There is a runtime issue with some of these builds
Here is the testing I've seen (❌ has bug, ✅ works):
* uv version (pbs version)
* ❌ uv 0.7.7 (pbs 20250521)
* ❌ uv 0.7.6 (pbs 20250517)
* ✅ uv 0.7.5 (pbs 20250409)
* os
* ❌ linux
* ✅ windows
* arch
* ❌ x86_64
* ✅ aarch64
* python version
* ❌ 3.12
* ❌ 3.13
* ❌ 3.14
Fixes#13610
In platform discovery we're parsing the output of the ELF interpreter,
e.g., `/lib64/ld-linux-x86-64.so.2`. This file is ld, not ldd, which was
incorrectly named in the code.
An alternative is naming everything ELF interpreter instead of ld.so.
Rustfmt introduces a lot of formatting changes in the 2024 edition. To
not break everything all at once, we split out the set of formatting
changes compatible with both the 2021 and 2024 edition by first
formatting with the 2024 style, and then again with the currently used
2021 style.
Notable changes are the formatting of derive macro attributes and lines
with overly long strings and adding trailing semicolons after statements
consistently.
e.g., these are misleading cruft in the error message at
https://github.com/astral-sh/uv/pull/12168#discussion_r2078204601
```
❯ uv python find /foo/bar
error: No interpreter found for path `/foo/bar` in virtual environments, managed installations, or search path
❯ cargo run -q -- python find /foo/bar
error: No interpreter found at path `/foo/bar`
```
When removing a Python interpreter underneath an existing venv, uv
currently shows a not found error:
```
error: Failed to inspect Python interpreter from active virtual environment at `.venv/bin/python3`
Caused by: Python interpreter not found at `/home/konsti/projects/uv/.venv/bin/python3`
```
This is unintuitive, as the file for the Python interpreter does exist,
it is a broken symlink that needs to be replaced with `uv venv`.
I've been encountering those occasionally, and I expect users that
switch between versions a lot will, too, especially when they also use
pyenv or a similar Python manager.
The new error hints at this solution:
```
error: Failed to inspect Python interpreter from active virtual environment at `.venv/bin/python3`
Caused by: Broken symlink at `.venv/bin/python3`, was the underlying Python interpreter removed?
hint: To recreate the virtual environment, run `uv venv`
```
We have test coverage for this elsewhere, but managed Python versions
are a distinct case because we know the _full_ version before querying
the interpreter (whereas, when we find them on the `PATH`, we usually
only know `X.y` from the file name).
This pre-filter logic now matches our subsequent logic at
060be9cef1/crates/uv-python/src/discovery.rs (L2146-L2149)060be9cef1
shows the snapshot change.
## Summary
This adds GraalPy download metadata so that `uv python install graalpy`
works. See https://github.com/astral-sh/uv/issues/13114
## Test Plan
The existing integration test was changed to test this functionality.
In #13302, there was an IO error without context. This error seems to be
caused by a symlink error. Switching as symlinking to `fs_err` ensures
these errors will carry context in the future.
## Summary
Part of #12838. Allow users to configure `python-downloads-json-url` in
`uv.toml` and not just from env.
I followed similar PR #8695, so same as there it's also available in the
CLI (I think maybe it's better not to be configurable from the CLI, but
since the mirror parameters are, I think it's better to do the same)
## Test Plan
<!-- How was it tested? -->
## Summary
In #10939 I added the generated
`crates/uv-python/src/download-metadata-minified.json` file which is a
minified version of `crates/uv-python/download-metadata.json`.
The main reason for this PR is to avoid bloating the git objects as this
is a single-line file.
As a bonus, I also filtered the embed json to include only the versions
for the compiled target. Which should improve the binary size and
performance by a bit.
## Test Plan
<!-- How was it tested? -->
I think this regressed in https://github.com/astral-sh/uv/pull/13027 — I
misunderstood what versions could be represented in the `pyvenv.cfg` (I
assumed they _never_ included pre-release components).
Closes#13233
Part of #11834
Currently, all Python installation are a streaming download-and-extract.
With this PR, we add the `UV_PYTHON_CACHE_DIR` variable. When set, the
installation is split into downloading the interpreter into
`UV_PYTHON_CACHE_DIR` and extracting it there from a second step. If the
archive is already present in `UV_PYTHON_CACHE_DIR`, we skip the
download.
The feature can be used to speed up tests and CI. Locally for me, `cargo
test -p uv -- python_install` goes from 43s to 7s (1,7s in release mode)
when setting `UV_PYTHON_CACHE_DIR`. It can also be used for offline
installation of Python interpreter, by copying the archives to a
directory in the offline machine, while the path rewriting is still
performed on the target machine on installation.
When working on #13025 I noticed this message was lacking versions,
which seems frustrating if you're debugging things.
I refactored the general `matches_interpreter` utilities that were added
in https://github.com/astral-sh/uv/pull/12884 into a more purpose-fit
function that returns an `Option` with the versions if there's a
mismatch.
## Summary
Before:
```console
$ uv python list py --managed-python
error: Interpreter discovery for `executable name `py`` requires `search path` but only only managed is allowed
```
After:
```console
$ uv python list py --managed-python
error: Interpreter discovery for `executable name `py`` requires `search path` but only `only managed` is allowed
```
Fixes#12914.
When `PythonDownloadRequest` does not have the `implementation` set, do
not set it to CPython when calling `fill`, otherwise only CPython
interpreters are shown when listing interpreters available for download,
with `uv python list`.
It was possible that a virtual environment became out of sync with the
interpreter it pointed to (for example, if a symlink was changed to an
updated Python version). In such a case, `pyvenv.cfg` and
`activate_this.py` would no longer be correct. This PR detects when the
`version` (`venv` module) or `version_info` (uv and `virtualenv`) field
in `pyvenv.cfg` is out of sync with the interpreter. In such a case, uv
recreates the virtual environment.
Closes#12461
## Summary
Add an option to overwrite the list of available Python downloads from a
local JSON file by using the environment variable
`UV_PYTHON_DOWNLOADS_JSON_URL`
as an experimental support for providing custom sources for Python
distribution binaries #8015
related #10203
I probably should make the JSON to be fetched from a remote URL instead
of a local file.
please let me know what you think and I will modify the code
accordingly.
