars and their corresponding translations in Pandas, SQL and PySpark by @ChawlaAvi.
• LazyFrame: Exploring Laziness in Dataframes from Polars in Python - A blog post that introduces LazyFrames with Polars an Python by Manoj Das.
• Data Statistics in Polars - A post that explains how to extract insightful information from your data in Polars by Alexandre Petit.

Talks and videos

• Polars and time zones: everything you need to know | PyData Global 2023 ⏳ 29 min - A video that shows how to use Polars effectively for time series analysis involving different time zones by @MarcoGorelli.

What's Changed

• Add post about Great tables package by @ddotta in #222
• Add Ibis project by @ddotta in #224
• Add cheatsheet for Pandas to Polars by @ddotta in #226
• Ddotta/issue227 by @ddotta in #228
• Add python package polars-ds by @ddotta in #230
• Add blog post by @ChawlaAvi by @ddotta in #233
• Add video about time series by @MarcoGorelli by @ddotta in #234
• Add guide for Lazyframes by @ddotta in #236
• Add post about data statistics in Polars by @ddotta in #238
• polars-xdt by @FBruzzesi in #240
• Typos by @FBruzzesi in #241
• polars plugins tutorial by @FBruzzesi in #243
• Add Narwhals by @MarcoGorelli by @ddotta in #246
• Add polars-upgrade by @MarcoGorelli by @ddotta in #247
• Add polars-fuzzy-match by @MarcoGorelli by @ddotta in #249

New Contributors

• @FBruzzesi made their first contribution in #240

Full Changelog: 2024-01-17...2024-03-01

2024-01-17

New Additions

Official documentation

• Shared library plugins for Polars.

Python

• polars-business - Polars extension that offers utilities for business day operations with Polars and Python by @MarcoGorelli.

R

• polarssql - polarssql experimental package which is a DBI-compliant interface to Polars.

Blog posts

• Date and DateTime Manipulation in Polars - A blog post that shows examples of doing a number of date and datetime manipulations in Polars (Python) by @danielbeach. Code used is available on Github here.
• Pandas2 and Polars for Feature Engineering - A blog post that A blog post that compares Pandas2 and Polars for Feature Engineering tasks with Python by @hopswork.
• Spark vs Polars. Real-life Test Case. - A blog post in which the author tests whether Polars is able to handle "real amounts of data" and "really replace some production Spark workloads." by @danielbeach. Code used is available on Github here.
• Using Polars Plugins for a 14x Speed Boost with Rust - A blog post thats shows the use of Polars plugin system for Rust from some concrete examples by @ngriffiths13.
• Working with DateTime data in Polars - A blog post to helps you with the main operations that can be done with datetime data by Rielly Griffiths.
• Revolutionize Your Data Analysis: Polars Outperforms Pandas by Up to 5x in Numerical Filter Operations! - A blog post that compares Polars with Pandas by examining their performance in the real world by Daniel Builescu.
• Time series Analysis with Polars - A short blog post that explains how to deal with temporal datasets by @gaborschulz. Full helpful notebook available here.
• Interesting thread about Polars on Hacker News
• Level Up Your Data Analysis with Polars: A Powerful DataFrame Library for Speed and Efficiency](https://python.plainenglish.io/level-up-your-data-analysis-with-polars-a-powerful-dataframe-library-for-speed-and-efficiency-0b82c226c7f1) - A blog post that describs the main features of Polars (with benchmarks) by ravi-m.
• polars’ Rgonomic Patterns - A blog post that deeps dive into some of the advanced data wrangling functionality in python’s Polars package by @emilyriederer.

Talks and videos

• Library of the week 13 : Polars with Python ⏳ 15 min - A video that presents Polars with Python by @enarroied. Article supplied with the video in this page.

What's Changed

• Add blog post about date manipulations by @danielbeach by @ddotta in #194
• Add polars-business by @MarcoGorelli by @ddotta in #196
• Add blog post about Feature Engineering by hopswork by @ddotta in #198
• Add blog post - Real-life Test Case Spark vs Polars by @ddotta in #201
• Add blog post about using Polars plugin system by @ddotta in #202
• Add video by Eric Narro by @ddotta in #205
• Add polarssql R package by @ddotta in #206
• Add blog post about working with datetime data in Polars by @ddotta in #208
• Add blog post by Daniel Builescu by @ddotta in #210
• Add notebook about time series by @gaborschulz by @ddotta in #212
• Add polars plugins by @ddotta in #214
• Add thread on Hacker News by @ddotta in #216
• Add blog post by ravi M by @ddotta in #219
• Add blog post by @emilyriederer by @ddotta in #220

Full Changelog: 2023-10-19...2024-01-17

2023-10-19

New Additions

Official documentation

• Talk about Polars at EuroPython Conference 2023 ⏳ 28 min - Talk by @ritchie46 that introduces Polars and some of its design decisions.

