- Correctly resolve Jupyter data/config dirs on Windows (#89)
- Move
juv run
Jupyter setup logic to static module (#88)
- Manually clean up temp file in
juv run
on Windows (#87)
This release is considered breaking since it sets a minimum bound on uv
dependency to v0.6.7 or later. This could potentially affect environments where
both juv
and uv
are Python dependencies, and there is an upper bound on the
uv
version (unlikely).
There are no intentional breaking changes to juv
commands.
- Add explicit
juv sync
command (#84)
- Replace
juv venv
internals withuv sync --script
(#84)
- Support stdin
--requirements
withjuv add
(#83)
- Extend
juv venv
regular python scripts as well (#82)
Allows for passing a script with inline script metadata to juv venv
.
uv init --script foo.py
uv add --script foo.py attrs
juv venv --from=foo.py
# Using CPython 3.13.0
# Creating virtual environment at: .venv
# Activate with: source .venv/bin/activate
# Using Python 3.13.0 environment at: .venv
# Resolved 1 package in 0.62ms
# Installed 1 package in 1ms
# + attrs==25.1.0
Useful for quickly creating a .venv
for a standalone script, which can be used by other tools like text editors or IDEs.
- Add
juv venv
to support exporting explicit notebook environments (#80)
Some editors and environments are missing the benefits of standalone notebooks because juv manages virtual environments transparently within juv run
. To improve compatibility with other tools (e.g., editors & IDEs), this release adds juv venv
to export a virtual environment with all a notebook's specified dependencies (and ipykernel
):
juv venv --from=Untitled.ipynb
# Using CPython 3.13.0
# Creating virtual environment at: .venv
# Activate with: source .venv/bin/activate
The resulting environment (i.e., .venv
) can be selected in an editor like VS Code to run the notebook.
To create a virtual environment with only the locked dependencies (i.e., without ipykernel
), use the --no-kernel
flag:
juv venv --from=Untitled.ipynb --no-kernel
- Add
--index
and--default-index
flags tojuv add
(#76)
This release adds support for generating lockfiles from Jupyter notebooks using inline metadata, as defined in PEP 723.
By default, notebooks remain unlocked. To lock a notebook, run juv lock /path/to/notebook.ipynb
,
which generates and embeds a lockfile in the notebook's metadata under the
"uv.lock"
key. The lockfile is respected and updated automatically when using
juv run
, uv add
, or uv remove
.
Additional commands:
juv export
: Outputs an alternative lockfile format (requirements.txt style) to stdout.uv tree
: Displays the dependency tree for a script.
Both commands work with notebooks, whether locked or unlocked.
This release is considered breaking due to the lockfile support, which
requires a minimum uv
0.5.18 and modifies execution.
- Add
--clear
flag tolock
to clear lockfile metadata (#69) - Add
export
command (#70) - Add
lock
command (#64) - Add
tree
command (#68) - Sync lockfile during
add
command (#65) - Sync lockfile during
remove
command (#66)
- Require at least one package for
add
andremove
(#73) - Support relative paths in the
run
command (#72)
This release adds juv remove
to remove packages from a notebook or script.
Dependencies are removed from the PEP-723 inline metadata. The command follows
uv's semantics. See the uv
docs for more information.
uvx juv init
uvx juv add Untitled.ipynb 'numpy>=1.0.0' 'polars' # adds 'numpy>=1.0.0' 'polars'
uvx juv remove Untitled.ipynb numpy # removes 'numpy>=1.0.0'
- Add
remove
command (#59)
- Force UTF-8 encoding when reading/writing text (#56)
- Use TemporaryDirectoryIgnoreErrors in replacement template (#57)
- Support windows with
juv run
(#54)
This release adds --pin
flag to juv add
to have package specifiers resolved to an exact version at the time of the command, and subsequently pinned in the notebook/script.
uvx juv init
uvx juv add Untitled.ipynb 'numpy>=1.0.0' 'polars' # adds 'numpy>=1' 'polars'
uvx juv add Untitled.ipynb numpy polars --pin # adds 'numpy==2.1.3' 'polars==1.13.1'
This same behavior can be achieved without juv for regular scripts with a unix pipe:
echo 'numpy\npolars' | uv pip compile --no-deps - | grep '==' | xargs uv add --script foo.py
But alternatively you can use juv add
for the same thing:
uv init --script foo.py
uvx juv add foo.py numpy polars --pin
uv
supports time-based dependency resolution via exclude-newer
,
allowing packages to be resolved as they existed at a specific moment in time.
This feature greatly enhances the reproducibility of one-off scripts and notebooks without needing a lockfile.
However, exclude-newer
requires a full RFC 3339 timestamp (e.g., 2020-03-05T00:00:00-05:00), which can be tedious to manage manually.
This release introduces juv stamp
, a command that provides a high-level,
ergonomic API for pinning and unpinning various relevant timestamps in both
standalone Python scripts and Jupyter notebooks:
# Stamp a notebook
juv init foo.ipynb
juv stamp foo.ipynb
# Stamp with a specific time
juv stamp foo.ipynb --time "2020-03-05T00:00:00-05:00"
juv stamp foo.ipynb --date 2022-01-03
# Use Git revisions
juv stamp foo.ipynb --rev e20c99
juv stamp foo.ipynb --latest
# Clear the pinned timestamp
juv stamp foo.ipynb --clear
# For Python scripts
uv init --script foo.py
uv add --script foo.py polars anywidget
uvx juv stamp foo.py
- Add
juv stamp
for time-based dependency resolution pinning (#50)
- Clear widgets metadata in
clear
(#49)
- Upgrade uv to v0.5.0 (#47)
- Add
--pager
flag forjuv cat
(#45)
- Refactor environment vars to also accept flags (#46)
- Add
--check
flag forjuv clear
(#44)
- Use managed temp dir for
JUPYTER_DATA_DIR
(#43)
- Change directories prior to running uv (#41)
This release adds some nice cli flags to juv add
for configuring various kinds of dependency sources:
Include "extra" dependency groups with --extra
:
juv add Untitled.ipynb --extra dev anywidget # adds `anywidget[dev]`
Treat a local source as editable with --editable
:
juv add Untitled.ipynb --editable ./path/to/packages
Add a git source at a specific revision (i.e., commit), tag, or branch:
juv add Untitled.ipynb git+https://github.com/encode/httpx --tag 0.27.0
juv add Untitled.ipynb git+https://github.com/encode/httpx --branch master
juv add Untitled.ipynb git+https://github.com/encode/httpx --rev 326b9431c761e1ef1e00b9f760d1f654c8db48c6
- Support
--editable
sources foradd
(#39) - Support
add --extra
(#38) - Support git sources with
add
(#40) - Add help information for command line flags (#40)
- Support forwarding flags to underlying Jupyter front end (#35)
- Replace
cat --format
withcat --script
(#33) - Include
id
metadata for markdown editing for better diffing (#34)
- Fix so that cells are diffed by longest (#32)
- Strip content for editor (#27)
- Allow specifying directories for
clear
(#22)
- Add
clear
command (#20)
- Add
--output-format
flag forversion
command (#18)
- Add new empty cell to new notebooks (#15)
- Add PyPI shield to README (#14)
- Switch to click CLI (#6)
- Add
--with
flag to init (#8) - Add
add
/init
commands (#2) - Add managed run mode via
JUV_RUN_MODE=managed
env (#9) - Make nicer CLI output text (#5)
- Use jupytext for creating notebooks (#1)
- Support Python 3.8 and test on ubuntu (#11)