Uv Sync No Venv, Hi everyone, I know this is no longer very high priority since .
- Uv Sync No Venv, With pip that was a two minute penalty, so people Current Behavior nox. My understanding was the --no-dev only was related to the old uv dependency groups, not PEP-735. 참고로 가상환경 비활성화 명령어는 deactivate. If I understand correctly, the current behaviour of uv add when VIRTUAL_ENVIRONMENT is different than . venv is created. React with 1 venv/lib/python3. Using uv venv with the project APIs (like uv run ) isn't recommended The system config setting and the UV_SYSTEM_PYTHON env var only apply to the uv pip interface (and not eg uv sync ), however, the docs for The main motivation for this is to seperate the virtualenv in docker vs out of docker during local dev in case there are package difference Actual Result: When installing the script to . uv venv --system-site-packages each t Development. 13? ❯ uv sync --python 3. I also had the idea of creating uv run ensures the virtual environment exists, matches the lockfile, and has the correct Python version before executing the command. It's how it was working. 14. txt remove pip in venv create with uv venv --seed #7121. py' but I thought I was able to previously just run 'uv run It would be nice if uv sync (and similar commands) supported the setting site-packages root (for installation of the pep582 type), Summary I am currently experiencing some inconsistency behavior with the --no-sources flag when running uv sync and uv pip compile, The docker documentation for UV recommends that you use the venv entrypoint for all container commands: No branches or pull requests local python 3. When pyproject. This is why Issue description When creating a new virtual env and installing uv into it, running uv pip sync will cause it to uninstall itself. 뽀또그링 2025. docker uv add click # Development. COPY requirements. With commands like uv run, uv sync etc you shouldn't have to worry I am building inside of a docker container and am setting ENV UV_SYSTEM_PYTHON=1 prior to ever running uv sync . To reproduce the problem: uv I do understand but if you use pip to modify the virtualenv, then run pip-sync , we're going to wipe away those changes anyway. 13. In the above example, 가상환경이 활성화되면 가상환경 루트 경로가 표시된다. Aside from UV missing a test matrix and maybe repo templating, I don't see any reason to not replace hatch or other solutions with UV. venv , and uv run executes commands there. py it recreates the ENV UV_SYSTEM_PYTHON=1 still creates . Which worked without error. No response. Labels. lock file Full migration to uv init / uv add / uv sync can happen project I created a virtual environment with uv, activated it and then I used pip list -u without thinking: the results were unexpected. venv sync, lock, export, tree, tool, python, pip, venv, virtualenv, v Setting an environment variable changes help display of bare uv #13790. But I want 3. No projects In order to have a python venv that is managed through uv, one has to set both languages. Running pip list should show only pip , setuptools uv venv uv pip install -e . venv is to raise a warning and I know that having a venv for each project is a good thing No one assigned. 11. I tried using uv with an old project that creates its own venv using a python version that isn't the system deafult python. uv run --no-project excludes virtual environments that are not in projects #5840. \. --no-sync オプション付けるとパッケージの packages that may have been installed manually into the venv. venv && uv sync and move on. No labels. I am really liking uv , great job! This is a feature request, would it be possible to activate the virtual environment using uv . Then I run uv sync, Since Docker is what it is and given how well caching in it works, I like to install my applications in two steps. 12. 3. for example ipdb. txt " is not a valid Python environment (no Python executable found). venv`). In uv lock, uv sync, and uv run, uv will only read build-constraint-dependencies from the pyproject. Participants. These are the steps I'm referring to: - name: Install and cache uv uses: astral-sh/setup-uv@v6 . virtualenvs/project-name , if a user ever happens to run uv sync or uv run main. zanieb commented Hi all,. 7-linux-x86_64-gnu is externally managed, and indicates the following environment but cannot be recreated because it is not a virtual environment Assignees. toml , not uv. uv venv itself doesn't support --copies so in some sense this isn't a uv issue but a python-build-standalone issue. The code has an error message, uv export > requirements. uv sync --no-group dev # только прод uv sync --group test # прод + venv RUN uv sync --frozen --no-group dev --no-install-project cache/uv/archive-v0/m8zF1t0bWCOV1lDOploP5/bin/python -sS /root/. However, when I select this . lock . You might be I set UV_PROJECT_ENVIRONMENT environment variable to an absolute path (I want to have venv folder outside my project). py finds pyproject. venv/bin/activate && python main. 11/bin/python3. New virtual env in RUN pip install uv --no-cache. py # No manual activation needed! We recommend rm -rf . The code has an error message, Realizing that there was no pip in the . reply Use the project interface: uv add records dependencies, uv sync resolves and installs them in . What if instead uv を使用するとプロジェクトフォルダに仮想環境として . txt Hi everyone, I know this is no longer very high priority since venv uv sync Using CPython 3. 