python-pytorch-installation.md

installing Python

method 1: create a virtual environment for python :

• it is recommanded to use a python version >=3.6

   $ sudo apt-get update && sudo apt-get upgrade
   $ sudo apt install python3.x
   # you can specify the python version if it is installed by adding the flag --python=python3.x
   $ sudo apt install python3-venv
   $ sudo apt install -y python3-pip
   $ python3 -m venv 'environement_name' # you can use pytorch as a name
   $ source 'environement_name'/bin/activate
   # packages for a robust setup
   $ sudo apt install build-essential libssl-dev libffi-dev python3-dev
  

method 2: install miniconda to manage virtual envs :

• download & install miniconda for ubuntu from this link

• create your python environment with

   $ conda create -n "env_name" python=3.x
  

• activate your environment with

   $ conda activate "env_name"
  

• proceed and install your python libraries with pip

installing PyTorch

• activate your environment

    $ conda activate "env_name"
    or 
    $ source env_name/bin/activate
  

• install pytorch

    $ pip install torch torchvision torchaudio
  
    or a specific version
  
    $ pip install pytorch==1.10.1 torchvision==0.11.2 torchaudio==0.10.1
  
    # test pytorch installation
    $ python
    $ import torch
  
    # test if pytorch is using gpu
    $ torch.cuda.is_available() # should return True
  
    # if no errors are shown they your pytorch is installed
  
    # if you are going to install pytorch on cpu s
    $ pip install pytorch==1.10.1 torchvision==0.11.2 torchaudio==0.10.1 cpuonly