Implementation of the DataFrame Standard for pandas and Polars

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Project description

DataFrame API Compat

Implementation of the DataFrame Standard for pandas and polars-eager

Note: there is ongoing discussion about lazy engines in the Standard. Until that has been resolved, this package should not be relied upon for polars-lazy.

What's this?

Please read our blog post! https://data-apis.org/blog/dataframe_standard_rfc/.

Documentation

Please check https://data-apis.org/dataframe-api/draft/API_specification/index.html for the methods supported by the Consortium Dataframe Standard.

How to try this out

Here's an example of how you can try this out:

import polars as pl

df = pl.DataFrame({'a': [1,2,3]})
df_std = df.__dataframe_consortium_standard__()

The object df_std is a Standard-compliant DataFrame. Check the API Specification for the full list of methods supported on it.

Compliance with the Standard

This is mostly compliant. Notable differences:

for pandas numpy dtypes, the null values (NaN) don't follow Kleene logic;
for polars lazy, column reductions (e.g. column.mean()) are not implemented;
for polars lazy, comparisons between different dataframes are not implemented.

Installation

pip install dataframe-api-compat

Project details

These details have not been verified by PyPI

Project links

Release history Release notifications | RSS feed

0.2.7

Apr 26, 2024

0.2.6

Dec 28, 2023

0.2.5

Dec 28, 2023

0.2.4

Dec 15, 2023

0.2.3

Dec 9, 2023

0.2.2

Dec 2, 2023

0.2.1

Dec 2, 2023

0.2.0

Dec 2, 2023

0.1.40

Nov 29, 2023

0.1.39

Nov 24, 2023

0.1.38

Nov 22, 2023

0.1.37

Nov 22, 2023

0.1.36

Nov 21, 2023

0.1.35

Nov 21, 2023

0.1.34

Nov 21, 2023

0.1.33

Nov 20, 2023

0.1.32

Nov 20, 2023

0.1.30

Nov 17, 2023

0.1.29

Nov 16, 2023

0.1.28

Nov 12, 2023

0.1.27

Nov 11, 2023

0.1.26

Nov 9, 2023

0.1.25

Nov 9, 2023

0.1.24

Nov 1, 2023

0.1.23

Oct 30, 2023

0.1.22

Oct 30, 2023

0.1.21

Oct 25, 2023

0.1.20

Oct 24, 2023

0.1.19

Oct 8, 2023

0.1.18

Oct 8, 2023

0.1.17

Oct 5, 2023

0.1.16

Sep 22, 2023

0.1.14

Sep 22, 2023

0.1.13

Aug 15, 2023

This version

0.1.12

Aug 11, 2023

0.1.11

Aug 10, 2023

0.1.10

Aug 9, 2023

0.1.9

Aug 9, 2023

0.1.8

Aug 7, 2023

0.1.7

Aug 3, 2023

0.1.6

Aug 2, 2023

0.1.5

Aug 2, 2023

0.1.4

Aug 2, 2023

0.1.3

Aug 2, 2023

0.1.2

Aug 2, 2023

0.1.1

Aug 1, 2023

0.1.0

Jun 28, 2023

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