1. Put the pygdb directory to somewhere, lets call it
in this help file.
2. Add the following lines into your ~/.vimrc:
python << >>
import sys
#Do not use a ~ for home directory
pygdbdir = ""
sys.path.append(pygdbdir)
>>
autocmd BufRead *.c* source /pygdb.vim
autocmd BufRead *.c* call GDBMapDefaults()
where you replace by the corresponding path of pygdb. You may want to
add to the environment variable PATH such that you cou can call pygdb
from console directly.
If you like, you can add the following line. It leads to a configuration file
loading when opening a source file
autocmd BufRead *.c* :GDBLoadConfig