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README.md

How to Work With Polars LazyFrames

This folder contains completed notebooks and other files used in the Real Python tutorial How to Work With Polars LazyFrames.

The following files are included:

  • tutorial_code.ipynb is a Jupyter Notebook containing all the code used in the tutorial.
  • rides.parquet contains taxi fare data used throughout the tutorial. [See below]
  • taxi_rides_nnGB.py are a series of Python scripts that will generate a local copy of the 2021_Yellow_Taxi_Trip_Data.csv in different sizes. This is used to illustrate data streaming and is provided to help demonstrate streaming.
  • programming_languages.csv is a small file used to illustrate the conversion between a DataFrame and a LazyFrame.
  • dataframe_timer.py and lazyframe_timer.py are two scripts used to compare the speed differences when using both a DataFrame and LazyFrame to perform an analysis.