We were checking whether a path was an executable in a virtual
environment or the base directory of a virtual environment in multiple
places in the codebase. This PR consolidates this logic into one place.
Closes#13947.
I was looking into `uv tool` not supporting version files, and noticed
this implementation was confusing and skipped handling like a tracing
log if `--no-config` excludes selection a file. I've refactored it in
preparation for the next change.
> NOTE: The PRs that were merged into this feature branch have all been
independently reviewed. But it's also useful to see all of the changes
in their final form. I've added comments to significant changes
throughout the PR to aid discussion.
This PR introduces transparent Python version upgrades to uv, allowing
for a smoother experience when upgrading to new patch versions.
Previously, upgrading Python patch versions required manual updates to
each virtual environment. Now, virtual environments can transparently
upgrade to newer patch versions.
Due to significant changes in how uv installs and executes managed
Python executables, this functionality is initially available behind a
`--preview` flag. Once an installation has been made upgradeable through
`--preview`, subsequent operations (like `uv venv -p 3.10` or patch
upgrades) will work without requiring the flag again. This is
accomplished by checking for the existence of a minor version symlink
directory (or junction on Windows).
### Features
* New `uv python upgrade` command to upgrade installed Python versions
to the latest available patch release:
```
# Upgrade specific minor version
uv python upgrade 3.12 --preview
# Upgrade all installed minor versions
uv python upgrade --preview
```
* Transparent upgrades also occur when installing newer patch versions:
```
uv python install 3.10.8 --preview
# Automatically upgrades existing 3.10 environments
uv python install 3.10.18
```
* Support for transparently upgradeable Python `bin` installations via
`--preview` flag
```
uv python install 3.13 --preview
# Automatically upgrades the `bin` installation if there is a newer patch version available
uv python upgrade 3.13 --preview
```
* Virtual environments can still be tied to a patch version if desired
(ignoring patch upgrades):
```
uv venv -p 3.10.8
```
### Implementation
Transparent upgrades are implemented using:
* Minor version symlink directories (Unix) or junctions (Windows)
* On Windows, trampolines simulate paths with junctions
* Symlink directory naming follows Python build standalone format: e.g.,
`cpython-3.10-macos-aarch64-none`
* Upgrades are scoped to the minor version key (as represented in the
naming format: implementation-minor version+variant-os-arch-libc)
* If the context does not provide a patch version request and the
interpreter is from a managed CPython installation, the `Interpreter`
used by `uv python run` will use the full symlink directory executable
path when available, enabling transparently upgradeable environments
created with the `venv` module (`uv run python -m venv`)
New types:
* `PythonMinorVersionLink`: in a sense, the core type for this PR, this
is a representation of a minor version symlink directory (or junction on
Windows) that points to the highest installed managed CPython patch
version for a minor version key.
* `PythonInstallationMinorVersionKey`: provides a view into a
`PythonInstallationKey` that excludes the patch and prerelease. This is
used for grouping installations by minor version key (e.g., to find the
highest available patch installation for that minor version key) and for
minor version directory naming.
### Compatibility
* Supports virtual environments created with:
* `uv venv`
* `uv run python -m venv` (using managed Python that was installed or
upgraded with `--preview`)
* Virtual environments created within these environments
* Existing virtual environments from before these changes continue to
work but aren't transparently upgradeable without being recreated
* Supports both standard Python (`python3.10`) and freethreaded Python
(`python3.10t`)
* Support for transparently upgrades is currently only available for
managed CPython installations
Closes#7287Closes#7325Closes#7892Closes#9031Closes#12977
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
When working on support for reading global Python pins in tool
operations, I noticed that we weren't using the canonicalized Python
request in receipts — we were using the raw string provided by the user.
Since we'll need to compare these values, we should be using the
canonicalized string.
The `Tool` and `ToolReceipt` types have been updated to hold a
`PythonRequest` instead of a `String`, and `Serialize` was implemented
for `PythonRequest` so canonicalization can happen at the edge instead
of being the caller's responsibility.
Fix `uv run -p 3.7` by not using a walrus operator. Python 3.7 isn't
really supported anymore, but there's no reason to break interpreter
discovery for it.