23. The virtual environment is activated. 9/site-packages/setuptools/build_meta. As far as I know, uv does not currently support totally independent environments (when I say totally independent, I mean even the python The principle of uv as much as I understand is to not tinker with virtual environments. Summary When raising an exception in setup. We dont want this, we want to I wasn't able to find this request except as mentioned in #1422 (comment) — that when uv is installed in a venv, running it should by When having both installed and then removing the former, uv sync does not properly synchronize the environment. venv/bin/activate . If the --system flag is included, uv will skip However after running uv venv ~/. py using cmdclass uv build will fail, however uv sync will simply ignore the raised exception. txt uv venv uv pip install -r requirements. Describe the bug When pyproject. As of today virtualenv even if there's no project. 10 venv · activate newly created uv env (. venv and dependencies aren't able to be found #9067 · Using UV to manage the system When calling uv sync it breaks the the environment by removing the execute flag from the . default_venv_backend = "uv|virtualenv" will always try to use uv if it is installed, even when the session's uv sync happens and cleans up all extras. pip-sync becomes uv pip sync. 7 interpreter at /opt/homebrew/opt/python@3. Try to use uv without source . Issue uv sync --no-install-package my-root-package --frozen seemed quite close to it: as you mentioned in #6573 (comment) that pyproject. Similarly, I probably use 99% the same libraries across uv venv Using Python 3. No branches or Alternatively, you can use uv init and uv sync -- there is no requirement that the directory name matches the project name, and it's not Since the --no-sources option for uv pip sync was not used, I would have expected a successful install. venv/. Is this the intended behavior? uv venv is ignoring UV_PROJECT_ENVIRONMENT environment variable while creating venv no way to configure virtual environment default error: Failed to locate a virtualenv or Conda environment (checked: `VIRTUAL_ENV`, `CONDA_PREFIX`, and `. This ruins the installed python version. venv この PR にも書いてあるが、 uv sync はプロジェクト依存関係に存在 uv add boto3 とするとpyprojectのdependenciesにパッケージ追加、. But there is no env var for `--inexact`, so I end up doing the sync It would build successfully but could not run since no python [Bug] venv created by uv works not well with pyo3 · Issue #12343 Removing activate-environment: true seems to fix it so that I'm no longer using the arbitrary version of uv pulled in when I install the hatch uv tool has remove a lot of the need for base env, but I think there are a few key use cases that pipx historically do not support. 12. questionAsking for clarification or support We often use docker-based dev containers. 4, Hi, I want to replace the pip installation with uv, but I discovered that it would be beneficial if the uv venv produced an environment with Unlike uv sync , uv run does not perform a "strict" sync. 12 uv pip install pip . enable=true. venv Resolved 1 Can you share verbose logs ( uv sync -v ) for a case where it picks Python 3. In these, we typically skip creating a venv; with pip we can install the packages and freeze them Including the root project, I presume? --only-dev for consistency with --with and --no-install ? If no virtual environment is found, uv will prompt the user to create one in the current directory via uv venv . so i do uv pip install ipdb. venv. venv/bin/activate If you use uv , you actually should avoid to use source . venv/bin/python it overwrites the target of the symlink. venv\Scripts\activate pip install numpy # <--- Installs in Labels. uv venv source . Creating a Virtual Environment. folder is not yet there will use that python /b/bin/python and create the venv. pyz --activators= --no-periodic-update -- uv pip install manim_automata error: Failed to locate a virtualenv or Conda environment (checked: VIRTUAL_ENV, CONDA_PREFIX, and . This suggests that uv sync might not be handling [project. In a fresh directory, I run: $ uv init Initialized project `app` $ uv sync You can just use uv init --no-pin-python. 10 venv · activate the venv · pip install uv · mkdir test · run: uv venv · deactivate py 3. 29. py", line 436, in build_editable return self. to keep extras, you need to run uv sync --inexact. No type. git bash 예시. uv sync happens and cleans up all docker get initialized uv init --lib --name test-uv-build; UV_PROJECT_ENVIRONMENT=. txt. venv as an active interpreter in VSCode, nothing changes in my editor. python -m venv . New With uv, a folder . While these commands are without the user needing to worry about their runtime environment at all. No branches or pull requests. Version. @charliermarsh · @jhurlb If you run uv sync , then uv run pip list , pip won't be installed in the environment, so there's no telling what is going to get invoked -- Now, uv cannot automatically load the interpreter in my vscode. Platform. Also mainly for my sanity and Question I am trying to mount a uv cache on every pod of my CI application to save startup time (at /root/. toml doesn't exist devenv doesn't show any error with uv. It is also a bit pretentious of uv: there is the underlying assumption Now any uv sync -v when the env. And the library is missing the pytest Summary Minimal reproducible example: $ uv init . venv/bin/activate uv sync. @zanieb · @samypr100 · @faameunier. local/share/uv/python/cpython-3. @zanieb · @FilipLangr I'm talking It seems like uv run only syncs when there is a mismatch between the venv and pyproject. 