## Test Plan
### normal run
```
root@75c66494ba8b:/# /code/target/release/uv python list
cpython-3.14.0a4+freethreaded-linux-x86_64-gnu <download available>
cpython-3.14.0a4-linux-x86_64-gnu <download available>
cpython-3.13.1+freethreaded-linux-x86_64-gnu <download available>
cpython-3.13.1-linux-x86_64-gnu <download available>
cpython-3.12.8-linux-x86_64-gnu <download available>
cpython-3.11.11-linux-x86_64-gnu <download available>
cpython-3.10.16-linux-x86_64-gnu <download available>
cpython-3.9.21-linux-x86_64-gnu <download available>
cpython-3.8.20-linux-x86_64-gnu <download available>
cpython-3.7.9-linux-x86_64-gnu <download available>
pypy-3.10.14-linux-x86_64-gnu <download available>
pypy-3.9.19-linux-x86_64-gnu <download available>
pypy-3.8.16-linux-x86_64-gnu <download available>
pypy-3.7.13-linux-x86_64-gnu <download available>
```
### empty JSON file
```sh
root@75c66494ba8b:/# export UV_PYTHON_DOWNLOADS_JSON_URL=/code/crates/uv-python/my-download-metadata.json
root@75c66494ba8b:/# cat $UV_PYTHON_DOWNLOADS_JSON_URL
{}
root@75c66494ba8b:/# /code/target/release/uv python list
root@75c66494ba8b:/#
```
### JSON file with valid version
```sh
root@75c66494ba8b:/# export UV_PYTHON_DOWNLOADS_JSON_URL=/code/crates/uv-python/my-download-metadata.json
root@75c66494ba8b:/# cat $UV_PYTHON_DOWNLOADS_JSON_URL
{
"cpython-3.11.9-linux-x86_64-gnu": {
"name": "cpython",
"arch": {
"family": "x86_64",
"variant": null
},
"os": "linux",
"libc": "gnu",
"major": 3,
"minor": 11,
"patch": 9,
"prerelease": "",
"url": "https://github.com/astral-sh/python-build-standalone/releases/download/20240814/cpython-3.11.9%2B20240814-x86_64-unknown-linux-gnu-install_only_stripped.tar.gz",
"sha256": "daa487c7e73005c4426ac393273117cf0e2dc4ab9b2eeda366e04cd00eea00c9",
"variant": null
}
}
root@75c66494ba8b:/# /code/target/release/uv python list
cpython-3.11.9-linux-x86_64-gnu <download available>
root@75c66494ba8b:/#
```
### Remote Path
```sh
root@75c66494ba8b:/# export UV_PYTHON_DOWNLOADS_JSON_URL=http://a.com/file.json
root@75c66494ba8b:/# /code/target/release/uv python list
error: Remote python downloads JSON is not yet supported, please use a local path (without `file://` prefix)
```
---------
Co-authored-by: Aria Desires <aria.desires@gmail.com>
In an attempt to avoid reporting shims as their resolved
`sys.executable` path, we report the queried executable path instead.
This seems more correct for this command, broadly? Interestingly, it
changes the reported paths for Homebrew Python
<img width="1430" alt="Screenshot 2025-04-02 at 11 05 18 AM"
src="https://github.com/user-attachments/assets/0e1600e8-fb07-40c7-a6d6-56eaeb4b9293"
/>
Closes#9979
## Summary
This ended up being more involved than expected. The gist is that we
setup all the packages we want to reinstall upfront (they're passed in
on the command-line); but at that point, we don't have names for all the
packages that the user has specified. (Consider, e.g., `uv pip install
.` -- we don't have a name for `.`, so we can't add it to the list of
`Reinstall` packages.)
Now, `Reinstall` also accepts paths, so we can augment `Reinstall` based
on the user-provided paths.
Closes#12038.
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## Summary
There were no GraalPy binary wheels were available when uv support was
added, and thus the abi tag was never tested against actual packages.
Now that GraalPy publishes binary wheels to
https://www.graalvm.org/python/wheels/ we noticed the abi tag was
incorrect and the version info incorrectly determined.
## Test Plan
I tested manually:
```
> target/debug/uv venv --python graalpy testvenv
Using GraalPy 3.11.7 interpreter at: /home/tim/.pyenv/versions/graalpy-24.1.1/bin/graalpy
Creating virtual environment at: testvenv
Activate with: source testvenv/bin/activate
> cat <<EOF> uv.toml
> [[index]]
> url = "https://www.graalvm.org/python/wheels/"
> EOF
> target/debug/uv -v pip install psutil
warning: Found both a `uv.toml` file and a `[tool.uv]` section in an adjacent `pyproject.toml`. The `[tool.uv]` section will be ignored in favor of the `uv.toml` file.
DEBUG uv 0.6.6+3 (be8725553 2025-03-13)
DEBUG Searching for default Python interpreter in virtual environments
DEBUG Found `graalpy-3.11.7-linux-x86_64-gnu` at `/home/tim/dev/uv/.venv/bin/python3` (virtual environment)
DEBUG Using Python 3.11.7 environment at: .venv
DEBUG Acquired lock for `.venv`
DEBUG At least one requirement is not satisfied: psutil
DEBUG Using request timeout of 30s
DEBUG Solving with installed Python version: 3.11.7
DEBUG Solving with target Python version: >=3.11.7
DEBUG Adding direct dependency: psutil*
DEBUG Found fresh response for: https://www.graalvm.org/python/wheels/psutil/
DEBUG Searching for a compatible version of psutil (*)
DEBUG Selecting: psutil==5.9.8 [compatible] (psutil-5.9.8-graalpy311-graalpy241_311_native-manylinux_2_12_x86_64.manylinux2010_x86_64.manylinux_2_28_x86_64.whl)
DEBUG No cache entry for: https://gds.oracle.com/download/graalpy-wheels/psutil-5.9.8-graalpy311-graalpy241_311_native-manylinux_2_12_x86_64.manylinux2010_x86_64.manylinux_2_28_x86_64.whl
DEBUG Tried 1 versions: psutil 1
DEBUG marker environment resolution took 0.968s
Resolved 1 package in 971ms
DEBUG Identified uncached distribution: psutil==5.9.8
DEBUG No cache entry for: https://gds.oracle.com/download/graalpy-wheels/psutil-5.9.8-graalpy311-graalpy241_311_native-manylinux_2_12_x86_64.manylinux2010_x86_64.manylinux_2_28_x86_64.whl
Prepared 1 package in 268ms
Installed 1 package in 28ms
+ psutil==5.9.8
DEBUG Released lock at `/home/tim/dev/uv/.venv/.lock`
```
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
These changes add support for
```
uv python pin 3.12 --global
```
This adds the specified version to a `.python-version` file in the
user-level config directory. uv will now use the user-level version as a
fallback if no version is found in the project directory or its
ancestors.
Closes#4972
Following the upstream release and #12120, removes gating preventing
installation of the managed musl Python versions.