We always ignore the `clippy::struct_excessive_bools` rule and formerly
annotated this at the function level. This PR specifies the allow in
`workspace.lints.clippy` in `Cargo.toml`.
Using a companion change in the middleware
(https://github.com/TrueLayer/reqwest-middleware/pull/235, forked&tagged
pending review), we can check and show retries for HTTP status core
errors, to consistently report retries again.
We fix two cases:
* Show retries for status code errors for cache client requests
* Show retries for status code errors for Python download requests
Not handled:
* Show previous retries when a distribution download fails mid-streaming
* Perform retries when a distribution download fails mid-streaming
* Show previous retries when a Python download fails mid-streaming
* Perform retries when a Python download fails mid-streaming
In the case where we have platform information in a Python request, we
should filter managed Python distributions by it prior to querying them.
Closes https://github.com/astral-sh/uv/issues/13935
---------
Co-authored-by: Aria Desires <aria.desires@gmail.com>
Surprisingly, we weren't locking during `uv sync` so far, so running `uv
sync` in parallel could cause errors in filesystem races.
I've also added locks to `uv add` and `uv remove` which concurrently
modify `pyproject.toml`. These locks only apply after we determined the
interpreter, so they don't actually prevent computing the same thing
twice when running `uv add` in parallel.
All other subcommands that I checked were already locking (with no claim
to exhaustiveness)
Fixes#12751
# Test Plan
I don't have CI-sized reproducer for this.
```toml
[project]
name = "debug"
version = "0.1.0"
requires-python = ">=3.12"
dependencies = [
"boto3>=1.38.30",
"fastapi>=0.115.12",
"numba>=0.61.2",
"polars>=1.30.0",
"protobuf>=6.31.1",
"pyarrow>=20.0.0",
"pydantic>=2.11.5",
"requests>=2.32.3",
"urllib3>=2.4.0",
"scikit-learn>=1.6.1",
"jupyter>=1.1.1",
]
[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"
```
```
rm -rf .venv && parallel -n0 "uv sync -q" ::: {1..10}
```
This includes some initial work on adding Pyodide support (issue
#12729). It is enough to get
```
uv pip compile -p /path/to/pyodide --extra-index-url file:/path/to/simple-index
```
to work which should already be quite useful.
## Test Plan
* added a unit test for `pyodide_platform`
* integration tested manually with:
```
cargo run pip install \
-p /home/rchatham/Documents/programming/tmp/pyodide-venv-test/.pyodide-xbuildenv-0.29.3/0.27.4/xbuildenv/pyodide-root/dist/python \
--extra-index-url file:/home/rchatham/Documents/programming/tmp/pyodide-venv-test/.pyodide-xbuildenv-0.29.3/0.27.4/xbuildenv/pyodide-root/package_index \
--index-strategy unsafe-best-match --target blah --no-build \
numpy pydantic
```
---------
Co-authored-by: konsti <konstin@mailbox.org>
Co-authored-by: Zanie Blue <contact@zanie.dev>
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [tempfile](https://stebalien.com/projects/tempfile-rs/)
([source](https://redirect.github.com/Stebalien/tempfile)) |
workspace.dependencies | minor | `3.19.1` -> `3.20.0` |
---
> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.
---
### Release Notes
<details>
<summary>Stebalien/tempfile (tempfile)</summary>
###
[`v3.20.0`](https://redirect.github.com/Stebalien/tempfile/blob/HEAD/CHANGELOG.md#3200)
[Compare
Source](https://redirect.github.com/Stebalien/tempfile/compare/v3.19.1...v3.20.0)
This release mostly unifies the behavior/capabilities around "keeping"
temporary files:
- Rename `Builder::keep(bool)` (via deprecation) to
`Builder::disable_cleanup(bool)` to make it clear that behaves
differently from `NamedTempFile::keep()`. The former disables automatic
cleanup while the latter *consumes* the `NamedTempFile` object entirely
and unsets the "temporary file" attribute (on Windows).
- Rename `TempDir::into_path` (via deprecation) to `TempDir::keep` to
mirror `NamedTempFile::keep`.
