How to pass the word under curor as the para to the command

command! -nargs=1 -bar Pyhelp :call ShowPydoc(<f-args>)
nnoremap <buffer> <silent> K :exe ":Pyhelp expand('<cword>')"

I define a ShowPydoc func,

If you type ":Pyhelp xxx"

you will get the help of xxx.

Now I want to map the K to the that if I move the curor on the word that I want to get the helpdoc.

But expand('<cword>') here can't get the word under curor and pass the "expand(<'cword'>)" to the func.

And I try :echo expand(<'cword'>) it worked,

How can I fix it?

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.