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vms:python:dev [2017/03/31 20:37] admin [Virtual Environments] |
vms:python:dev [2017/04/14 00:02] admin [Virtualenvwrapper] |
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Virtual Environments are used to isolate python versions and package dependencies for each specific project. | Virtual Environments are used to isolate python versions and package dependencies for each specific project. | ||
- | As stated before, we'll install ''virtualenv'' for User only in order to allow coexistence of Python2 and Python3. As the virtualenv binary will bear the same name for 2 & 3, we'll rename them on the go: | + | We'll install ''virtualenv'' for User only in order to allow coexistence of Python2 and Python3. As the virtualenv binary will bear the same name for 2 & 3, we'll move them on the go: |
=== Virtualenv 2 === | === Virtualenv 2 === | ||
Line 73: | Line 73: | ||
ADD: | ADD: | ||
# Python virtualenv | # Python virtualenv | ||
- | alias virtualenv3="~/.local/lib/python2.7/bin/virtualenv" | + | alias virtualenv2="~/.local/lib/python2.7/bin/virtualenv" |
> source ~/.bashrc | > source ~/.bashrc | ||
Line 85: | Line 85: | ||
> source env_name/bin/activate | > source env_name/bin/activate | ||
> cd env_name | > cd env_name | ||
+ | [> deactivate] | ||
</Code> | </Code> | ||
Line 101: | Line 102: | ||
<Code> | <Code> | ||
> pip3 install --user virtualenv | > pip3 install --user virtualenv | ||
+ | > mv ~/.local/bin ~/.local/lib/python3.4/ | ||
> nano ~/.bashrc | > nano ~/.bashrc | ||
ADD: | ADD: | ||
alias virtualenv3='~/.local/lib/python3.4/bin/virtualenv' | alias virtualenv3='~/.local/lib/python3.4/bin/virtualenv' | ||
- | > source .bashrc | + | > source ~/.bashrc |
> virtualenv3 --version | > virtualenv3 --version | ||
15.1.0 | 15.1.0 | ||
</Code> | </Code> | ||
+ | ==== Virtualenvwrapper ==== | ||
+ | |||
+ | [[https://virtualenvwrapper.readthedocs.io/en/latest/]] | ||
+ | |||
+ | === Installation & Configuration === | ||
+ | |||
+ | Install virtualenvwrapper for python3 for the user only: | ||
+ | <Code> | ||
+ | > pip3 install --user virtualenvwrapper | ||
+ | > mv ~/.local/bin/* ~/.local/lib/python3.4/bin/ | ||
+ | > rm ~/.local/bin | ||
+ | > mkdir projects | ||
+ | > nano .bashrc | ||
+ | ADD: | ||
+ | |||
+ | # VirtualenvWrapper | ||
+ | export WORKON_HOME=$HOME/.virtualenvs | ||
+ | export PROJECT_HOME=$HOME/projects | ||
+ | export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3 | ||
+ | export PATH=~/.local/lib/python3.4/bin:$PATH | ||
+ | source $HOME/.local/lib/python3.4/bin/virtualenvwrapper.sh | ||
+ | |||
+ | > source .bashrc | ||
+ | virtualenvwrapper.user_scripts creating /home/dev/.virtualenvs/premkproject | ||
+ | ... | ||
+ | ... | ||
+ | virtualenvwrapper.user_scripts creating /home/dev/.virtualenvs/get_env_details | ||
+ | |||
+ | > mkvirtualenv temp | ||
+ | Using base prefix '/usr' | ||
+ | New python executable in /home/dev/.virtualenvs/temp/bin/python3 | ||
+ | Also creating executable in /home/dev/.virtualenvs/temp/bin/python | ||
+ | Installing setuptools, pip, wheel...done. | ||
+ | ... | ||
+ | ... | ||
+ | (temp) > | ||
+ | </Code> | ||
+ | |||
+ | === Projects management === | ||
+ | |||
+ | [[https://virtualenvwrapper.readthedocs.io/en/latest/projects.html#project-management]] |