Initial Python package resolution#1945
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This was referenced Jul 15, 2026
Add index.py as default entry point Start of basic package support This is the beginning of work on this feature, it's a little comment-heavy to that end and has some patterns that may not be permanent (these have generally been noted as such). As of this commit, there are tests that start to poke at this, namely the one that brings in fastapi, which currently fails due to an extension it doesn't like. Python package proof of concept Proof of concept for package support in dynamic Python workers. As of this commit, it can retrieve an sdist with a flat layout from pypi and install it into the virtual filesystem. It doesn't do dependency resolution, so the current tests fail when attempting to import FastAPI's deps. Clarifying comment Use wheels properly Used sdists before, now it uses wheels. Pre cleanup commit Wheel changeover cleanup Use simpler packages for minimal package support test This test only needs to confirm that retrieval of a hard list of pure python packages, without dependency resolution, works. Move python logic out of 'bundle' path This seems to be specific to JS packages Slight cleanup, remove test More cleanup Re-add parameter that was mistakenly deleted Order deps alphabetically Remove unused variable Make createWorker Python return more uniform with JS Make createWorker registry pattern more consistent with JS Also makes PyprojectToml interface less stringent Small fixes These got caught by the checks done by `pnpm run check` Style fixes Remove parsing for version string Comment dep version parameter Compensate for distribution packages' names not matching their imports Remove default values from test These are already set implicitly by createWorker Move Python package metadata collection into its own function Move Py deps installation into its own function Account for type checker Undo unintended compat date change Bump up compatibility date (test) Prevent adding python and JS deps to the same worker Implicitly add workers-runtime-sdk package Remove check for when there are no dependencies, since there will always be at least one Add python_workers flag if user-supplied flags exclude it Typo Clarifying comment Include installWarnings with returned object Change tests to assert existence of compat flags Remove redundant compat flag default This is implicit on Python dynamic workers now Mark comment as TODO Change installDependenciesPython to replicate the JS impl's usage of the result object Finish propagating `result` object and explicitly disable pyproject.toml and package.json in one worker Add more TODOs
Reconstitute work on this repo Add index.py as default entry point Start of basic package support This is the beginning of work on this feature, it's a little comment-heavy to that end and has some patterns that may not be permanent (these have generally been noted as such). As of this commit, there are tests that start to poke at this, namely the one that brings in fastapi, which currently fails due to an extension it doesn't like. Python package proof of concept Proof of concept for package support in dynamic Python workers. As of this commit, it can retrieve an sdist with a flat layout from pypi and install it into the virtual filesystem. It doesn't do dependency resolution, so the current tests fail when attempting to import FastAPI's deps. Clarifying comment Use wheels properly Used sdists before, now it uses wheels. Pre cleanup commit Wheel changeover cleanup Use simpler packages for minimal package support test This test only needs to confirm that retrieval of a hard list of pure python packages, without dependency resolution, works. Move python logic out of 'bundle' path This seems to be specific to JS packages Slight cleanup, remove test More cleanup Re-add parameter that was mistakenly deleted Revert "remove dependency that was causing issues" This dependendency caused issues when working in a container, but its removal was purely for my sake This reverts commit 4f8990d. Order deps alphabetically Remove unused variable Make createWorker Python return more uniform with JS Make createWorker registry pattern more consistent with JS Also makes PyprojectToml interface less stringent Small fixes These got caught by the checks done by `pnpm run check` Style fixes Remove parsing for version string Comment dep version parameter Compensate for distribution packages' names not matching their imports Remove default values from test These are already set implicitly by createWorker Move Python package metadata collection into its own function Move Py deps installation into its own function Account for type checker Nested dependency installation without version resolution Undo unintended compat date change Bump up compatibility date (test) Prevent adding python and JS deps to the same worker Implicitly add workers-runtime-sdk package Remove check for when there are no dependencies, since there will always be at least one Add python_workers flag if user-supplied flags exclude it Typo Clarifying comment Include installWarnings with returned object Type checker fix Change tests to assert existence of compat flags Remove redundant compat flag default This is implicit on Python dynamic workers now Mark comment as TODO Change installDependenciesPython to replicate the JS impl's usage of the result object Finish propagating `result` object and explicitly disable pyproject.toml and package.json in one worker Add more TODOs Change return type
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Early support for automatically installing nested dependencies. At present, this branch only tests for pure Python packages, and only from PyPI (pyodide index to be added in a future PR).
Builds on #1881 (so commits will look excessive until that's merged)