Here are a few useful links about VIM editor. Good overview of some nifty feature. https://www.cs.oberlin.edu/~kuperman/help/vim/home.html .vimrc tutorial at linuxhint. Vimrc Tutorial
Vim tips and links
Numpy – array of strings.
Numpy supports strings and array of strings. It is fixed length. If you replace an array element with a longer string it truncates it to fit. Each python character is 4 bytes ( unicode ). So a 40 character element in the array is 160 bytes. See example from Notebook below.