I use vim for writing most of my C and Python code. For python I tend to use vim-flake8 for automated PEP8 checking. However I always forget how to install vim-flake8 and hence am writing this post

First install pathogen

mkdir -p ~/.vim/autoload ~/.vim/bundle && \
curl -LSso ~/.vim/autoload/pathogen.vim https://tpo.pe/pathogen.vim

Then install the vim-flake8 plugin

cd ~/.vim/bundle
git clone https://github.com/nvie/vim-flake8.git

Finally add the following lines to .vimrc

execute pathogen#infect()
filetype off 
syntax on
filetype plugin indent on
autocmd BufWritePost *.py call Flake8()