py-why/dowhy

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DoWhy is a Python library for causal inference that supports explicit modeling and testing of causal assumptions. DoWhy is based on a unified language for causal inference, combining causal graphical models and potential outcomes frameworks.

Stars: 8.3k
Forks: 1.1k
Open beginner issues: 0
Indexed issues: 143
Avg merge: 7d 8h
Merged PRs (30d): 23

Dominant language: Python
License: MIT
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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143 open issues indexed

[gh-aw] Protected Files: [Repo Assist] feat(gcm): add random_seed to interventional_samples, counterfactual_samples, average_causal_effect Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 20/100

py-why/dowhy#1811 · Opened Sep 10, 2026
[gh-aw] Protected Files: [Repo Assist] feat(gcm): add random_seed to interventional_samples, counterfactual_samples, average_causal_effect Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 15/100

py-why/dowhy#1809 · Opened Sep 9, 2026
[gh-aw] Protected Files: [Repo Assist] feat(gcm): add random_seed to interventional_samples, counterfactual_samples, average_causal_effect Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 20/100

py-why/dowhy#1807 · Opened Sep 9, 2026
One-hot encoding of categorical effect modifiers breaks EconML effect estimation Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 65/100

py-why/dowhy#1805 · 1 comment · Opened Sep 8, 2026
Generally confused re: estimand vs adjustment vs gcm estimation approaches, and code Open

question

Difficulty 4/5 3-5 days Newbie friendliness 45/100

py-why/dowhy#1794 · 1 comment · Opened Sep 3, 2026
[Repo Assist] Monthly Activity 2026-09 Open

automation documentation repo-assist

Difficulty 5/5 Over a week Newbie friendliness 10/100

py-why/dowhy#1787 · 2 comments · Opened Sep 1, 2026
[gh-aw] Protected Files: [Repo Assist] perf(gcm): vectorise Shapley subset/weight generation and p-value averaging Open

agentic-workflows

Difficulty 5/5 Over a week Newbie friendliness 10/100

py-why/dowhy#1783 · Opened Aug 29, 2026
[gh-aw] Protected Files: [Repo Assist] test(refuters): regression tests for BootstrapRefuter dtype noise injection + CHANGELOG.rst for v0.15 Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 15/100

py-why/dowhy#1776 · Opened Aug 26, 2026
[gh-aw] Protected Files: [Repo Assist] fix: preserve outcome name in frontdoor/mediation estimand assumptions Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 10/100

py-why/dowhy#1775 · Opened Aug 26, 2026
[Repo Assist] ci: remove obsolete LLVM install step from CI workflows Open

agentic-workflows automation repo-assist

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

py-why/dowhy#1773 · Opened Aug 25, 2026
[Repo Assist] eng(tooling): correct isort py_version from 38 to 39 Open

agentic-workflows automation repo-assist

Difficulty 1/5 Under an hour Newbie friendliness 90/100

py-why/dowhy#1771 · Opened Aug 23, 2026
[Repo Assist] eng(tooling): correct isort py_version from 38 to 39 Open

agentic-workflows automation enhancement repo-assist

Difficulty 1/5 Under an hour Newbie friendliness 92/100

py-why/dowhy#1767 · Opened Aug 23, 2026
[Repo Assist] eng(tooling): align isort py_version to 3.9 and add known_first_party Open

agentic-workflows automation repo-assist

Difficulty 1/5 Under an hour Newbie friendliness 78/100

py-why/dowhy#1754 · Opened Aug 14, 2026
[Repo Assist] eng(tooling): align isort py_version to 3.9 and add known_first_party Open

agentic-workflows automation repo-assist

Difficulty 1/5 1-3 hours Newbie friendliness 35/100

py-why/dowhy#1753 · Opened Aug 14, 2026
Example notebook proposal: what to do when your SCM is silently non-identified (F1 driver-vs-car attribution) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 38/100

py-why/dowhy#1752 · 3 comments · Opened Aug 13, 2026
assign_causal_mechanisms has multiple implicit naming requirements Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 55/100

py-why/dowhy#1742 · 1 comment · Opened Aug 9, 2026
[gh-aw] Protected Files: [Repo Assist] fix(sensitivity): handle no-benchmark and scalar frac in LinearSensitivityAnalyzer Open

