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?
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