viv isn't venv
Project description
Try before you buy!
python3 <(curl -fsSL viv.dayl.in/viv.py) run frogmouth -- gh daylinmorgan/viv
Viv
is a standalone dependency-free venv
creator (just needs python + pip).
Viv
helps you ignore silly things like managing temporary or rarely used virtual environments,
while still unleashing the full power of python scripting with it's entire ecosystem at your disposal.
Viv
's uncompromising insistence on portability means that it will always,
only use the standard library and never exceed a single script.
See the documentation or the examples to get started.
Setup
Run the below command to install viv
.
python3 <(curl -fsSL viv.dayl.in/viv.py) manage install
To access viv
from within scripts you should add its location to your PYTHONPATH
.
By default viv
will be installed to $XDG_DATA_HOME/viv
or ~/.local/share/viv
;
you can customize this with --src
.
export PYTHONPATH="$PYTHONPATH:$HOME/.local/share/viv"
Pypi (Not Recommended)
pip install viv
Why is this not recommended? Mainly because viv
is all about hacking your sys.path
.
Placing it in its own virtual environment or installing in a user site directory may complicate this endeavor.
Usage
In any Python script with external dependencies you can add this line
to automate vivenv
creation and installation of dependencies.
As a cli:
viv run frogmouth -- gh daylinmorgan/viv
As a python module:
__import__("viv").use("click")
As an app installer:
viv shim ruff
To remove all vivenvs
you can use the below command:
viv env remove $(viv list -q)
To remove viv
altogether you can use the included purge
command:
python3 <(curl -fsSL viv.dayl.in/viv.py) manage purge
Equivalent commands from alternatives
pip-run
pip-run cowsay -- -m cowsay "moove over, pip-run"
python3 <(curl -fsSL viv.dayl.in/viv.py) run cowsay -- "moove over, pip-run"
python -m pip-run requests -- -c "import requests; print(requests.get('https://pypi.org/project/pip-run').status_code)"
python -m viv run requests -b python -- -c "import requests; print(requests.get('https://pypi.org/project/viv').status_code)"
pipx
pipx install pycowsay
viv shim pycowsay
pipx run https://gist.githubusercontent.com/cs01/fa721a17a326e551ede048c5088f9e0f/raw/6bdfbb6e9c1132b1c38fdd2f195d4a24c540c324/pipx-demo.py
python3 <(curl -fsSL viv.dayl.in/viv.py) run \
-s https://gist.githubusercontent.com/cs01/fa721a17a326e551ede048c5088f9e0f/raw/6bdfbb6e9c1132b1c38fdd2f195d4a24c540c324/pipx-demo.py
Bonus: use viv
with just standalone snippet (37LOC)
--standalone
will auto-generate a mini-function version of viv
to accomplish the same basic task as using a local copy of viv
.
After generating this standalone shim you can freely use this script
across Unix machines which have Python > 3.8.
See examples/black
for output of the below command.
viv freeze
also supports --standalone
.
python3 <(curl -fsSL viv.dayl.in/viv.py) shim black -o ./black --standalone --freeze
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