Of note
- The filtering of musl Python distributions has moved from the Rust
runtime to the metadata fetcher
- The filtering is now conditional on the PBS release date, removing all
old static musl distributions
- We could support the `+static` musl downloads in the future; right
now, they are deprioritized when selecting a variant
- I added test to CI which uses Alpine and installs numpy
## Summary
If we're looking at (e.g.) `python3.12`, and we have a `requires-python:
">=3.12.7, <3.13"`, then checking if the range includes `3.12` will
return `false`. Instead, we need to look at the lower- and upper-bound
major-minors of the `requires-python`.
Closes https://github.com/astral-sh/uv/issues/11825.
We prepend the interpreter discovery in a temporary path to `sys.path`,
which we have to strip to avoid the `sys.path` value containing a
then-deleted temp dir.
Fixes#11217
By default, a 64-bit uv does not see a 32-bit global (HKLM) installation
of Python in the registry
(https://github.com/astral-sh/uv/issues/11217). To work around this, we
manually request both 32-bit and 64-bit access using registry access
flags (https://peps.python.org/pep-0514/#sample-code). The flags have no
effect on 32-bit (https://stackoverflow.com/a/12796797/3549270).
This effect is that there is an asymmetry between discovery modes: For
the registry-based discovery using PEP 514, we discover both 32-bit and
64-bit Pythons, while for managed installations, we are stricter and
only discover those matching in bit-ness.
I tested this manually with an additional 32-bit installation of CPython
on a 64-bit machine and windows with 32-bit and 64-bit (x86_64 and i686)
builds of uv.
Three edition 2021 compatible sets of changes in preparation for the
edition 2025 split out from #11724.
In edition 2025, `gen` is a keyword, so we escape it as `r#gen`. `ref`
and `ref mut` are not allowed anymore for `&T` and `&mut T`, so we
remove them. `cargo fmt` now formats inside of macros, which the 2021
formatter doesn't undo.
## Summary
In. https://github.com/astral-sh/uv/issues/11857, we had a case of a
user that was seeing incorrect resolution results after upgrading to a
newer version of macOS, since we retained cache information about the
interpreter. This PR adds the OS name and version to the cache key for
the interpreter. This seems to be extremely cheap, and it's nice to make
this robust so that users don't run into the same confusion in the
future.
Closes https://github.com/astral-sh/uv/issues/11857.
## Summary
We use a similar strategy to the ephemeral overlay: set
`include-system-site-packages` in the `pyvenv.cfg`, and clear it
whenever we access a new environment.
Closes https://github.com/astral-sh/uv/issues/11829.
## Test Plan
Difficult to test because we don't really have support for system
packages in our test infrastructure. But...
```
> uv venv --system-site-packages
> ['', '/Users/crmarsh/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python313.zip', '/Users/crmarsh/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13', '/Users/crmarsh/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13/lib-dynload', '/Users/crmarsh/.cache/uv/archive-v0/AhKcORkaCdbBl31VweRtG/lib/python3.13/site-packages', '/Users/crmarsh/workspace/uv/foo/.venv/lib/python3.13/site-packages', '/Users/crmarsh/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13/site-packages']
```
```
> uv venv
> ['', '/Users/crmarsh/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python313.zip', '/Users/crmarsh/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13', '/Users/crmarsh/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none/lib/python3.13/lib-dynload', '/Users/crmarsh/.cache/uv/archive-v0/AhKcORkaCdbBl31VweRtG/lib/python3.13/site-packages', '/Users/crmarsh/workspace/uv/foo/.venv/lib/python3.13/site-packages']
```
## Summary
This is the pattern I see in a variety of crates, and I believe this is
preferred if you don't _need_ an owned `String`, since you can avoid the
allocation. This could be pretty impactful for us?
## Summary
* Upgrade the rust toolchain to 1.85.0. This does not increase the MSRV.
* Update windows trampoline to 1.86 nightly beta (previously in 1.85
nightly beta).
## Test Plan
Existing tests
Revert #11601 for now
We run Python interpreter discovery with `-I` (#2500) which means these
environments variables are ignored when determining `sys.path`. Unless
we decide to remove the `-I` flag from the `sys.path` query, we
shouldn't release these changes to interpreter discovery caching.
I noticed that the latest two `sync-python-releases` jobs failed due to
`httpx.RemoteProtocolError: peer closed connection without sending
complete message body (incomplete chunked read)`.
For the current python-build-standalone release, each request page
(defaulting to 30 items per page) takes about 20 seconds and loads
around 32MB of data. This extensive data load might be causing the
request to frequently fail.
In this PR, I reduced number of items per page to 10 and added
`Accept-Encoding: gzip, deflate` to the request header. Now, it takes
about 6 seconds to load, and the compressed response size has been
reduced to 534KB. I hope this would addresses the request failure.
We want to use `sys.path` for package discovery (#2500, #9849). For
that, we need to know the correct value of `sys.path`. `sys.path` is a
runtime-changeable value, which gets influenced from a lot of different
sources: Environment variables, CLI arguments, `.pth` files with
scripting, `sys.path.append()` at runtime, a distributor patching
Python, etc. We cannot capture them all accurately, especially since
it's possible to change `sys.path` mid-execution. Instead, we do a best
effort attempt at matching the user's expectation.
The assumption is that package installation generally happens in venv
site-packages, system/user site-packages (including pypy shipping
packages with std), and `PYTHONPATH`. Specifically, we reuse
`PYTHONPATH` as dedicated way for users to tell uv to include specific
directories in package discovery.
A common way to influence `sys.path` that is not using venvs is setting
`PYTHONPATH`. To support this we're capturing `PYTHONPATH` as part of
the cache invalidation, i.e. we refresh the interpreter metadata if it
changed. For completeness, we're also capturing other environment
variables documented as influencing `sys.path` or other fields in the
interpreter info.
This PR does not include reading registry values for `sys.path`
additions on Windows as documented in
https://docs.python.org/3.11/using/windows.html#finding-modules. It
notably also does not include parsing of python CLI arguments, we only
consider their environment variable versions for package installation
and listing. We could try parsing CLI flags in `uv run python`, but we'd
still miss them when Python is launched indirectly through a script, and
it's more consistent to only consider uv's own arguments and environment
variables, similar to uv's behavior in other places.
Closes https://github.com/astral-sh/uv/issues/11288
I tested the reproduction there manually.
I'm a little uncertain about this behavior, it's not true to the spirit
of `--python <dir>` selecting a target environment but this method is
only used to see if an existing environment matches for the purpose of
invalidation in projects and tools where I think we always force a
separate environment anyway?