agentic-workflows

Difficulty 3/5 1-2 days Newbie friendliness 25/100

py-why/dowhy#1741 · Opened Aug 9, 2026
[gh-aw] Protected Files: [Repo Assist] fix: preserve outcome name in frontdoor/mediation estimand assumptions Open

agentic-workflows

Difficulty 5/5 Over a week Newbie friendliness 10/100

py-why/dowhy#1738 · Opened Aug 5, 2026
[gh-aw] Protected Files: [Repo Assist] fix: accept num_quantiles_to_discretize_cont_cols and sample_size_fraction directly in estimate_effect() Open

agentic-workflows

Difficulty 3/5 1-2 days Newbie friendliness 20/100

py-why/dowhy#1726 · Opened Aug 1, 2026
[Repo Assist] ci: bundle Dependabot action bumps — checkout v7.0.1 + setup-python v7 Open

agentic-workflows automation repo-assist

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

py-why/dowhy#1716 · Opened Jul 27, 2026
[Repo Assist] ci(docs): pin Poetry 2.1.3 and add venv caching to docs-ci.yml Open

agentic-workflows automation repo-assist

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

py-why/dowhy#1701 · Opened Jul 21, 2026
[Repo Assist] Release preparation: v0.15 Open

automation enhancement repo-assist

Difficulty 5/5 Over a week Newbie friendliness 25/100

py-why/dowhy#1696 · Opened Jul 20, 2026
estimate_probabilities() assumes parent columns are in the fitting order, but this is undocumented and error-prone Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 55/100

py-why/dowhy#1695 · 1 comment · Opened Jul 20, 2026
[Repo Assist] eng(deps): update pytorch-lightning dev constraint to >=2.0 for all Python versions Open

agentic-workflows automation repo-assist

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

py-why/dowhy#1690 · Opened Jul 18, 2026
[Repo Assist] ci: cancel superseded CI runs with concurrency groups Open

agentic-workflows automation repo-assist

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

py-why/dowhy#1687 · Opened Jul 17, 2026
AutoGluon wrapper loses pandas dtypes by converting DataFrames to NumPy arrays before fitting Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

py-why/dowhy#1686 · 3 comments · Opened Jul 17, 2026
[gh-aw] Protected Files: [Repo Assist] fix(bootstrap_refuter): correct dtype check and discard-proof category astype Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 20/100

py-why/dowhy#1683 · Opened Jul 16, 2026
[gh-aw] Protected Files: [Repo Assist] fix(bootstrap_refuter): correct dtype check and discard-proof category astype Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 20/100

py-why/dowhy#1680 · Opened Jul 14, 2026
[Repo Assist] ci(nightly): add workflow_dispatch trigger and venv caching Open

agentic-workflows automation enhancement repo-assist

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

py-why/dowhy#1679 · Opened Jul 13, 2026
[gh-aw] Protected Files: [Repo Assist] fix(bootstrap_refuter): correct dtype check and discard-proof category astype Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 15/100

py-why/dowhy#1674 · Opened Jul 11, 2026
[Repo Assist] ci: add weekly latest-deps compatibility workflow Open

agentic-workflows automation enhancement repo-assist

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

py-why/dowhy#1666 · Opened Jul 9, 2026
Tracking: full support for pandas 3.x and scikit-learn >= 1.7 Open

enhancement needs triage

Difficulty 5/5 Over a week Newbie friendliness 30/100

py-why/dowhy#1665 · 6 comments · Opened Jul 8, 2026
[gh-aw] Protected Files: [Repo Assist] fix(bootstrap_refuter): correct dtype check and discard-proof category astype Open

agentic-workflows

Difficulty 3/5 1-2 days Newbie friendliness 15/100

py-why/dowhy#1660 · Opened Jul 8, 2026
[gh-aw] Protected Files: [Repo Assist] improve: add __repr__ to CausalEstimate, CausalRefutation, and IdentifiedEstimand for better REPL/Jupyter display Open

agentic-workflows

Difficulty 2/5 1-3 hours Newbie friendliness 20/100

py-why/dowhy#1658 · Opened Jul 8, 2026
[gh-aw] Protected Files: [Repo Assist] improve: add __repr__ to CausalEstimate, CausalRefutation, and IdentifiedEstimand for better REPL/Jupyter display Open

