Defines two mappings:

• <Plug>run_python3_echo: Evaluate selection (visual mode) or line (normal mode) with :python3 and echo the result (if any)
• <Plug>run_python3_append: Evaluate selection (visual mode) or line (normal mode) with :python3 and put the result (if any) on the next line in the buffer

To use, define custom mappings e.g.

xmap <leader>m <Plug>run_python3_echo
nmap <leader>m <Plug>run_python3_echo
xmap <leader><cr> <Plug>run_python3_append
nmap <leader><cr> <Plug>run_python3_append

Multiline visual selections are supported.

State is preserved as in :python3 commands.

If you want certain modules to always be available, just put python3 import module_name etc. in your $MYVIMRC file.

Requirements

• Your (Neo)vim must have python3 support: :echo has('python3'). See https://neovim.io/doc/user/provider.html for Neovim instructions.