## Summary
This is a follow-on to #11347 to use a stable directory for remote and
stdin scripts. The annoying piece here was figuring out what to use as
the cache key. For remote scripts, I'm using the URL; for stdin scripts,
there isn't any identifying information, so I'm just using a hash of the
metadata.
A user reported a homebrew Python that would raise an exception in the
interpreter probing script because `platform.mac_ver()` returned `('',
('', '', ''), '')` on his installation due to
https://github.com/Homebrew/homebrew-core/issues/206778
This is easy enough to catch and show a proper error message instead of
the Python backtrace.
Previously, we patched pkg-config .pc files to have the absolute path to
the directory where we unpack a python-build-standalone release. As
discussed in #11028, we can use ${pcfiledir} in a .pc file to indicate
paths relative to the location of the file itself.
This change was implemented in astral-sh/python-build-standalone#507, so
for newer python-build-standalone releases, we don't need to do any
patching. Optimize this case by only modifying the .pc file if an actual
change is needed (which might be helpful down the line with hard links
or something). For older releases, change uv's patch to match what
python-build-standalone now does.
Includes https://pypy.org/posts/2025/02/pypy-v7318-release.html
These are labeled as betas in the post but not anywhere obvious to me?
I'm not sure we need to portray this to users.
Co-authored-by: zanieb <2586601+zanieb@users.noreply.github.com>
## Summary
This is attempting to solve the same problem surfaced in #11208 and
#11209. However, those PRs only worked for our own managed Pythons. In
Gentoo, for example, they disable the managed Pythons, which led to
failures in the test suite, because the "base Python" returned after
creating a virtual environment would differ from the "base Python" that
you get after _querying_ an existing virtual environment.
The fix here is to apply our same base Python normalization and
discovery logic, to non-standalone / non-managed Pythons. We continue to
use `sys._base_executable` for such Pythons when creating the
virtualenv, but when _caching_, we perform this second discovery step.
Closes https://github.com/astral-sh/uv/issues/11237.
## Summary
I'm not sure that this has much of an effect in practice, but currently,
when we return a virtual environment, the `sys_base_executable ` of the
parent ends up being retained as `sys_base_executable` of the created
environment. But these can be, like, subtly different? If you have a
symlink to a Python, then for the symlink, `sys_base_executable` will be
equal to `sys_executable`. But when you create a virtual environment for
that interpreter, we'll set `home` to the resolved symlink, and so
`sys_base_executable` will be the resolved symlink too, in general.
Anyway, this means that we should now have a consistent value between
(1) returning `Virtualenv` from the creation routine and (2) querying
the created interpreter.
## Summary
It turns out that we were returning slightly different interpreter paths
on repeated `uv run --with` commands. This likely didn't affect many (or
any?) users, but it does affect our test suite, since in the test suite,
we use a symlinked interpreter.
The issue is that on first invocation, we create the virtual
environment, and that returns the path to the `python` executable in the
environment. On second invocation, we return the `python3` executable,
since that gets priority during discovery. This on its own is
potentially ok. The issue is that these resolve to different
`sys._base_executable` values in these flows... The latter gets the
correct value (since it's read from the `home` key), but the former gets
the incorrect value (since it's just the `base_executable` of the
executable that created the virtualenv, which is the symlink).
We now use the same logic to determine the "cached interpreter" as in
virtual environment creation, to ensure consistency between those paths.
Closes https://github.com/astral-sh/uv/issues/11214
Special-cases the first Python executable we find on the `PATH`,
allowing it to be considered during searches for virtual environments.
For some context, there are two stages to Python interpreter discovery
1. We find possible Python executables in various sources
2. We query the executables to determine canonical metadata about the
interpreter
We can't really be "sure" if an executable is a complaint virtual
environment during (1), we need to query the interpreter first. This
means that if you're only allowed to installed into virtual
environments, we'll query every interpreter on your PATH. This is not
performant, and causes confusion for users. Notably, I recently improved
error messaging when we can't find any valid interpreters, by showing
the error message we encounter while querying an interpreter (if any).
However, this is problematic when there's an error for an interpreter
that is not relevant to your search. In
https://github.com/astral-sh/uv/pull/11143, I added filtering to avoid
querying additional interpreters, but that regressed some user
experiences where they were relying on us finding implicitly active
virtual environments via the PATH.
Closes https://github.com/astral-sh/uv/issues/11048
This brings the `PythonEnvironment::from_root` behavior in-line with the
rest of uv Python discovery behavior (and in-line with pip). It's not
clear why we were canonicalizing the path in the first place here.
## Summary
In preview mode on windows, register und un-register the managed python build standalone installations in the Windows registry following PEP 514.
We write the values defined in the PEP plus the download URL and hash. We add an entry when installing a version, remove an entry when uninstalling and removing all values when uninstalling with `--all`. We update entries only by overwriting existing values, there is no "syncing" involved.
Since they are not official builds, pbs gets a prefix. `py -V:Astral/CPython3.13.1` works, `py -3.13` doesn't.
```
$ py --list-paths
-V:3.12 * C:\Users\Konsti\AppData\Local\Programs\Python\Python312\python.exe
-V:3.11.9 C:\Users\Konsti\.pyenv\pyenv-win\versions\3.11.9\python.exe
-V:3.11 C:\Users\micro\AppData\Local\Programs\Python\Python311\python.exe
-V:3.8 C:\Users\micro\AppData\Local\Programs\Python\Python38\python.exe
-V:Astral/CPython3.13.1 C:\Users\Konsti\AppData\Roaming\uv\data\python\cpython-3.13.1-windows-x86_64-none\python.exe
```
Registry errors are reported but not fatal, except for operations on the company key since it's not bound to any specific python interpreter.
On uninstallation, we prune registry entries that have no matching Python installation (i.e. broken entries).
The code uses the official `windows_registry` crate of the `winreg` crate.
Best reviewed commit-by-commit.
## Test Plan
We're reusing an existing system check to test different (un)installation scenarios.
Previously, these errors would only be visible in the debug logs as
"Skipping bad interpreter ..." which can lead us to making some
ridiculous claims like "There is no virtual environment" or "Python is
not installed" when really we just failed to query the interpreter for
some reason.
We show the first error, sort of arbitrarily — but I think it matches
user expectation, i.e., this would be the first Python on your PATH.
Related to #10713
See https://github.com/astral-sh/uv/issues/4204 for motivation
This doesn't really reach the user experience I'd expect — i.e., we end
up saying a virtual environment "does not exist" which is a little
silly. However, I think improving the error messaging on interpreter
queries in general should be solved separately. I did one small
"general" change in
89e11d0222
— otherwise we don't show the message at all.