agentic-workflows

Difficulty 3/5 1-2 days Newbie friendliness 25/100

py-why/dowhy#1652 · Opened Jul 7, 2026
[gh-aw] Protected Files: [Repo Assist] improve: add __repr__ to CausalEstimate, CausalRefutation, and IdentifiedEstimand for better REPL/Jupyter display Open

agentic-workflows

Difficulty 3/5 1-2 days Newbie friendliness 25/100

py-why/dowhy#1650 · Opened Jul 6, 2026
[gh-aw] Protected Files: [Repo Assist] improve: add __repr__ to CausalEstimate, CausalRefutation, and IdentifiedEstimand for better REPL/Jupyter display Open

agentic-workflows

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

py-why/dowhy#1648 · Opened Jul 6, 2026
[gh-aw] Protected Files: [Repo Assist] fix: respect treatment_value/control_value in PropensityScoreStratificationEstimator Open

agentic-workflows

Difficulty 3/5 1-2 days Newbie friendliness 25/100

py-why/dowhy#1647 · Opened Jul 5, 2026
[gh-aw] Protected Files: [Repo Assist] improve: add __repr__ to CausalEstimate, CausalRefutation, and IdentifiedEstimand for better REPL/Jupyter display Open

agentic-workflows

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

py-why/dowhy#1646 · Opened Jul 5, 2026
[gh-aw] Protected Files: [Repo Assist] fix(refuter): initialise _variables_of_interest to [] before try block Open

agentic-workflows

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

py-why/dowhy#1645 · Opened Jul 5, 2026
[gh-aw] Protected Files: [Repo Assist] fix(timeseries): remove redundant axis=0 from Series.shift() in temporal_shift Open

agentic-workflows

Difficulty 1/5 Under an hour Newbie friendliness 20/100

py-why/dowhy#1644 · Opened Jul 5, 2026
PropensityScoreWeightingEstimator: no analytic standard errors (silent bootstrap fallback) Open

enhancement performance

Difficulty 4/5 3-5 days Newbie friendliness 48/100

py-why/dowhy#1640 · 1 comment · Opened Jul 4, 2026
[Repo Assist] ci(deps): add npm ecosystem to Dependabot for docs/version_patcher Open

agentic-workflows automation repo-assist

Difficulty 1/5 Under an hour Newbie friendliness 86/100

py-why/dowhy#1639 · Opened Jul 4, 2026
[gh-aw] Protected Files: [Repo Assist] perf(gcm): avoid redundant get_ordered_predecessors calls and pre-allocated DataFrame in fitting_sampling Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 10/100

py-why/dowhy#1637 · Opened Jul 3, 2026
[gh-aw] Protected Files: [Repo Assist] fix(cit): correct conditional_MI entropy computation for discrete variables Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 25/100

py-why/dowhy#1636 · Opened Jul 3, 2026
[gh-aw] Protected Files: [Repo Assist] feat(gcm): add optional nodes filter to anomaly_scores() Open

agentic-workflows

Difficulty 3/5 1-2 days Newbie friendliness 15/100

py-why/dowhy#1627 · Opened Jun 30, 2026
[gh-aw] Protected Files: [Repo Assist] fix(cit): correct conditional_MI entropy computation for discrete variables Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 15/100

py-why/dowhy#1626 · Opened Jun 30, 2026
[Repo Assist] ci: add fail-fast: false to matrix strategies Open

agentic-workflows automation repo-assist

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

py-why/dowhy#1619 · Opened Jun 28, 2026
[gh-aw] Protected Files: [Repo Assist] perf(gcm): replace O(N×K) nx.ancestors loop with O(K) nx.descendants in _get_nodes_affected_by_intervention Open

agentic-workflows

Difficulty 4/5 3-5 days Newbie friendliness 20/100

py-why/dowhy#1617 · Opened Jun 26, 2026
[gh-aw] Protected Files: [Repo Assist] improve: warn users when treatment/outcome columns contain NaN values Open

agentic-workflows

Difficulty 3/5 1-2 days Newbie friendliness 25/100

py-why/dowhy#1616 · Opened Jun 25, 2026

py-why/dowhy

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