Virtualenv for Python development

by prashere 10 years ago

GNU/Linux ◆ xterm ◆ bash 1794 views

This terminal cast shows you how to install and create a virtualenv for python development using Ubuntu (actually LinuxMint) machine.

Install virtualenv and virtualenvwrapper using pip or easy_install
Find the location of virtualenvwrapper.sh shell script, copy the location.
Open the .bashrc or .bash_profile or .profile based on your system.

Append these two lines to the file

 export WORKON_HOME=$HOME/.virtualenv
 source <paste the location of the file>

Save and close the file, run source .profile or .bashrc or .bash_profile
As we are done with setting path for virtualenvwrapper, we are now going to create a virtualenv named ‘django’
```
 mkvirtualenv django
```
The above command creates a virtual environment named django and installs the basic modules like distribute, argparse and wsgrief thus setting up a virtual python environment to work. You will automatically enter the virtualenv on successful creation.
To come out of virtualenv
```
 deactivate
```

To enter into a virtualenv

 workon django (or) name of the virtualenv you have created.

To install a package inside virtualenv

pip install packagename
Eg: pip install Django

If you already have requirement.txt file setup with your project
```
pip install -r requirement.txt
```

This installs the modules freezed inside requirement.txt using pip freeze command

(Note: No need to use sudo inside virtualenv, just use pip install)

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