Python

• Python package functime - Machine learning Python package built on Polars for time-series predictions by @neocortexdb. According to the developpers, it's the world's fastest and most feature-full machine learning forecasting library !

Blog posts

• Enhancing Data Analytics with Polars and MinIO - A blog post that explains how to use Polars with Minio’s open-source object storage by @IndexSeek.
• Using Polars with Snowflake - A blog post that shows how to use Polars with Snowflake by @IndexSeek.
• Partitioning Polars DataFrame on S3 with Apache Arrow - A blog post that explains how to partition large Polars DataFrames in AWS S3 by Matteo Arellano.
• Goodbye Spark. Hello Polars + Delta Lake - An article that presents how to use Polars in addition to Delta Lake by @danielbeach.
• How to learn Polars with ChatGPT? - An article that explains how to learn fundamental Polars concepts with ChatGPT by Suhith Illesinghe.

Talks and videos

• Polars DataFrame ⏳ 41 min - A video that shows some basic manipulations with Polars and Python by @vedica1011. Notebook used for the video in this github repo.
• Why I switched grom Pandas to Polars ⏳ 53 min - A workshop that breaks down the 3 reasons why you could switched from Pandas to Polars by @bfeif. Notebook used for the video in this github repo.
• Delimiters in Python Polars ⏳ 15 min - A video that explains how to use delimiters in Python Polars by @CodeKlaudia.
• Intro to Polars ⏳ 7 videos - A playlist of 7 videos that introduces the basic concepts of Polars (DataFrames, filtering, splitting...) by Joram Mutenge.
• Machine Learning with Polars ⏳ 6 videos - A playlist of 6 videos that analyzing and cleaning data using Polars to train machine learning models by Joram Mutenge.
• Pandas and Polars with Marco Gorelli ⏳ 55 min - A podcast by The Developers' Bakery that compares the performance of Polars to Pandas by @MarcoGorelli.

What's Changed

• Broken link to functime org by @ddotta in #167
• Add blog post about using Polars and MinIO by @ddotta in #169
• Add talk by @ritchie46 at EuroPython Conference 2023 by @ddotta in #171
• Add blog post about using Polars with Snowflake by @ddotta in #173
• Add video by @vedica1011 by @ddotta in #176
• Add video by @bfeif by @ddotta in #177
• Add video about delimiters by @CodeKlaudia by @ddotta in #179
• Add blog post about partitionning Polars DataFrames in AWS S3 by @ddotta in #181
• Add blog post about Polars + Delta Lake by @ddotta in #184
• Add introduction playlist to Polars by Joram Mutenge by @ddotta in #187
• Add machine learning playlist by Joram Mutenge by @ddotta in #188
• Add blog post about learning Polars with ChatGPT by @ddotta in #190
• Add podcast by @MarcoGorelli by @ddotta in #192

Full Changelog: 2023-09-14...2023-10-19

2023-09-14

New Additions

Official documentation

• Keynote on Polars at EuroSciPy 2023 ⏳ 57 min - Talk by @ritchie46 that dives into Polars and sees what makes it so efficient. It will touch on technologies like Arrow, Rust, parallelism, data structures, query optimization and more.

Rust

• Polars CLI Polars CLI is a command line interface for running SQL queries with Polars as backend.

Tutorials & workshops

• Data Pipelines with Polars: Step-by-Step Guide - A tutorial that explains how to build data pipelines with Polars by @AntonsRuberts. Code used is available on Github here.
• Python Polars: A Lightning-Fast DataFrame Library - A tutorial that shows how to use Polars with Python ecosystem by @hfhoffman1144. Code used is available on Github here.

