Hello, I recently brew installed vim 9.1 on my mac, and I installed python-mode. This is all I have in my .vimrc file.

" Pathogen load
filetype off

call pathogen#infect()
call pathogen#helptags()

filetype plugin indent on
syntax on

let g:pymode_trim_whitespaces = 1
" Turn on the rope script
let g:pymode_rope = 1

I started testing out python-mode by creating a python script. I noticed my "Delete" key on my keyboard no longer deletes any tabs or spaces in insert mode. I have to use the x key in normal mode to remove any unwanted tabs or spaces.