---------
Co-authored-by: konsti <konstin@mailbox.org>
## Summary
For example, `cargo run python install
cpython-3.12.8-linux-x86_64_v3-gnu` (on macOS) shouldn't attempt to
patch the dylib. At present, it leads to this warning:
```
warning: Failed to patch the install name of the dynamic library for /Users/crmarsh/.local/share/uv/python/cpython-3.12.8-linux-x86_64_v3-gnu/bin/python3.12. This may cause issues when building Python native extensions.
Underlying error: Failed to update the install name of the Python dynamic library located at `/Users/crmarsh/.local/share/uv/python/cpython-3.12.8-linux-x86_64_v3-gnu/lib/libpython3.12.dylib`
```
## Summary
Fixes#10598
## Test Plan
Looking for input here @zanieb. How/where would you include tests for
this?
More broadly: do we want a failure to perform the rename to be a hard
error? Or should it start out as a warning?
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
## Summary
This PR extends the thinking in #10525 to platform tags, and then uses
the structured tag enums everywhere, rather than passing around strings.
I think this is a big improvement! It means we're no longer doing ad hoc
tag parsing all over the place.
## Summary
Allows uv to recognize the ARMv5TE platform. This platform is currently
supported on Debian distributions. It is an older 32 bit platform mostly
used in embedded devices, currently in rust tier 2.5 so it requires
cross compilation.
Fixes#10157 .
## Test Plan
Tested directly on device by applying a slightly different patch to tag
0.5.4 which is used by the current Home Assistant version (2024.12.5).
After the patch Home Assistant is able to recognize the Python venv and
setup its dependencies.
Patched uv was built with
```
$ CARGO_TARGET_ARMV5TE_UNKNOWN_LINUX_GNUEABI_LINKER="/usr/bin/arm-linux-gnueabi-gcc" maturin build --release --target armv5te-unknown-linux-gnueabi --manylinux off
```
The target wheel was then moved on the device and installed via pip
install.
## Summary
We had a bug in our handling of escape sequences that caused us to
duplicate backslashes. If you installed repeatedly, we'd keep doubling
them, leading to an exponential blowup.
Closes#10060.
When using a 32-bit OS on 64-bit host, almost all Python std methods
will report a 64-bit aarch64, but we most not install 64-bit executables
since Python is actually 32-bit, identifiable through
`struct.calcsize("P") == 4`.
Porting
4dc334c86d/src/packaging/tags.py (L539-L543)
to uv.
Tested on a raspberry pi 4 with a 64-bit host raspbian and `docker run
-it --rm -v arm32v7/ubuntu` as 32-bit "host".
Fixes#9842
## Summary
This PR makes the behavior in https://github.com/astral-sh/uv/pull/9827
the default: we try to select the latest supported package version for
each supported Python version, but we still optimize for choosing fewer
versions when stratifying by platform.
However, you can opt out with `--fork-strategy fewest`.
Closes https://github.com/astral-sh/uv/issues/7190.
## Summary
This PR reimplements
[`sysconfigpatcher`](https://github.com/bluss/sysconfigpatcher) in Rust
and applies it to our Python installations at install-time, ensuring
that the `sysconfig` data is more likely to be correct.
For now, we only rewrite prefixes (i.e., any path that starts with
`/install` gets rewritten to the correct absolute path for the current
machine).
Unlike `sysconfigpatcher`, this PR does not yet do any of the following:
- Patch `pkginfo` files.
- Change `clang` references to `cc`.
A few things that we should do as follow-ups, in my opinion:
1. Rewrite
[`AR`](c1ebf8ab92/src/sysconfigpatcher.py (L61)).
2. Remove `-isysroot`, which we already do for newer builds.
Supersedes https://github.com/astral-sh/uv/pull/8517 with an alternative
approach of making all the variants available instead of replacing the
x86_64 (v1) variant with x86_64_v2.
Doesn't add automatic inference of the supported instructions, but that
should be doable per @charliermarsh's comment there. Going to do it as a
follow-up since this has been pretty time consuming.
e.g.,
```
❯ cargo run -q -- python install cpython-3.12.8-linux-x86_64_v3-gnu
Installed Python 3.12.8 in 2.72s
+ cpython-3.12.8-linux-x86_64_v3-gnu
```
Co-authored-by: j178 <10510431+j178@users.noreply.github.com>
## Summary
Fix#8075.
Invalid discovered environments in the working directory should be
filtered out.
## Test Plan
- Test python_find
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
## Summary
This PR adds `--install-dir` argument for the following commands:
- `uv python install`
- `uv python uninstall`
The `UV_PYTHON_INSTALL_DIR` env variable can be used to set it
(previously it was also used internally).
Any more commands we would want to add this to?
## Test Plan
For now just manual test (works on my machine hehe)
```
❯ ./target/debug/uv python install --install-dir /tmp/pythons 3.8.12
Searching for Python versions matching: Python 3.8.12
Installed Python 3.8.12 in 4.31s
+ cpython-3.8.12-linux-x86_64-gnu
❯ /tmp/pythons/cpython-3.8.12-linux-x86_64-gnu/bin/python --help
usage: /tmp/pythons/cpython-3.8.12-linux-x86_64-gnu/bin/python [option] ... [-c cmd | -m mod | file | -] [arg] ...
```
Open to add some tests after the initial feedback.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
## Summary
I'm not sure why this hasn't come up before... But it looks like this
method is only looking at `python.exe` and `python3.exe`? From the user
screenshots, the `python3.12.exe` and `python3.13.exe` are also present,
though.
Closes https://github.com/astral-sh/uv/issues/9667.
The `SysVersion` registry entry may or may not include the patch
version, so if we encounter a registry entry without a patch version, we
must not assume that the patch version is 0.
```
Name Property
---- --------
3.9 DisplayName : Python 3.9 (64-bit)
SupportUrl : https://www.python.org/
Version : 3.9.13
SysVersion : 3.9
SysArchitecture : 64bit
Hive: HKEY_CURRENT_USER\Software\Python\PythonCore\3.9
```
Confirmed the fix manually.
Fixes#9668
This pull request is best viewed with [whitespace
hidden](https://github.com/astral-sh/uv/pull/8650/files?diff=unified&w=1)
Adds a `--default` flag to `uv python install` in preview. This includes
a `python` and `python{major}` executable in addition to the
`python{major}.{minor}` executable. We will replace uv-managed
executables, but externally managed executables require the `--force`
flag to overwrite.
If you run `uv python install` (without arguments), we include the
`--default` flag implicitly to populate `python` and `python3` for the
"default" install version.
In the future, we should add a warning if the installed executable isn't
at the front of the PATH.
## Summary
After #9524, I noticed two other dependencies were misaligned.