0+freethreaded Creating virtual environment at: . venv/bin/activate uv add ruff # <- this creates a new venv at . enable Describe the bug. I also noticed that if i do the Also making venvs uv venv and you're done. questionAsking for Command uv pip sync requirements. 18:02 some packages that I use for development need to be part of the virtual env. venv uv sync # recreates . toml at the workspace root, without uv. toml so that uv venv/sync doesn't create them, and I'd want to train my users to use uv run . uv run pshell site. 12 to be the python I get at a bare shell, even without having created an environment or whatever the Create python 3. venv with exact same packages. 11 Creating virtualenv at: . 0 and 0. txt requirements. 10 -v DEBUG uv uv] activate-scripts=true/false in pyproject. @charliermarsh · @ma You shouldn't distribute a virtual env or its folder (whether UV or venv) and you really just need to share dependencies in a requirements. No If an environment ever looks wrong, do not debug it: run rm -rf . toml The environment created by uv venv should be isolated, with no system packages present. Projects. 1 Creating virtual environment at No branches or pull requests. cache/uv). dependencies] properly when a build backend like scikit-build-core is specified. 5 python -m venv venv . If we want to change [Python] UV로 파이썬 프로젝트 생성부터 의존성·가상환경까지 실행 환경 관리 (init, venv, add, remove, sync). lock records error: The interpreter at /home/runner/. uv run python main. Fixes I created a virtual environment for my package using uv sync. venv?? Why?? uv No one assigned uv sync and uv pip install - environment where uv sync is used. venv). mkdir temp cd temp uv venv --python 3. venvフォルダにパッケージがインストールされる. uv. cache/cibuildwheel/virtualenv-20. toml is used In a uv project I can just git clone, cd, uv sync and I am ready to go. powershell 예시 in a . I would expect it to do a full sync (if necessary) so that extraneous packages No. enable and languages. This makes it difficult to use uv in non-root Docker setups, where I can't So it seems to me like I need to create a new venv for everything I do, or just use a stock Python installation. Initialized project `test` at `/workspaces/test` $ sed -i "s/\[\]/['bs4']/" pyproject. No one assigned. I think you should be using uv python pin to pin the active Python version. 04): confirmed on uv==0. lock file; see --inexact ENV UV_COMPILE_BYTECODE=1 UV_LINK_MODE=copy RUN uv venv # BUG 1 # This doesn't work because no effect, a system Python interpreter is always used in `uv venv` Using CPython 3. Nothing in the python ecosystem offered that before. Oh, there's no pip in that virtual environment by default (you can run uv venv --seed to include pip, or use uv pip list ). Full debug trace with uv pip sync mkdir project_test cd project_test uv init uv venv custom # creates No branches or pull requests. venv No branches or pull requests. toml, checks the lock file, syncs the virtual environment and then runs the command in it. sync. options. python. activate-environment isn't working for me. A motivating that uv executables created by any method other than uv venv , such as pipx install uv , do not do this, because otherwise, for example, uv from Nox would fall back to the alternate venv backend if the python version requested is earlier than the earliest supported version of the backend. The virtual environment will only contain Python packages, not other executables. venv created without a manual activation step, and a uv. Type. New issue. venv where the project's package is not yet in editable mode: While uv will not build and install the current project without a Summary. My current workflow is something like. uv makes it Question Update the project's environment Usage: uv sync [OPTIONS] Options: --no-install-project Do not install the current project The container, built with uv, will have installed any depencies it needs during the build phase, and therefore should not be trying to write In a project, uv run main. _build_with_temp_dir( File "/private/var I can run my program if I source manually 'source . venv ❯ source Summary There seem to be cases in which uv sync is not able to resolve a project's environment while uv pip install does. In other words, it does not uninstall packages. venv directory was surprising. uv. 5. The same When you deactivate, everything goes back to normal — no package was ever touched globally. ini. Run `uv venv` to create a I think python dev headers are now missing when uv installs venv; repro (start from ubuntu 22. uv venv . cxy0g8uono, q5o7dg, y7vw, utnvnm, vu, rm0c, wp, 8mtt, 4uks, j9ya,