- Add `TempDir::disable_cleanup`, `NamedTempFile::disable_cleanup`, and
`TempPath::disable_cleanup` making it possible to disable automatic
cleanup in-place *after* creating a temporary file/directory (equivalent
to calling `Builder::disable_cleanup` before creating the
file/directory).
Additionally, it adds a few spooled temporary file features:
- Add `SpooledTempFile::into_file` for turning a `SpooledTempFile` into
a regular unnamed temporary file, writing it to the backing storage
("rolling" it) if it was still stored in-memory.
- Add `spooled_tempfile_in` and `SpooledTempFile::new_in` methods for
creating spooled temporary files in a specific directory. This makes it
possible to choose the backing device for your spooled temporary file
which is rather important on Linux where the default temporary directory
is likely backed by memory (defeating the entire point of having a
spooled temporary file).
Finally, this release improves documentation, especially the top-level
documentation explaining which temporary file type to use.
**BREAKING** for those with `deny(warnings)`:
- `Builder::keep` deprecated in favor of `Builder::disable_cleanup`.
- `TempDir::into_path` is deprecated in favor of `TempDir::keep`.
**BREAKING**:
</details>
---
### Configuration
📅 **Schedule**: Branch creation - "before 4am on Monday" (UTC),
Automerge - At any time (no schedule defined).
🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.
♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.
🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.
---
- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box
---
This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/astral-sh/uv).
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---------
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: konstin <konstin@mailbox.org>
Previously if you wanted to run e.g. PyPy via `uvx`, you had to spell it
like `uvx -p pypy python`. Now we reuse some of the
`PythonRequest::parse` machinery to handle the executable, so all of the
following examples work:
- `uvx python3.8`
- `uvx 'python>3.7,<3.9'`
- `uvx --from python3.8 python` (or e.g. `bash`)
- `uvx pypy38`
- `uvx graalpy@38`
The `python` (and on Windows only, `pythonw`) special cases are
retained, which normally aren't allowed values of `-p`/`--python`.
Closes https://github.com/astral-sh/uv/issues/13536.
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
Co-authored-by: konsti <konstin@mailbox.org>
Replacement for https://github.com/astral-sh/uv/pull/13474 (clobbered by
a changed base)
Once these are explicitly installed, they should be discoverable and
usable. Currently, they are not.
In https://github.com/astral-sh/uv/pull/13721#issuecomment-2920530601 I
presumed that all the installation problems in
https://github.com/astral-sh/uv/pull/13722 were solved by
https://github.com/astral-sh/uv/pull/13709 but they were not because we
don't differentiate between implicit and explicit architecture requests
so a request for `aarch64` is considered satisfied by an existing
`x86-64` installation even if the user explicitly requested that
architecture.
Now, we track if it was explicit or implicit, requiring an exact match
in the former case, and a `supports` in the latter.
We considered doing this for other items in the request, like the
operating system but we don't have a `supports()` concept there. It
might make sense for libc in the future.
Resolves
https://github.com/astral-sh/uv/pull/13474#discussion_r2112586405
This kind of dynamic ordering freaks me out a little, but I think it's
probably the best solution and is static at compile-time.
Currently, we're just sorting by the stringified representation! which
is just convenient for reproducibility, but we rely on these orderings
for prioritization in discovery.
Previously you could get a confusing error message like this:
```
$ docker run ghcr.io/astral-sh/uv run python
error: Could not read ELF interpreter from any of the following paths: /bin/sh, /usr/bin/env, /bin/dash, /bin/ls
```
Now the error message is better:
```
error: Failed to discover managed Python installations
Caused by: Failed to determine the libc used on the current platform
Caused by: Failed to find any common binaries to determine libc from: /bin/sh, /usr/bin/env, /bin/dash, /bin/ls
```
See https://github.com/astral-sh/uv/issues/8635.
---------
Co-authored-by: konsti <konstin@mailbox.org>
Co-authored-by: Zanie Blue <contact@zanie.dev>
Currently, it is not possible to set a custom Python downloads JSON on
Windows, as Windows paths can be valid URLs.
```rust
use url::Url;
fn main() {
dbg!(Url::parse(r"C:\Users\Ferris\download.json"));
}
```
Tested by https://github.com/astral-sh/uv/pull/13585 (where it is
currently failing CI).