Since the previous PR has been merged, I was thinking I could submit
those two misses.
Of course, open to any comments/decline!
Thanks!! 🙂
## Test Plan
All units tests are still passing on my side. Let's see with the
pull-request CI again 😄
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## Summary
While working on potential bug fixes with temporary files on Windows (I
think I am currently ecountering the same issue as #2810)
I noticed that sub-workspaces were not all having the same `tempfile`
version. And they were not relying on the cargo root project dependency.
I don't know at all if it was done on purpose or not.
(I also wanted to override the root dependency with a local source but
it was not possible due to sub-workspaces not relying on the same).
The root lockfile already pinned to the `3.14.0`. Some sub-workspaces
were depending on the `3.12.0`, some others on the `3.14.0`. So I
updated the root `Cargo.toml` to the `3.14.0`.
Feel free to decline if it was done on purpose! No worries at all
🙂
Thanks!
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
All units tests are still passing on my side. Let's see with the
pull-request CI 😄
## Summary
A lot of good new lints, and most importantly, error stabilizations. I
tried to find a few usages of the new stabilizations, but I'm sure there
are more.
IIUC, this _does_ require bumping our MSRV.
As discussed in https://github.com/astral-sh/uv/issues/9423, it's
confusing that we do not allow `uv sync` just because the `.venv`
directory _exists_. This change matches `uv venv`.
_get_glibc_version() can after #9005 return either (0, 0) if glibc
string is missing or (-1, -1) if the string can't be parsed. There was
no need to change missing string to (0, 0).
Also, move back indentation to make it easier to understand.
## Summary
On Termux, uv currently fails to find any interpreter because it can't
find a glibc version, because there isn't one. But the Python
interpreter is still functional nonetheless.
So, when glibc cannot be found, simply return 0 for the version numbers
and mark the interpreter as being incompatible with manylinux
I really don't know if this is the right way to address this, but I can
attest that manual testing shows uv appears to be fully functional, at
least for pip and virtualenvs.
Fixes#7373
## Test Plan
I tried running the test suite, and after some tweaks, a good portion of
the test suite passes as well. A significant number of tests fail, but
this appears to be due to minor differences in output, like warnings
about hard links not working (hard links are completely disallowed on
Android), differences in the number of files removed, etc. The test
suite seems to be very sensitive to minor variations in output.
When building only a single crate in the workspace to run its tests, we
often recompile a lot of other, unrelated crates. Whenever cargo has a
different set of crate features, it needs to recompile. By moving some
features (non-exhaustive for now) to the workspace level, we always
activate them an avoid recompiling.
The cargo docs mismatch the behavior of cargo around default-deps, so I
filed that upstream and left most `default-features` mismatches:
https://github.com/rust-lang/cargo/issues/14841.
Reference script:
```python
import tomllib
from collections import defaultdict
from pathlib import Path
uv = Path("/home/konsti/projects/uv")
skip_list = ["uv-trampoline", "uv-dev", "uv-performance-flate2-backend", "uv-performance-memory-allocator"]
root_feature_map = defaultdict(set)
root_default_features = defaultdict(bool)
cargo_toml = tomllib.loads(uv.joinpath("Cargo.toml").read_text())
for dep, declaration in cargo_toml["workspace"]["dependencies"].items():
root_default_features[dep] = root_default_features[dep] or declaration.get("default-features", True)
root_feature_map[dep].update(declaration.get("features", []))
feature_map = defaultdict(set)
default_features = defaultdict(bool)
for crate in uv.joinpath("crates").iterdir():
if crate.name in skip_list:
continue
if not crate.joinpath("Cargo.toml").is_file():
continue
cargo_toml = tomllib.loads(crate.joinpath("Cargo.toml").read_text())
for dep, declaration in cargo_toml.get("dependencies", {}).items():
# If any item uses default features, they are used everywhere
default_features[dep] = default_features[dep] or declaration.get("default-features", True)
feature_map[dep].update(declaration.get("features", []))
for dep, features in sorted(feature_map.items()):
features = features - root_feature_map.get(dep, set())
if not features and default_features[dep] == root_default_features[dep]:
continue
print(dep, default_features[dep], sorted(features))
```
## Summary
These were moved as part of a broader refactor to create a single
integration test module. That "single integration test module" did
indeed have a big impact on compile times, which is great! But we aren't
seeing any benefit from moving these tests into their own files (despite
the claim in [this blog
post](https://matklad.github.io/2021/02/27/delete-cargo-integration-tests.html),
I see the same compilation pattern regardless of where the tests are
located). Plus, we don't have many of these, and same-file tests is such
a strong Rust convention.
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## Summary
Adds python-install-mirror and pypy-install-mirror as keys for uv.toml,
and cli args for `uv python install`.
Could leave the cli args out if we think the env vars and configs are
sufficient.
Fixes#8186
<!-- What's the purpose of the change? What does it do, and why? -->
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
This restores behavior previously removed in
https://github.com/astral-sh/uv/pull/7649.
I thought it'd be clearer (and simpler) to have a consistent Python
executable name ordering. However, we've seen some cases where this can
be surprising and, in combination with #8481, can result in incorrect
behavior. For example, see https://github.com/astral-sh/uv/issues/9046
where we prefer `python3` over `python3.12` in the same directory even
though `python3.12` was requested. While `python3` and `python3.12` both
point to valid Python 3.12 environments there, the expectation is that
when `python3.12` is requested that the `python3.12` executable is
preferred. This expectation may be less obvious if the user requests
`python@3.12`, but uv does not distinguish between these request forms.
Similarly, this may be surprising as by default uv prefers `python` over
`python3` but when requesting `python3.12` the preference will be
swapped.
Implement a full working version of local version semantics. The (AFAIA)
major move towards this was implemented in #2430. This added support
such that the version specifier `torch==2.1.0+cpu` would install
`torch@2.1.0+cpu` and consider `torch@2.1.0+cpu` a valid way to satisfy
the requirement `torch==2.1.0` in further dependency resolution.
In this feature, we more fully support local version semantics. Namely,
we now allow `torch==2.1.0` to install `torch@2.1.0+cpu` regardless of
whether `torch@2.1.0` (no local tag) actually exists.
We do this by adding an internal-only `Max` value to local versions that
compare greater to all other local versions. Then we can translate
`torch==2.1.0` into bounds: greater than 2.1.0 with no local tag and
less than 2.1.0 with the `Max` local tag.
Depends on https://github.com/astral-sh/packse/pull/227.
Uses #6369 for test coverage.
Updates version file discovery to search up into parent directories.
