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python.txt
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>>>>> Python <<<<<<<<
---------------------------------------
---------------------------------------
# Topics
Virtual Environment
Python Installation On Ubuntu
---------------------------------------
>>>>>>>>>> Virtual Environment <<<<<<<<<<<<<<<<<
# Python 3.8 Installation on Ubuntu 20.04:
Step 1: Update and Refresh Repository Lists
sudo apt update
Step 2: Install Supporting Software
sudo apt install software-properties-common
Step 3: Add Deadsnakes PPA
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
Step 4: Install Python 3.8 :
sudo apt install python3.8
python3 --version
Step : Installing venv
sudo apt install python3.8-env
Step 5: Creating Virtual Environments
python3 -m venv env01
Step 6: Create new directory
mkdir project01
cd project01
Step 7: Activating the virtual environment
project01> env01/bin/activate
Output:
(env01) ajay@sisaudiya:~/python01$
To deactivate a virtual environment
project01> deactivate
Output:
ajay@sisaudiya:~/python01$
>>>>>>>>>> Virtual Environment <<<<<<<<<<<<<<<<<
Website:
https://packaging.python.org/en/latest/guides/installing-using-pip-and-virtual-environments/#installing-virtualenv
> py -m pip install --upgrade pip
> py -m pip --version // Check pip versioon
> py -m pip install --user virtualenv //Installing virtualenv
> py -m venv env //Creating a virtual environment
> .\env\Scripts\activate //Activating a virtual environment
> where python
> ...\env\Scripts\python.exe
> deactivate //Leaving the virtual environment
> py -m pip install requests //Installing packages
> py -m pip install django //Install Django
------------------------------------------------------------------------
------------------------------------------------------------------------
# Python Installation On Ubuntu
How To Install Python 3 and Set Up a Programming Environment on an Ubuntu 20.04 Server
Step 1 — Setting Up Python 3
sudo apt update
sudo apt -y upgrade
python3 -V
sudo apt install -y python3-pip
pip3 install package_name
sudo apt install -y build-essential libssl-dev libffi-dev python3-dev
Step 2 — Setting Up a Virtual Environment
sudo apt install -y python3-venv
mkdir environments
cd environments
python3 -m venv my_env
ls my_env
source my_env/bin/activate
Shwoing on screen
(my_env) sammy@ubuntu:~/environment$
Step 3 — Creating a “Hello, World” Program
(my_env) sammy@ubuntu:~/environment$ nano hello.py
hello.py
print("Hello, World!")
(my_env) sammy@ubuntu:~/environment$ python hello.py
Output:
Hello, World!
--------------------------------------------------------------------------