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| Virtual environments are isolated Python environments. They allow freedom to install specific versions of dependencies without affecting the global site-packages. They also make it easy to throw away a 'broken' environment and start again. If you need further information regarding virtual environments, please see the [http://www.doughellmann.com/docs/virtualenvwrapper/index.html virtualenvwrapper documentation]. | | Virtual environments are isolated Python environments. They allow freedom to install specific versions of dependencies without affecting the global site-packages. They also make it easy to throw away a broken environment and start again. We recommend using '''virtualenvwrapper''' for managing your virtual environments. See the documentation for a guide to [http://virtualenvwrapper.readthedocs.org/en/latest/install.html installation] and the [http://virtualenvwrapper.readthedocs.org/en/latest/command_ref.html command reference]. There's also a useful introduction to virtualenv and virtualenvwrapper in [http://www.silverwareconsulting.com/index.cfm/2012/7/24/Getting-Started-with-virtualenv-and-virtualenvwrapper-in-Python this blog post]. |
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| == Install virtualenvwrapper ==
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| <ol>
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| <li>Install virtualenvwrapper:</li>
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| sudo pip install virtualenvwrapper
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| <li>Add the following to your ~/.bash_profile:</li>
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| export WORKON_HOME=$HOME/.virtualenvs
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| source /usr/local/bin/virtualenvwrapper.sh
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| </ol>
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| == Create a virtual environment for WebQA ==
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| mkvirtualenv webqa
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| == Switch to the WebQA virtual environment ==
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| workon webqa
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| == Installation on Windows ==
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| <i>Exception: use 32-bit version of the setuptools even if your operating system is 64-bit otherwise it fails to find the Python installation.</i>
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| === PIP Installation ===
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| <ol>
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| <li>Install the 32-bit version of SetupTools using the provided .exe installer:</li>
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| http://pypi.python.org/pypi/setuptools#files
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| <li>Add the Scripts directory to your System Variables path:</li>
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| C:\Python26\Scripts
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| <li>Download the last pip version and uncompress it:</li>
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| http://pypi.python.org/pypi/pip#downloads
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| <li>In your cmd prompt, go to the uncompressed pip directory and run:</li>
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| python setup.py install
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| <li>Now you can install packages using pip on Win.</li>:
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| pip install <<i>package name</i>>
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| </ol>
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| === Virtualenvwrapper Installation and Usage ===
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| <ol>
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| <li>From the cmd prompt install pip:</li>
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| pip install virtualenvwrapper-win
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| <li>Set your environment variable:</li>
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| WORKON_HOME = C:\Python27\Scripts:
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| <li>You can now create virtualenvs:</li>
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| mkvirtualenv <<i>name of the environment</i>>
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| </ol>
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