An experimental Python packaging tool.
Puffin is an extremely fast (experimental) Python package resolver and installer, intended to
replace pip
and pip-tools
(pip-compile
and pip-sync
).
Puffin itself is not a complete "package manager", but rather a tool for locking dependencies
(similar to pip-compile
) and installing them (similar to pip-sync
). Puffin can be used to
generate a set of locked dependencies from a requirements.txt
file, and then install those
locked dependencies into a virtual environment.
Puffin represents an intermediary goal in our pursuit of building a "Cargo for Python": a Python
package manager that is extremely fast, reliable, and easy to use -- capable of replacing not only
pip
, but also pipx
, pip-tools
, virtualenv
, tox
, setuptools
, and even pyenv
, by way of
managing the Python installation itself.
Puffin's limited scope allows us to solve many of the low-level problems that are required to
build such a package manager (like package installation) while shipping an immediately useful tool
with a minimal barrier to adoption. Try it today in lieu of pip
and pip-tools
.
- Extremely fast dependency resolution and installation: install dependencies in sub-second time.
- Disk-space efficient: Puffin uses a global cache to deduplicate dependencies, and uses Copy-on-Write on supported filesystems to reduce disk usage.
Puffin does not yet support:
- Windows
- Editable installs (
pip install -e ...
) - Package-less requirements (
pip install https://...
) --find-links
- ...
Like pip-compile
, Puffin generates a platform-specific requirements.txt
file (unlike, e.g.,
poetry
, which generates a platform-agnostic poetry.lock
file). As such, Puffin's
requirements.txt
files are not portable across platforms and Python versions.
To resolve a requirements.in
file:
cargo run -p puffin-cli -- pip-compile requirements.in
To install from a resolved requirements.txt
file:
cargo run -p puffin-cli -- pip-sync requirements.txt
For more, see cargo run -p puffin-cli -- --help
:
Usage: puffin [OPTIONS] <COMMAND>
Commands:
pip-compile Compile a `requirements.in` file to a `requirements.txt` file
pip-sync Sync dependencies from a `requirements.txt` file
pip-uninstall Uninstall packages from the current environment
clean Clear the cache
freeze Enumerate the installed packages in the current environment
venv Create a virtual environment
add Add a dependency to the workspace
remove Remove a dependency from the workspace
help Print this message or the help of the given subcommand(s)
Options:
-q, --quiet Do not print any output
-v, --verbose Use verbose output
-n, --no-cache Avoid reading from or writing to the cache
--cache-dir <CACHE_DIR> Path to the cache directory [env: PUFFIN_CACHE_DIR=]
-h, --help Print help
-V, --version Print version
Puffin is licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Puffin by you, as defined in the Apache-2.0 license, shall be dually licensed as above, without any additional terms or conditions.