nalepae
pandarallel
Python

A simple and efficient tool to parallelize Pandas operations on all available CPUs

Last updated Jul 4, 2026
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README

Pandaral·lel

PyPI version fury.io PyPI license PyPI download month

| Without parallelization | Without Pandarallel | | :----------------------: | ----------------------------------------------------------------------------------------------------------------- | | With parallelization | With Pandarallel |

Pandaral.lel provides a simple way to parallelize your pandas operations on all your CPUs by changing only one line of code. It also displays progress bars.

⚠️ Pandaral·lel is looking for a maintainer! ⚠️

If you are interested, please contact me or open a GitHub issue.

Maintainers

Former maintainers (thanks a lot for your work!)

Installation

pip install pandarallel [--upgrade] [--user]

Quickstart

from pandarallel import pandarallel

pandarallel.initialize(progress_bar=True)

df.apply(func)

df.parallel_apply(func)

Usage

Be sure to check out the documentation.

Examples

An example of each available pandas API is available:

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