Python DataFrame with fast insert and appends
Documentation
http://raccoon.readthedocs.io/en/latest/
Source location
Hosted on GitHub: https://github.com/rsheftel/raccoon
Overview
Raccoon is a lightweight DataFrame and Series implementation inspired by the phenomenal Pandas package for the one use case where Pandas is known to be sub-optimal: DataFrames and Series that grow in size by adding rows frequently in the code. Additionally Raccoon DataFrames and Series can be parametrized to be sorted so that additions to the DataFrame keep the index in sorted order to speed inserts and retrievals.
A simple speed comparison of Raccoon vs Pandas for typical functionality is located in the documentation.
Inspiration
Pandas DataFrames and Series are excellent multi-purpose data structures for data management and analysis. One of the use cases I had was to use DataFrames as a type of in-memory database table. The issue was that this required lots of growing the number rows of the DataFrame, something that is known to be slow in Pandas. The reason it is slow in Pandas is that the underlying data structure is numpy which does a complete copy of the data when the size of the array grows.
Functionality
Raccoon implements what is needed to use the DataFrame as an in memory store of index and column data structure supporting simple and tuple indexes to mimic the hierarchical indexes of Pandas. The methods included are primarily about setting values of the data frame, growing and appending the data frame and getting values from the data frame. The raccoon DataFrame is not intended for math operations like pandas and only limited basic math methods are included.
Underlying Data Structure
Raccoon uses the standard built in lists as its underlying data structure.
Why Raccoon?
According to wikipedia some scientists believe the panda is related to the raccoon
Contributing
Contribution in the form of pull requests are welcome. Use pytest to run the test suite. Be sure any new additions come with accompanying tests.
Future
This package serves the needs it was originally created for. Any future additions by myself will be driven by my own needs, but it is completely open source so I encourage anyone to add on and expand.
My hope is that one day Pandas solves the speed problem with growing DataFrames and this package becomes obsolete.
Python Version
Raccoon requires Python 3.11 or greater. Python 2.7 support was eliminated as of version 3.0. If you need to use raccoon with Python 2.7 use any version less than 3.0. Version 4.0 removed the concept of a dropin and now Raccoon only uses built in lists as its underlying data structure.
Helper scripts
There is helper function to generate these docs from the source code. On windows cd into the docs directory and execute make_docs.bat from the command line. To run the test coverage report run the coverage.sh script.
1 maintainer
Release files for raccoon 4.0
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Source distribution (sdist)
| File | Size | Uploaded | |
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| raccoon-4.0.tar.gz | 26.4 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| raccoon-4.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 52.9 kB
Release files / raccoon-4.0.tar.gz
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