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docs: recommend python3 and virtualenv (#901)
* docs: make it clear that python3 is the recommended version * docs: recommend installing inside a virtualenv And add a virtualenv primer.
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@ -4,8 +4,8 @@ Installation & Configuration
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Getting Started
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Getting Started
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---------------
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Caravel is currently only tested using Python 2.7.*. Python 3 support is
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Caravel is tested using Python 2.7 and Python 3.4+. Python 3 is the recommended version,
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on the roadmap, Python 2.6 won't be supported.
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Python 2.6 won't be supported.
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OS dependencies
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OS dependencies
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@ -48,6 +48,26 @@ attempt it, download `get-pip.py <https://bootstrap.pypa.io/get-pip.py>`_, and r
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# You may also have to create C:\Temp
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# You may also have to create C:\Temp
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C:\> md C:\Temp
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C:\> md C:\Temp
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Python virtualenv
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-----------------
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It is recommended to install Caravel inside a virtualenv. Python 3 already ships virtualenv, for
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Python 2 you need to install it. If it's packaged for your operating systems install it from there
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otherwise you can install from pip: ::
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pip install virtualenv
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You can create and activate a virtualenv by: ::
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# virtualenv is shipped in Python 3 as pyvenv
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virtualenv venv
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. ./venv/bin/activate
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On windows the syntax for activating it is a bit different: ::
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venv\Scripts\activate
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Once you activated your virtualenv everything you are doing is confined inside the virtualenv.
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To exit a virtualenv just type ``deactivate``.
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Caravel installation and initialization
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Caravel installation and initialization
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---------------------------------------
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---------------------------------------
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