Blog posts

• All that Polars that Make You Forget Pandas - A blog post that explores some deeper reasons behind the performance gains of Polars over Pandas.
• Polars vs Pandas. Inside an AWS Lambda - A blog post that covers the topic of using Polars vs Pandas inside an AWS Lambda to do data processing by @danielbeach. Code used is available on Github here.
• DuckDB vs Polars for Data Engineering - A blog post that compares Polars and DuckDB with pipelines for Data Engineering by @danielbeach.
• Pandas vs Polars: A database speed test. Who wins? - A blog post that compares the run-time of reading a database into a dataframe using Pandas versus using Polars by Thomas Reid.
• Polars and Pandas : What's the difference ? - A blog post that explains how Polars works under the hood and th best use cases for Polars and Pandas by @t-redactyl.
• Understanding the Polars nested column types - A blog post that helps to understand how nested column types works in Polars by @braaannigan.
• Polars vs DuckDB for Delta Lake ops - A blog post that compares Polars to DuckDB using Delta Lake by @wolliq.

Talks and videos

• Using the Rust Polars DataFrame library in a CLI ⏳ 4 min - A video that shows how to integrate Polars in a commande line interface by @paiml.
• The Ultimate Guide to Data Wrangling with Python | Rust Polars Data Frame ⏳ 10 videos - A playlist of 10 videos (WIP) that equips you with all the necessary knowledge required to utilize Python Polars Data Frame by @AmitXShukla.

Follow : Official

• Eitsupi (@eitsupi) - Contributor to R Polars project
• Etienne Bacher (@etiennebacher) - Contributor to R Polars project

What's Changed

• Add blog post about deeper reasons behind the performance gains of Polars by @ddotta in #137
• Add blog post about using Polars inside AWS by @ddotta in #138
• Add blog post about Polars vs DuckDB for Data Engineering by @ddotta in #139
• Add pipelines tutorial by @AntonsRuberts by @ddotta in #141
• Ddotta/issue142 by @ddotta in #143
• Add duration missing for "Manipulación de Datos con Polars en python" video by @ddotta in #145
• Add blog post by Thomas Reid by @ddotta in #147
• Add news about Polars's raisin seed round by @ddotta in #149
• Add real python blog about polars by @ddotta in #155
• Add video about using the Rust Polars DataFrame library in a CLI by @ddotta in #156
• Add video by Amit Shukla by @ddotta in #157
• Add keynote at EuroSciPy 2023 by @ddotta in #158
• Add polars CLI by @ddotta in #159
• chore: typo correction by @ddotta in #160
• chore: minor corrections by @ddotta in #163
• Add blog post about Delta Lake by @wolliq by @ddotta in #165

Full Changelog: 2023-07-19...2023-09-14

2023-07-19

New Additions

Python

• Python package seaborn_polars - Python package to plot Polars DataFrames and LazyFrames with seaborn by @pavelcherepan.
• Python package functime - Machine learning Python package built on Polars for time-series predictions by @DescendantAI . According to the developpers, it's the world's fastest and most feature-full machine learning forecasting library !

R

• tidypolars for R tidypolars package to use polars with tidyverse syntax.

Blog posts

• EDA with Polars: Step-by-Step Guide for Pandas Users (Part 1) - A blog post that describes the main data processing operations with Polars in Python by @AntonsRuberts. Code used is available in this notebook.
• EDA with Polars: Step-by-Step Guide to Aggregate and Analytic Functions (Part 2) - A blog post that shows how to perform with Polars and Python some fairly complex aggregates, rolling statistics and more by @AntonsRuberts. Code used is available in this notebook.
• Pyspark or Polars — What should you use? - A blog post that explores and breaks down some of the similarities between PySpark and Polars. It provides insights on when to choose one over the other by Vivek Kovvuru.
• Getting Started with the Polars Data Manipulation Library - A blog post that presents some simple features of Polars using Python by Juveriya Mahreen.
• 8 ways pandas really losing to Polars for quick market data analysis - A newsletter that compares the performance of Polars to Pandas for many common data manipulation techniques by PyQuant News.

Talks and videos

• How to update mass data using Polars DataFrame ⏳ 9 min - A video that presents the process of writing code to update mass columns across CSV or data files by @AmitXShukla. Notebook used for the video in this github repo.