Also refactors Python request determination to avoid duplicating the
user request / version file / workspace lookup logic in every command
(this supersedes the work started in
https://github.com/astral-sh/uv/pull/6372).
There is a bit of remaining work here, mostly around documentation.
There are some edge-cases where we don't use the refactored request
utility, like `uv build` — I'm not sure how I'm going to handle that yet
as it needs a separate root directory.
e.g.
```
❯ echo "anyio" | cargo run -q -- pip compile - -v
DEBUG uv 0.4.30 (107ab3d71 2024-11-07)
DEBUG Starting Python discovery for a default Python
DEBUG Looking for exact match for request a default Python
DEBUG Searching for default Python interpreter in virtual environments, managed installations, or search path
DEBUG Found `cpython-3.12.7-macos-aarch64-none` at `/Users/zb/workspace/uv/.venv/bin/python3` (virtual environment)
```
```
❯ cargo run -q -- pip install anyio -v
DEBUG uv 0.4.30 (107ab3d71 2024-11-07)
DEBUG Searching for default Python interpreter in virtual environments
DEBUG Found `cpython-3.12.7-macos-aarch64-none` at `/Users/zb/workspace/uv/.venv/bin/python3` (virtual environment)
```
vs
```
❯ uv pip install anyio -v
DEBUG uv 0.4.30 (61ed2a236 2024-11-04)
DEBUG Searching for default Python interpreter in system path
DEBUG Found `cpython-3.12.7-macos-aarch64-none` at `/Users/zb/workspace/uv/.venv/bin/python3` (virtual environment)
```
```
❯ echo "anyio" | uv pip compile - -v
DEBUG uv 0.4.30 (61ed2a236 2024-11-04)
DEBUG Starting Python discovery for a default Python
DEBUG Looking for exact match for request a default Python
DEBUG Searching for default Python interpreter in managed installations or system path
DEBUG Found `cpython-3.12.7-macos-aarch64-none` at `/Users/zb/workspace/uv/.venv/bin/python3` (virtual environment)
```
Previously, we'd use the `--reinstall` flag to determine if we should
replace existing Python executables in the bin directory during an
install. There are a few problems with this:
- We replace executables we don't manage
- We can replace executables from other uv Python installations during
reinstall (surprising)
- We don't do the "right" thing when installing patch versions e.g.
installing `3.12.4` then `3.12.6` would fail without the reinstall flag
In `uv tool`, we have separate `--force` and `--reinstall` concepts.
Here we separate the flags (`--force` was previously just a
`--reinstall` alias) and add inspection of the existing executables to
inform a decision on replacement.
In brief, we will:
- Replace any executables with `--force`
- Replace executables for the same installation with `--reinstall`
- Replace executables for an older patch version by default
This updates the surrounding code to use the new ResolverEnvironment
type. In some cases, this simplifies caller code by removing case
analysis. There *shouldn't* be any behavior changes here. Some test
snapshots were updated to account for some minor tweaks to error
messages.
I didn't split this up into separate commits because it would have been
too difficult/costly.
Incorporating #8637 into #8458
- Adds `python-managed` feature selection to Windows CI for `python
install` tests
- Adds trampoline sniffing utilities to `uv-trampoline-builder`
- Uses a trampoline to install Python executables into the `PATH` on
Windows
Pulling out of https://github.com/astral-sh/uv/pull/8650 for
readability.
Trying to clean this up to simplify extensions in the future. This is
not a strict refactor, there are behavioral changes here.
- Adds some structs for managing state.
- Addresses some likely inconsistent behavior for weird edge-cases.
- We fill platform information before checking if a request is
satisfied.
- We error earlier if we can't find a download for the request, i.e.,
even if you somehow have it installed.
- Only reports versions as uninstalled if a download actually replaces
them.
- Moves some of the default output to tracing messages.
- Even if an installation was already satisfied, we'll check that it is
setup properly
Updates `uv python install` to link `python3.x` in the executable
directory (i.e., `~/.local/bin`) to the the managed interpreter path.
Includes
- #8569
- #8571
Remaining work
- #8663
- #8650
- Add an opt-out setting and flag
- Update documentation
## Summary
This PR delays the removal of an existing version after downloading the
new version when running `uv python install --reinstall`.
If the download fails, we can keep the existing version working.
## Test Plan
```console
$ cargo run -- python install 3.13
$ cargo run -- python install --reinstall 3.13 # when downloading, `ctrl-c` to interrupt
$ cargo run -- python list
```
Closes https://github.com/astral-sh/uv/issues/8228
e.g., on this branch
```
❯ uv python install 3.13t 3.13
❯ cargo build
❯ cargo run -q --bin uvx -- --from build python -c "import sys; print(sys.base_prefix)"
/Users/zb/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none
❯ cargo run -q --bin uvx -- -p 3.13 --from build python -c "import sys; print(sys.base_prefix)"
/Users/zb/.local/share/uv/python/cpython-3.13.0-macos-aarch64-none
❯ cargo run -q --bin uvx -- -p 3.13t --from build python -c "import sys; print(sys.base_prefix)"
/Users/zb/.local/share/uv/python/cpython-3.13.0+freethreaded-macos-aarch64-none
```
and on main
```
❯ cargo build
❯ cargo run -q --bin uvx -- --from build python -c "import sys; print(sys.base_prefix)"
Installed 3 packages in 12ms
/Users/zb/.local/share/uv/python/cpython-3.13.0+freethreaded-macos-aarch64-none
```
I want to add more test coverage around this, but I've noticed the
free-threaded discovery tests are a bit off as-is and it'll be a bigger
task. I think the recent bugs around discovery indicate we should invest
more into that test framework.
Closes https://github.com/astral-sh/uv/issues/8213
I didn't mean to remove these when updating the regular expression.
Arguably, they shouldn't be used anymore, but we should make that choice
with intention.
As mentioned in https://github.com/astral-sh/uv/issues/8189
We only checked if an interpreter was free-threaded _when_ free-threaded
variants were requested. But we should not use free-threaded
interpreters unless explicitly requested.
## Summary
This PR declares and documents all environment variables that are used
in one way or another in `uv`, either internally, or externally, or
transitively under a common struct.
I think over time as uv has grown there's been many environment
variables introduced. Its harder to know which ones exists, which ones
are missing, what they're used for, or where are they used across the
code. The docs only documents a handful of them, for others you'd have
to dive into the code and inspect across crates to know which crates
they're used on or where they're relevant.
This PR is a starting attempt to unify them, make it easier to discover
which ones we have, and maybe unlock future posibilities in automating
generating documentation for them.
I think we can split out into multiple structs later to better organize,
but given the high influx of PR's and possibly new environment variables
introduced/re-used, it would be hard to try to organize them all now
into their proper namespaced struct while this is all happening given
merge conflicts and/or keeping up to date.
