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Contents
  1. 1. virtualenv
  2. 2. virtualenvwrapper

Work in python virtual environment.

virtualenv

  • install virtualenv

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    $ pip3 install virtualenv

  • create virtualenv

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    $ virtualenv env1
    $ ls env1 
    bin  include  lib

  • enter the env1

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    $ source env1/bin/activate
    (env1) $

  • do anything in the virtual env

    • install demo, which will be installed in env1/lib/python3.6/site-packages/demo

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      $ pip3 install demo

    • get the installed packages

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      $ pip freeze > requirements.txt
      $ cat requirements.txt
      pbr==5.4.3
      six==1.12.0
      stevedore==1.31.0
      virtualenv==16.7.7
      virtualenv-clone==0.5.3
      virtualenvwrapper==4.8.4
      zjunweidemo==0.0.1

  • exit the env1

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    (env1) $ deactivate
    $

virtualenvwrapper

  • install virtualenvwrapper

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    $ sudo apt install virtualenvwrapper

  • enable virtualenvwrapper

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    $ source /usr/share/virtualenvwrapper/virtualenvwrapper.sh

  • create virtual env

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    $ mkvirtualenv env2

  • enter virtual env

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    $ workon env2

  • exit virtualenvwrapper

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    deactivate
Contents
  1. 1. virtualenv
  2. 2. virtualenvwrapper