Projects

Personal project/practices

https://realpython.com/primer-on-python-decorators/

Installing packages using pip and virtual environments

This guide discusses how to install packages using pip and a virtual environment manager: virtualenv for Python 3.

Installing pip

pip is the reference Python package manager. It’s used to install and update packages. You’ll need to make sure you have the latest version of pip installed.

This is for Linux only

Debian and most other distributions include a python-pip package, if you want to use the Linux distribution-provided versions of pip see Installing pip/setuptools/wheel with Linux Package Managers.

You can also install pip yourself to ensure you have the latest version. It’s recommended to use the system pip to bootstrap a user installation of pip:

$ python3 -m pip install --user --upgrade pip

Afterwards, you should have the newest pip installed in your user site:

$ python3 -m pip --version

Installing Virtualenvwrapper

If you're using Ubuntu 19.10 or below then write:

$ pip install virtualenvwrapper

If you're using Ubuntu 20.04 or above then write:

$ pip3 install virtualenvwrapper

This is because python2 has been deleted from ubuntu 20.04 and in order to use python or pip we have to write "3" in the end:

After that open your terminal and write:

$ sudo nano .bashrc

Then in the last add these lines:

export WORKON_HOME=$HOME/.virtualenvs
export PROJECT_HOME=$HOME/.virtualenvs
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
export VIRTUALENVWRAPPER_VIRTUALENV=/home/YOUR_USERNAME/.local/bin/virtualenv
source ~/.local/bin/virtualenvwrapper.sh

To make your virtual environment write the below command:

$ mkvirtualenv (name of your environment)

Leaving the virtual environment

If you want to switch projects or otherwise leave your virtual environment, simply run:

$ deactivate

In order to continue working with your previous environment just write the below command:

$ workon (name of your environment)

If you want to re-enter the virtual environment just follow the same instructions above about activating a virtual environment. There’s no need to re-create the virtual environment.

Terminal Shortcuts:

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