Sacred Marriage of Pipfile, Pip, & Virtualenv.
Project description
Pipenv: Sacred Marriage of Pipfile, Pip, & Virtualenv
=====================================================
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---------------
**Pipenv** is an experimental project that aims to bring the best of all packaging worlds to the Python world. It harnesses `Pipfile <https://github.com/pypa/pipfile>`_, pip, and virtualenv into one single toolchain. It features very pretty terminal colors.
It automatically creates and manages a virtualenv for your projects, as well as adds/removes packages from your ``Pipfile`` as you install/uninstall packages. The ``lock`` command generates a lockfile (``Pipfile.lock``).
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☤ Features
----------
- Automatically finds your project home, recursively, by looking for a ``Pipfile``.
- Automatically generates a ``Pipfile``, if one doesn't exist.
- Automatically generates a ``Pipfile.lock``, if one doesn't exist.
- Automatically creates a virtualenv in a standard location (``project/.venv``).
- Automatically adds packages to a Pipfile when they are installed.
- Automatically removes packages from a Pipfile when they are un-installed.
- Also automatically updates pip.
The main commands are ``install``, ``uninstall``, and ``lock``, which generates a ``Pipfile.lock``. These are intended to replace ``$ pip install`` usage, as well as manual virtualenv management.
Basic Concepts
//////////////
- A virtualenv will automatically be created, when one doesn't exist.
- When no parameters are passed to ``install``, all packages specified will be installed.
- When no parameters are passed to ``uninstall``, all packages will be uninstalled.
- To initialize a Python 3 virtual environment, run ``$ pipenv --three``.
- To initialize a Python 2 virtual environment, run ``$ pipenv --two``.
- Otherwise, whatever virtualenv defaults to will be the default.
Other Commands
//////////////
- ``shell`` will spawn a shell with the virtualenv activated.
- ``run`` will run a given command from the virtualenv, with any arguments forwarded (e.g. ``$ pipenv run python``).
- ``check`` asserts that PEP 508 requirements are being met by the current environment.
Caveats
///////
- Windows is not currently supported.
- Proper casing should be used (e.g. ``Flask`` & ``Django).
- Hashes are generated in lockfiles but not (yet) used for installation.
☤ Usage
-------
::
$ pipenv
Usage: pipenv [OPTIONS] COMMAND [ARGS]...
Options:
--where Output project home information.
--bare Minimal output.
--three / --two Use Python 3/2 when creating virtualenv.
--version Show the version and exit.
--help Show this message and exit.
Commands:
check Checks PEP 508 markers provided in Pipfile.
install Installs a provided package and adds it to...
lock Generates Pipfile.lock.
run Spawns a command installed into the...
shell Spawns a shell within the virtualenv.
uninstall Un-installs a provided package and removes it...
update Updates pip to latest version, uninstalls all...
::
$ pipenv --where
Pipfile found at /Users/kennethreitz/repos/kr/pip2/test/Pipfile. Considering this to be the project home.
::
$ pipenv install
Creating a virtualenv for this project...
...
No package provided, installing all dependencies.
Virtualenv location: /Users/kennethreitz/repos/kr/pip2/test/.venv
Installing dependencies from Pipfile.lock...
...
To activate this project's virtualenv, run the following:
$ pipenv shell
::
$ pipenv install pytest --dev
Installing pytest...
...
Adding pytest to Pipfile's [dev-packages]...
::
$ pipenv lock
Assuring all dependencies from Pipfile are installed...
Locking [dev-packages] dependencies...
Locking [packages] dependencies...
Note: your project now has only default [packages] installed.
To install [dev-packages], run: $ pipenv init --dev
::
$ pipenv install --dev
Pipfile found at /Users/kennethreitz/repos/kr/pip2/test/Pipfile. Considering this to be the project home.
Pipfile.lock out of date, updating...
Assuring all dependencies from Pipfile are installed...
Locking [dev-packages] dependencies...
Locking [packages] dependencies...
Note: your project now has only default [packages] installed.
To install [dev-packages], run: $ pipenv install --dev
Installing dependencies from Pipfile.lock...
...
::
$ pipenv uninstall
No package provided, un-installing all dependencies.
Found 25 installed package(s), purging...
...
Environment now purged and fresh!
::
$ pipenv shell
Spawning virtualenv shell (/bin/zsh).
(test)$
☤ Installation
--------------
::
$ pip install pipenv
✨🍰✨
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