DataComPy
DataComPy is a package to compare two Pandas DataFrames. Originally started to
be something of a replacement for SAS's PROC COMPARE for Pandas DataFrames
with some more functionality than just Pandas.DataFrame.equals(Pandas.DataFrame)
(in that it prints out some stats, and lets you tweak how accurate matches have to be).
Then extended to carry that functionality over to Spark Dataframes.
Quick Installation
pip install datacompy
or
conda install datacompy
Installing extras
If you would like to use Spark or any other backends please make sure you install via extras:
pip install datacompy[spark]
pip install datacompy[dask]
pip install datacompy[duckdb]
pip install datacompy[polars]
pip install datacompy[ray]
In-scope Spark versions
Different versions of Spark play nicely with only certain versions of Python below is a matrix of what we test with
| Spark 3.1.3 | Spark 3.2.3 | Spark 3.3.4 | Spark 3.4.2 | Spark 3.5.0 | |
|---|---|---|---|---|---|
| Python 3.8 | ✅ | ✅ | ✅ | ✅ | ✅ |
| Python 3.9 | ✅ | ✅ | ✅ | ✅ | ✅ |
| Python 3.10 | ✅ | ✅ | ✅ | ✅ | ✅ |
| Python 3.11 | ❌ | ❌ | ❌ | ✅ | ✅ |
| Python 3.12 | ❌ | ❌ | ❌ | ❌ | ❌ |
:::{note}
At the current time Python 3.12 is not supported by Spark and also Ray within Fugue.
:::
Supported backends
- Pandas: (See documentation)
- Spark: (See documentation)
- Polars (Experimental): (See documentation)
- Fugue is a Python library that provides a unified interface for data processing on Pandas, DuckDB, Polars, Arrow, Spark, Dask, Ray, and many other backends. DataComPy integrates with Fugue to provide a simple way to compare data across these backends. Please note that Fugue will use the Pandas (Native) logic at its lowest level (See documentation)
Contributors
We welcome and appreciate your contributions! Before we can accept any contributions, we ask that you please be sure to sign the Contributor License Agreement (CLA).
This project adheres to the Open Source Code of Conduct. By participating, you are expected to honor this code.
Roadmap
Roadmap details can be found here
1 maintainer
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