On keystroke insert line of code in (mac)vim, for pdb

Question

I'm looking for the way to insert a line of code with a keystroke like leaderp in Macvim

I want to insert the following line of code:

import pdb; pdb.set_trace()

Probably not an unheard of line of code in python land

Answer 1

I'd use a simple mapping (without functions) to leader p:

nnoremap <leader>p oimport pdb; pdb.set_trace()<Esc>

When pressing o, this enters insert mode inserts a blank line after the current one (with o) and then types import pdb; pdb.set_trace(), finally it goes back to normal mode (with Esq).

---

If you want to insert the code before the current line replace o by O:

nnoremap <leader>p Oimport pdb; pdb.set_trace()<Esc>

Or alternatively you could set this for leader shift-p:

nnoremap <leader><S-p> Oimport pdb; pdb.set_trace()<Esc>

Answer 2

Why not try the vimpdb plugin? Alternatively, if your looking for snippet functionality, the combination of the supertab and snipmate plugins works great.

Answer 3

This might not be the best vimscript every but it does wat you want! :-) Just place this in your .vimrc and you can call it with leader p.

map <Leader>p :call InsertLine()<CR>

function! InsertLine()
  let trace = expand("import pdb; pdb.set_trace()")
  execute "normal o".trace
endfunction