My Ubuntu 18.04 pre-installed python 3.6, but not installed pip, so the first installation:
apt-get install python-pip
1. Install the virtual environment needed to package:
pip install virtualenv pip install virtualenvwrapper
Wherein the second packet is the encapsulated packet to the first command, the command because it is too complicated, difficult to operate.
Although the installation is complete, but still can not use the command, you must first do the following:
Create a directory to store the virtual environment:
mkdir $HOME/.virtualenvs
Setting environment variables, add ~ / .bashrc file following two lines:
export WORKON_HOME=$HOME/.virtualenvs source /usr/local/bin/virtualenvwrapper.sh
With the source command to make the changes just takes effect immediately:
source ~/.bashrc
Virtualenv related to this command is ready to use.
2. Create a virtual environment
mkvirtualenv your_name
3. Start using virtual environments
workon your_name
4. Exit the virtual environment
deactivate
5. Delete the virtual environment
rmvirtualenv your_name
6. Review which is currently used Python
which python