What's Changed

• Add first part of blog post by @AntonsRuberts by @ddotta in #119
• Add video by @AmitXShukla by @ddotta in #121
• Add second part of blog post by @AntonsRuberts by @ddotta in #123
• Add blog post about PySpark and Polars by Vivek Kovvuru by @ddotta in #125
• Add blog post by Juveriya Mahreen by @ddotta in #128
• Add newsletter by PyQuant News by @ddotta in #129
• Add functime Python library by @ddotta in #132
• Add tidypolars R package by @etiennebacher by @ddotta in #133

Full Changelog: 2023-06-28...2023-07-19

2023-06-28

New Additions

Tutorials & workshops

• Cookbook Polars for R - A side-by-side comparison of Polars, R base, dplyr and data.table packages by @ddotta.
• Polars Workshop on AWS - A comprehensive workshop comparing Polars to Pandas, exploring a wide range of functions and features by @debnsuma.
• Polars cookbook in Python - This cookbook is a fork of the popular pandas-cookbook and has been modified to use the polars library. By @escobar-west, it uses real-world examples with "all the bugs and weirdness that entails."

Blog posts

• Pandas vs Polars – Speed Comparison - A blog post that compares the performance of Polars, Pandas and Pandas 2.0 by @StuffbyYuki. Code used is available on Github here.
• LazyFrame vs DataFrame in Polars – Performance Comparison - A blog post that introduces what LazyFrame is in Polars and its performance gain compared to DataFrame by @StuffbyYuki. Code used is available on Github here.
• Querying Polars DataFrames using SQL - A blog post that shows how to use the SQLContext object in Python to query a Polars DataFrame directly using SQL by @weimenglee.
• Polars vs Pandas: A Brief Tale of Two DataFrame Libraries - A blog post that compares Polars and Pandas focusing in particular on optional dependencies by @ranggakd.

Talks and videos

• Polars - make the switch to lightning-fast dataframes ⏳ 30 min - A talk that reports an experience switching from Pandas to Polars in a real-world ML project by @datenzauberai. Slides are available here.
• Polars: A highly optimized dataframe library ⏳ 20 min - A video that presents some mains features of Polars by @mattharrison.

What's Changed

• Add blog post by @StuffbyYuki by @ddotta in #101
• Add comparison blog post by @StuffbyYuki by @ddotta in #103
• Add blog post about querying Polars DataFrames using SQL by @ddotta in #105
• Add cookbook Polars for R by @ddotta in #108
• Add workshop by @debnsuma by @ddotta in #109
• Add blog post by @ranggakd by @ddotta in #111
• Add link to video - make the switch to lightning-fast dataframes by @ddotta in #114
• Add talk by @mattharrison by @ddotta in #115
• Add polars cookbook in Python by @escobar-west by @ddotta in #117

Full Changelog: 2023-05-30...2023-06-28

2023-05-30

New Additions

Python

• Python package seaborn_polars - Python package to plot Polars DataFrames and LazyFrames with seaborn by @pavelcherepan

Ruby

• polars for Ruby - Ruby polars-df gems to use Polars with Ruby.

Tutorials & workshops

• Fast String Processing with Polars — Scam Emails Dataset - A tutorial using Polars to implement a text processing pipeline process by @AntonsRuberts. Code used is available on Github here.

Blog posts

• Polars in the aRtic! - An another blog post that compares the performance between Pandas and Polars across a range of common data manipulation tasks by @MCodrescu. Code used is available on Github.
• A Polars exploration into Kedro - A blog post that explains how Polars can be used instead of pandas in Kedro for your data catalog and data manipulation by @astrojuanlu.
• High Performance Data Manipulation in Python: pandas 2.0 vs. polars - A blog post that compares differences between Python pandas 2.0 and Polars libraries by @jcanalesluna.
• Lightning-fast queries with Polars - Another blog post that is a good introduction to Polars by @astrojuanlu.
• Polars – Laziness and SQL Context. - A blog post that presents two good reasons to adopt Polars : Lazy and SQL Context by @danielbeach.
• Exploring Polars - The Lightning-Fast DataFrame Library in Python - A blog post on the basics of Polars by @mddas.

What's Changed

• Add seaborn_polars package by @ddotta in #83
• Add blog post by MCodrescu by @ddotta in #85
• Add kedro blog post by @ddotta in #88
• Add blog post by Datacamp by @ddotta in #89
• Add Polars-ruby by @ddotta in #91
• Add blog post by astrojuanlu by @ddotta in #96
• Add new blog post by @danielbeach by @ddotta in #97
• Add blog post by @mddas by @ddotta in #98
• Add tutorial by @AntonsRuberts by @ddotta in #99

Full Changelog: 2023-05-12...2023-05-30