87 lines
2.5 KiB
Markdown
87 lines
2.5 KiB
Markdown
+++
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title = "Using pyenv for Python projects"
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date = "2015-04-13T09:06:03-05:00"
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draft = false
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toc = true
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description = "Using pyenv to manage your virtual environments makes working on multiple projects, each using a different version of python a breeze."
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keywords = ["python", "pyenv", "centos", "macos"]
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tags = ["python", "pyenv", "centos", "macos"]
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categories = ["development"]
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Using [pyenv][3] to manage your virtual environments makes working on multiple projects, each using a different version of python a breeze.
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I do all my development on an Apple Macbook running Yosemite and my production environment is a VPS from [Linode][1] running [CentOS 7][2].
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Here some simple notes on how I setup and use [pyenv][3] :
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## Installing on Mac OS X ##
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**Install using [homebrew][5]**
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```
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$ brew install pyenv pyenv-virtualenv
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```
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**Update your shell profile (.bashrc or .zshrc) adding the following to it (and restart your terminal)**
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```
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if which pyenv > /dev/null; then eval "$(pyenv init -)"; fi
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if which pyenv-virtualenv-init > /dev/null; then eval "$(pyenv virtualenv-init -)"; fi
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```
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## Installing on Linux CentOS 7 ##
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**Checkout from github**
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```
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$ git clone https://github.com/yyuu/pyenv.git ~/.pyenv
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$ git clone https://github.com/yyuu/pyenv-virtualenv.git ~/.pyenv/plugins/pyenv-virtualenv
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```
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**Update your shell profile (.bashrc or .zshrc) adding the following to it (and restart your terminal)**
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```
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$ echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
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$ echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
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$ echo 'eval "$(pyenv init -)"' >> ~/.bash_profile
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$ echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bash_profile
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```
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## Using pyenv ##
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**To install a new version of [Python][6]**
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```
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$ pyenv install <version>
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$ pyenv rehash
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```
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**To get a list of [Python][6] versions available**
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```
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$ pyenv install -l
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```
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**To create a new virtual environment**
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```
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$ pyenv virtualenv [pyenv-version] [virtualenv-name]
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```
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**To use your new virtual environment within your project**
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1. Change to your projects root directory
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1. Run:
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```
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$ pyenv local [virtualenv-name]
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```
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Note that this is done only the first time you go to your project directory. The wonderful thing about [pyenv][3] is in future when you change directory to your project directory, it will be automatically activated your virtualenv for you.
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[1]: https://www.linode.com
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[2]: https://www.centos.org
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[3]: https://github.com/yyuu/pyenv
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[4]: https://github.com/yyuu/pyenv-virtualenv
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[5]: http://brew.sh
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[6]: https://www.python.org
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