## Summary
This PR makes a few performance improvements:
1. Reduces the need to unpack and repack a `_GLibCVersion` tuple
2. Reduces the doubled call to `_is_compatible(arch, glibc_version)`
3. Moves the assignment of the `tag` variable directly into the yield,
reducing memory allocation in case this is never used when
`_is_compatible(arch, glibc_version)` is false
4. Combines the check of the `glibc_version` being in
`_LEGACY_MANYLINUX_MAP` and the assignment to the variable together. I'm
not sure if this is actually better, but using the assignment expression
reduces this from 4 lines to 2
## Test Plan
I upstreamed these changes in
https://github.com/pypa/packaging/pull/869. Otherwise, I'm pretty
confident this is a minor change that works the same
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
This change allows for `uv python install --reinstall` to include
pre-releases when reinstalling. It does this by explicitly allowing
pre-releases to be included within `PythonRequest::Any` if the user does
not specify a version to reinstall.
Fixes#13582
## Test Plan
<!-- How was it tested? -->
```bash
uv python install 3.14 3.13 3.10
uv python install --no-config --reinstall
```
Prior to this PR, there were numerous places where uv would leak
credentials in logs. We had a way to mask credentials by calling methods
or a recently-added `redact_url` function, but this was not secure by
default. There were a number of other types (like `GitUrl`) that would
leak credentials on display.
This PR adds a `DisplaySafeUrl` newtype to prevent leaking credentials
when logging by default. It takes a maximalist approach, replacing the
use of `Url` almost everywhere. This includes when first parsing config
files, when storing URLs in types like `GitUrl`, and also when storing
URLs in types that in practice will never contain credentials (like
`DirectorySourceUrl`). The idea is to make it easy for developers to do
the right thing and for the compiler to support this (and to minimize
ever having to manually convert back and forth). Displaying credentials
now requires an active step. Note that despite this maximalist approach,
the use of the newtype should be zero cost.
One conspicuous place this PR does not use `DisplaySafeUrl` is in the
`uv-auth` crate. That would require new clones since there are calls to
`request.url()` that return a `&Url`. One option would have been to make
`DisplaySafeUrl` wrap a `Cow`, but this would lead to lifetime
annotations all over the codebase. I've created a separate PR based on
this one (#13576) that updates `uv-auth` to use `DisplaySafeUrl` with
one new clone. We can discuss the tradeoffs there.
Most of this PR just replaces `Url` with `DisplaySafeUrl`. The core is
`uv_redacted/lib.rs`, where the newtype is implemented. To make it
easier to review the rest, here are some points of note:
* `DisplaySafeUrl` has a `Display` implementation that masks
credentials. Currently, it will still display the username when there is
both a username and password. If we think is the wrong choice, it can
now be changed in one place.
* `DisplaySafeUrl` has a `remove_credentials()` method and also a
`.to_string_with_credentials()` method. This allows us to use it in a
variety of scenarios.
* `IndexUrl::redacted()` was renamed to
`IndexUrl::removed_credentials()` to make it clearer that we are not
masking.
* We convert from a `DisplaySafeUrl` to a `Url` when calling `reqwest`
methods like `.get()` and `.head()`.
* We convert from a `DisplaySafeUrl` to a `Url` when creating a
`uv_auth::Index`. That is because, as mentioned above, I will be
updating the `uv_auth` crate to use this newtype in a separate PR.
* A number of tests (e.g., in `pip_install.rs`) that formerly used
filters to mask tokens in the test output no longer need those filters
since tokens in URLs are now masked automatically.
* The one place we are still knowingly writing credentials to
`pyproject.toml` is when a URL with credentials is passed to `uv add`
with `--raw`. Since displaying credentials is no longer automatic, I
have added a `to_string_with_credentials()` method to the `Pep508Url`
trait. This is used when `--raw` is passed. Adding it to that trait is a
bit weird, but it's the simplest way to achieve the goal. I'm open to
suggestions on how to improve this, but note that because of the way
we're using generic bounds, it's not as simple as just creating a
separate trait for that method.
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