I don't think this has any impact on performance as they all should
still be inlined, although it may affect local build times on changes to
the environment vars as more crates would likely need a rebuild. Lastly,
some of them are declared but not used in the code, for example those in
`build.rs`. I left them declared because I still think it's useful to at
least have a reference.
Did I miss any? Are their initial docs cohesive?
Note, `uv-static` is a terrible name for a new crate, thoughts? Others
considered `uv-vars`, `uv-consts`.
## Test Plan
Existing tests
As per
https://matklad.github.io/2021/02/27/delete-cargo-integration-tests.html
Before that, there were 91 separate integration tests binary.
(As discussed on Discord — I've done the `uv` crate, there's still a few
more commits coming before this is mergeable, and I want to see how it
performs in CI and locally).
## Summary
Closes#7977. Makes `PythonDownloadRequest` account for the prerelease
part if allowed. Also stores the prerelease in `PythonInstallationKey`
directly as a `Prerelease` rather than a string.
## Test Plan
Correctly picks the relevant prerelease (rather than picking the most
recent one):
```
λ cargo run python install 3.13.0rc2
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
Running `target/debug/uv python install 3.13.0rc2`
Searching for Python versions matching: Python 3.13rc2
cpython-3.13.0rc2-macos-aarch64-none ------------------------------ 457.81 KiB/14.73 MiB ^C
λ cargo run python install 3.13.0rc3
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
Running `target/debug/uv python install 3.13.0rc3`
Searching for Python versions matching: Python 3.13rc3
Found existing installation for Python 3.13rc3: cpython-3.13.0rc3-macos-aarch64-none
```
Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>
## Summary
This PR adds the ability to list available scripts in the environment
when `uv run` is invoked without any arguments.
It somewhat mimics the behavior of `rye run` command
(See https://rye.astral.sh/guide/commands/run).
This is an attempt to fix#4024.
## Test Plan
I added test cases. The CI pipeline should pass.
### Manuel Tests
```shell
❯ uv run
Provide a command or script to invoke with `uv run <command>` or `uv run script.py`.
The following scripts are available:
normalizer
python
python3
python3.12
See `uv run --help` for more information.
```
---------
Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>
Co-authored-by: Zanie Blue <contact@zanie.dev>
## Summary
PythonDownloadKey (cpython-3.13.0rc3-darwin-aarch64-none) and
PlatformTriple in `fetch-download-metadata.py` have a slight
inconsistency in the ordering of `os` and `arch`. In PythonDownloadKey,
`os` precedes `arch`, while in PlatformTriple, `arch` comes before
`platform` (equivalent to os). This difference in ordering affects the
sorting logic, giving arch higher priority than platform in the
`download-metadata.json` file, leading to a little bit of unexpected
order of entries.
Before:
<img width="676" alt="image"
src="https://github.com/user-attachments/assets/adb24a2e-da70-4a09-a702-4b5d71600b2c">
After:
<img width="725" alt="image"
src="https://github.com/user-attachments/assets/c6c76e6a-d3fd-43dc-bfb0-b3a4a3fe2b6b">
This PR adds support for upgrading the build environment of tools with
the addition of a ```--python``` argument to ```uv upgrade```, as
specified in #7471.
Some things to note:
- I added support for individual packages — I didn't think there was a
good reason for ```--python``` to only apply to all packages
- Upgrading with ```--python``` also upgrades the package itself — I
think this is fair as if a user wants to _strictly_ switch the version
of Python being used to build a tool's environment they can use ```uv
install```. This behavior can of course be modified if others don't
agree!
Closes https://github.com/astral-sh/uv/issues/6297.
Closes https://github.com/astral-sh/uv/issues/7471.
Closes#7118
This only really affects managed interpreters, as we exclude alternative
Python implementations from the search path during the
`VersionRequest::executable_names` part of discovery.
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## Summary
closes#4828
First iteration for an implementation. I need to add more tests but
wanted your opinion on the implementation first.
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
Currently tested using the following command but will add tests shortly:
```console
D:\repo\uv> cargo run venv -p 3.13t && .venv\Scripts\python.exe
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
Running `target\debug\uv.exe venv -p 3.13t`
Using Python 3.13.0rc1 interpreter at: C:\Users\bschoen\AppData\Local\Programs\Python\Python313\python3.13t.exe
Creating virtualenv at: .venv
Activate with: .venv\Scripts\activate
Python 3.13.0rc1 experimental free-threading build (tags/v3.13.0rc1:e4a3e78, Jul 31 2024, 21:06:58) [MSC v.1940 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
```
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
There are two parts to this.
The first is a restructuring and refactoring. We had some debt around
expected executable name generation, which we address here by
consolidating into a single function that generates a combination of
names. This includes a bit of extra code around free-threaded variants
because this was written on top of #7431 — I'll rebase that on top of
this.
The second addresses some bugs around alternative implementations.
Notably, `uv python list` does not discovery executables with
alternative implementation names. Now, we properly generate all of the
executable names for `VersionRequest::Any` (originally implemented in
https://github.com/astral-sh/uv/pull/7508) to properly show all the
implementations we can find:
```
❯ cargo run -q -- python list --no-python-downloads
cpython-3.12.6-macos-aarch64-none /opt/homebrew/opt/python@3.12/bin/python3.12 -> ../Frameworks/Python.framework/Versions/3.12/bin/python3.12
cpython-3.11.10-macos-aarch64-none /opt/homebrew/opt/python@3.11/bin/python3.11 -> ../Frameworks/Python.framework/Versions/3.11/bin/python3.11
cpython-3.9.6-macos-aarch64-none /Library/Developer/CommandLineTools/usr/bin/python3 -> ../../Library/Frameworks/Python3.framework/Versions/3.9/bin/python3
pypy-3.10.14-macos-aarch64-none /opt/homebrew/bin/pypy3 -> ../Cellar/pypy3.10/7.3.17/bin/pypy3
```
While doing both of these changes, I ended up changing the priority of
interpreter discovery slightly. For example, given that the executables
are in the same directory, do we query `python` or `python3.10` first
when you request `--python 3.10`? Previously, we'd check `python3.10`
but I think that was an incorrect optimization. I think we should always
prefer the bare name (i.e. `python`) first. Similarly, this applies to
`python` and an executable for an alternative implementation like
`pypy`. If it's not compatible with the request, we'll skip it anyway.
We might have to query more interpreters with this approach but it seems
rare.
Closes https://github.com/astral-sh/uv/issues/7286 superseding
https://github.com/astral-sh/uv/pull/7508
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