Python Programming Environment Setup @tutoriaLinux

Uploaded January 2017 | Updated September 2026, 2 weeks ago

If you're interested in Python programming basics, you need to learn what Python Virtual Environments (Python virtualenvs) are:
-How to create a Python virtualenv (python 2 and python 3)
-How to use pip, the Python package manager, to:
-find Python libraries and packages
-install Python libraries and packages
-uninstall Python packages
-take a snapshot of current requirements

2:02 - Installing the Python virtual environments package
2:18 - What are Python virtual environments for?
3:45 - Containerization rant (jails, lxc, docker) and how it's similar to virtual environments
4:30 - What virtual environments are, on a practical level
5:31 - How to create a python virtual environment
7:46 - How to activate your Python virtualenv
8:57 - How to create a Python 3 virtualenv

9:37 - How to manage Python packages and libraries with pip, the Python package manager
9:44 - Use pip search to find packages
10:25 - Use pip to install a package into your Python virtualenv
13:42 - Upgrading Python virtualenv packages with pip
14:18 - How to uninstall Python packages from your virtualenv with pip

14:42 - How to deploy a Python application's libraries and packages with requirements.txt
15:42 - Installing a list of requirements from requirements.txt
16:09 - More on how to deploy an application in the real world (common problems)

17:06 - See which packages are currently installed in your Python virtualenv
17:21 - 'Freeze' your currently installed Python packages into a requirements file

17:56 - Basic tips for using Python virtualenvs with Git (.gitignore)

############################
Commands used in this video:
############################

apt-get install python-virtualenv

virtualenv venv
virtualenv -p python3 venv

source venv/bin/activate

pip search foobar
pip install foobar
pip install --upgrade foobar
pip uninstall foobar

pip install -r requirements.txt

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