differences

drawing

difference-in-differences estimation and inference for Python

For the following use cases

Balanced panels, unbalanced panels & repeated cross-section
Two + Multiple time periods
Fixed + Staggered treatment timing
Binary + Multi-Valued treatment
Heterogeneous treatment effects & triple difference
Parallelized estimation & multiplier bootstrap (joblib, via n_jobs)

see the Documentation for more details.

Installing

The latest release can be installed using pip

pip install differences

requires Python >= 3.10

Quick Start

ATTgt

the ATTgt class implements the estimation procedures suggested by Callaway and Sant'Anna (2021) , Sant'Anna and Zhao (2020) and the multi-valued treatment case discussed in Callaway, Goodman-Bacon & Sant'Anna (2021)

import differences

df = differences.generate_data()  # requires the [all] extra: pip install differences[all]

att_gt = differences.ATTgt(data=df, cohort_column='cohort')

att_gt.fit(formula='y', n_jobs=-1)

att_gt.aggregate('event')

differences ATTgt was inspired by

Callaway & Sant'Anna's did
Sant'Anna and Zhao's DRDID

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

differences-0.3.0.tar.gz (324.2 kB view details)

Uploaded Apr 12, 2026 Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

differences-0.3.0-py3-none-any.whl (89.4 kB view details)

Uploaded Apr 12, 2026 Python 3

File details

Details for the file differences-0.3.0.tar.gz.

File metadata

Download URL: differences-0.3.0.tar.gz
Upload date: Apr 12, 2026
Size: 324.2 kB
Tags: Source
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/6.1.0 CPython/3.12.8

File hashes

Hashes for differences-0.3.0.tar.gz
Algorithm	Hash digest
SHA256	`0f0bf18908aac127a2ba93ca552f34a7a1d7e9433ea5dde0a0552e919579e980`
MD5	`7e6d0a8cdcf215c0ef7b7affba071405`
BLAKE2b-256	`985f28ef330dbf0379e1416c685f327e96805a7f0f0069f67691d88ba5187e7e`

See more details on using hashes here.

Provenance

The following attestation bundles were made for differences-0.3.0.tar.gz:

Publisher: release.yaml on bernardodionisi/differences

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: differences-0.3.0.tar.gz
- Subject digest: 0f0bf18908aac127a2ba93ca552f34a7a1d7e9433ea5dde0a0552e919579e980
- Sigstore transparency entry: 1281049999
- Sigstore integration time: Apr 12, 2026
Source repository:
- Permalink: bernardodionisi/differences@e59cd643ff76326973d8ec388d70e9ce154972ab
- Branch / Tag: refs/tags/v0.3.0
- Owner: https://github.com/bernardodionisi
- Access: public
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: release.yaml@e59cd643ff76326973d8ec388d70e9ce154972ab
- Trigger Event: push