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Sacred Marriage of Pipfile, Pip, & Virtualenv.

Project description

Pipenv is an experimental project that aims to bring the best of all packaging worlds to the Python world. It harnesses Pipfile, pip, and virtualenv into one single toolchain.

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).

Features

  • 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.
  • 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 init, which initializes the environment, install and uninstall, and lock, which generates a Pipfile.lock. These are intended to replace $ pip install usage.

  • py will run the Python interpreter from the virtualenv, with any arguments forwarded.
  • purge will uninstall all packages from the virtualenv.
  • where will give location information about the current project.
  • venv will give virtutalenv activation information.
  • check asserts that PEP 508 requirements are being met by the current environment.

Usage

$ pipenv
Usage: pipenv [OPTIONS] COMMAND [ARGS]...

Options:
  --version  Show the version and exit.
  --help     Show this message and exit.

Commands:
  check
  lock
  init
  install
  purge
  py
  uninstall
  venv
  where

$ pipenv where
Pipfile found at /Users/kennethreitz/repos/project/Pipfile. Considering this to be the project home.

$ pipenv where --venv
Virtualenv location: /Users/kennethreitz/repos/project/.venv

$ pipenv venv --bare
source /Users/kennethreitz/repos/project/.venv/bin/activate

$ pipenv init
Creating a Pipfile for this project...
Pipfile found at /Users/kennethreitz/repos/project/Pipfile. Considering this to be the project home.
Creating a virtualenv for this project...
...
Virtualenv location: /Users/kennethreitz/repos/project/.venv
Pipfile.freeze not found, creating...
...

To activate this project's virtualenv, run the following:
$ source /Users/kennethreitz/repos/project/.venv/bin/activate


$ python pipenv.py install requests --dev
Installing requests...
...
Adding requests to Pipfile...


$ pipenv lock
Assuring all dependencies from Pipfile are installed...
Freezing development dependencies...
Freezing default dependencies...
Note: your project now has only default packages installed.
To install dev-packages, run: $ pipenv init --dev

Installation

$ pip install pipenv

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