Why can't I stop vim from wrapping my code?

Question

I can\'t stop vim from wrapping my Python code. If I enter :set nowrap like a champ, but it still wraps.

I can hit J to unite the split lines

Answer 1

None of the other answers worked for me (IDK why).

:set wrap! Did the trick for me (using GVim for Windows).

Answer 2

For preventing vim from wrapping long lines I use these two lines in my .vimrc:

set nowrap           " do not automatically wrap on load
set formatoptions-=t " do not automatically wrap text when typing

Answer 3

Vim may have to be in vi-compatible mode.