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d540d0f28b
Updates our Python interpreter discovery to conform to the rules described in #2386, please see that issue for a full description of the behavior. Briefly, we now will search for interpreters that satisfy a requested version without stopping at the first Python executable. Additionally, if retrieving information about an interpreter fails we will continue to search for a working interpreter. We also add the plumbing necessary to request Python implementations other than CPython, though we do not add support for other implementations at this time. A major internal goal of this work is to prepare for user-facing managed toolchains i.e. fetching a requested version during `uv run`. These APIs are not introduced, but there is some managed toolchain handling as required for our test suite. Some noteworthy implementation changes: - The `uv_interpreter::find_python` module has been removed in favor of a `uv_interpreter::discovery` module. - There are new types to help structure interpreter requests and track sources - Executable discovery is implemented as a big lazy iterator and is a central authority for source precedence - `uv_interpreter::Error` variants were split into scoped types in each module - There's much more unit test coverage, but not for Windows yet Remaining work: - [x] Write new test cases - [x] Determine correct behavior around executables in the current directory - _Future_: Combine `PythonVersion` and `VersionRequest` - _Future_: Consider splitting `ManagedToolchain` into local and remote variants - _Future_: Add Windows unit test coverage - _Future_: Explore behavior around implementation precedence (i.e. CPython over PyPy) Refactors split into: - #3329 - #3330 - #3331 - #3332 Closes #2386 |
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uv-virtualenv
uv-virtualenv is a rust library to create Python virtual environments. It also has a CLI.