![]() and prefer emulated x64 windows in its stead. This is preparatory work for shipping support for uv downloading and installing aarch64 (arm64) windows Pythons. We've [had builds for this platform ready for a while](https://github.com/astral-sh/python-build-standalone/pull/387), but have held back on shipping them due to a fundamental problem: **The Python packaging ecosystem does not have strong support for aarch64 windows**, e.g., not many projects build aarch64 wheels yet. The net effect of this is that, if we handed you an aarch64 python interpreter on windows, you would have to build a lot more sdists, and there's a high chance you will simply fail to build that sdist and be sad. Yes unfortunately, in this case a non-native Python interpreter simply *works better* than the native one... in terms of working at all, today. Of course, if the native interpreter works for your project, it should presumably have better performance and platform compatibility. We do not want to stand in the way of progress, as ideally this situation is a temporary state of affairs as the ecosystem grows to support aarch64 windows. To enable progress, on aarch64 Windows builds of uv: * We will still use a native python interpreter, e.g., if it's at the front of your `PATH` or the only installed version. * If we are choosing between equally good interpreters that differ in architecture, x64 will be preferred. * If the aarch64 version is newer, we will prefer the aarch64 one. * We will emit a diagnostic on installation, and show the python request to pass to uv to force aarch64 windows to be used. * Will be shipping [aarch64 Windows Python downloads](https://github.com/astral-sh/python-build-standalone/pull/387) * Will probably add some kind of global override setting/env-var to disable this behaviour. * Will be shipping this behaviour in [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) We're coordinating with Microsoft, GitHub (for the `setup-python` action), and the CPython team (for the `python.org` installers), to ensure we're aligned on this default and the timing of toggling to prefer native distributions in the future. See discussion in - https://github.com/astral-sh/uv/issues/12906 --- This is an alternative to * #13719 which uses sorting rather than filtering, as discussed in * #13721 |
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.. | ||
uv | ||
uv-auth | ||
uv-bench | ||
uv-build | ||
uv-build-backend | ||
uv-build-frontend | ||
uv-cache | ||
uv-cache-info | ||
uv-cache-key | ||
uv-cli | ||
uv-client | ||
uv-configuration | ||
uv-console | ||
uv-dev | ||
uv-dirs | ||
uv-dispatch | ||
uv-distribution | ||
uv-distribution-filename | ||
uv-distribution-types | ||
uv-extract | ||
uv-fs | ||
uv-git | ||
uv-git-types | ||
uv-globfilter | ||
uv-install-wheel | ||
uv-installer | ||
uv-macros | ||
uv-metadata | ||
uv-normalize | ||
uv-once-map | ||
uv-options-metadata | ||
uv-pep440 | ||
uv-pep508 | ||
uv-performance-memory-allocator | ||
uv-platform-tags | ||
uv-publish | ||
uv-pypi-types | ||
uv-python | ||
uv-redacted | ||
uv-requirements | ||
uv-requirements-txt | ||
uv-resolver | ||
uv-scripts | ||
uv-settings | ||
uv-shell | ||
uv-small-str | ||
uv-state | ||
uv-static | ||
uv-tool | ||
uv-torch | ||
uv-trampoline | ||
uv-trampoline-builder | ||
uv-types | ||
uv-version | ||
uv-virtualenv | ||
uv-warnings | ||
uv-workspace | ||
README.md |
Crates
uv-bench
Functionality for benchmarking uv.
uv-cache-key
Generic functionality for caching paths, URLs, and other resources across platforms.
uv-distribution-filename
Parse built distribution (wheel) and source distribution (sdist) filenames to extract structured metadata.
uv-distribution-types
Abstractions for representing built distributions (wheels) and source distributions (sdists), and the sources from which they can be downloaded.
uv-install-wheel-rs
Install built distributions (wheels) into a virtual environment.
uv-once-map
A waitmap
-like concurrent hash map for executing tasks
exactly once.
uv-pep440-rs
Utilities for interacting with Python version numbers and specifiers.
uv-pep508-rs
Utilities for parsing and evaluating dependency specifiers, previously known as PEP 508.
uv-platform-tags
Functionality for parsing and inferring Python platform tags as per PEP 425.
uv-cli
Command-line interface for the uv package manager.
uv-build-frontend
A PEP 517-compatible build frontend for uv.
uv-cache
Functionality for caching Python packages and associated metadata.
uv-client
Client for interacting with PyPI-compatible HTTP APIs.
uv-dev
Development utilities for uv.
uv-dispatch
A centralized struct
for resolving and building source distributions in isolated environments.
Implements the traits defined in uv-types
.
uv-distribution
Client for interacting with built distributions (wheels) and source distributions (sdists). Capable of fetching metadata, distribution contents, etc.
uv-extract
Utilities for extracting files from archives.
uv-fs
Utilities for interacting with the filesystem.
uv-git
Functionality for interacting with Git repositories.
uv-installer
Functionality for installing Python packages into a virtual environment.
uv-python
Functionality for detecting and leveraging the current Python interpreter.
uv-normalize
Normalize package and extra names as per Python specifications.
uv-requirements
Utilities for reading package requirements from pyproject.toml
and requirements.txt
files.
uv-resolver
Functionality for resolving Python packages and their dependencies.
uv-shell
Utilities for detecting and manipulating shell environments.
uv-types
Shared traits for uv, to avoid circular dependencies.
uv-pypi-types
General-purpose type definitions for types used in PyPI-compatible APIs.
uv-virtualenv
A venv
replacement to create virtual environments in Rust.
uv-warnings
User-facing warnings for uv.
uv-workspace
Workspace abstractions for uv.
uv-requirements-txt
Functionality for parsing requirements.txt
files.