Setting a vim variable to a python output

问题

How would I do something like the following in vim:

echom "hello"
pyx print('New item')
let a = (pyx import socket; socket.gethostname())
echom a

The first and second lines work; but how to assign a variable name to a python value/output?

回答1:

Import module vim and execute vim's command let passing value from Python:

:py3 import socket, vim; hn=socket.gethostname(); vim.command('let vim_hn="'+hn+ '"')

hn=… assigns a variable in Python; 'let vim_hn="'+hn+ '"' passes its value to command let; something like let vim_hn="myhost"; vim.command() executes that let from Python.

Now you can inspect the value in vim:

:echo vim_hn

回答2:

I've experimented a few approaches

• I prefer :let vimvar = pyxeval('PythonExpression') from vim code when possible
• Sometimes vim.command('let vimvar = ...') makes more sense, in particular from Python code.

来源：https://stackoverflow.com/questions/62478766/setting-a-vim-variable-to-a-python-output