langchain
pypi package · declared by 89 of 2,343 sampled repositories · graph computed 2026-08-24
Counted from the runtime dependencies public repositories declare — not the resolved tree. A transitive dependency is a consequence; a declared one is a choice. Development dependencies are excluded because they repeat across every project in a language regardless of what is being built.
Declared with
ranked by association, not by count| Declared with | Repositories | vs chance |
|---|---|---|
| langchain-openai | 46 of 2,343 | 0.84 |
| langchain-community | 35 of 2,343 | 0.83 |
| langchain-core | 26 of 2,343 | 0.67 |
| langchain-ollama | 11 of 2,343 | 0.66 |
| langchain-google-genai | 13 of 2,343 | 0.63 |
| langchain-huggingface | 8 of 2,343 | 0.61 |
| langgraph | 18 of 2,343 | 0.60 |
| unstructured | 8 of 2,343 | 0.59 |
| langchain-anthropic | 10 of 2,343 | 0.57 |
| chromadb | 14 of 2,343 | 0.57 |
| sentence-transformers | 17 of 2,343 | 0.50 |
| streamlit | 10 of 2,343 | 0.48 |
| pypdf | 9 of 2,343 | 0.42 |
| nltk | 9 of 2,343 | 0.41 |
| python-dotenv | 32 of 2,343 | 0.37 |
| tiktoken | 14 of 2,343 | 0.34 |
| openai | 26 of 2,343 | 0.33 |
| pandas | 21 of 2,343 | 0.32 |
| beautifulsoup4 | 9 of 2,343 | 0.27 |
| datasets | 9 of 2,343 | 0.27 |
Every pair above is counted from the same evidence: repo manifest.
Used instead
candidates · shares a neighbourhood and refuses to co-occurNo alternative measured. A pair qualifies only if it shares a neighbourhood and then fails to appear together against an expectation that it would — and almost everything that shares a neighbourhood does appear together. That is the test working, not a gap in the data: similarity alone would list this tool’s closest neighbours as alternatives, and most of them are things it is used with.