Automatically change working directories in NeoVim via the terminal

.zshrc

# This function calls the script below when loaded by
# the shell inside of neovim. It must be placed somewhere in
# your default shell's rc file e.g. ~/.zshrc

neovim_autocd() {
    [[ $NVIM_LISTEN_ADDRESS ]] && neovim-autocd.py
}
chpwd_functions+=( neovim_autocd )

neovim_autocd.py

#!/usr/bin/env python
# Automatically change neovim's working directory via
# the built in terminal.
# 
# Full neovim configuration:
# https://github.com/DrSpeedy/nvimrc
#
# Original issue thread:
# https://github.com/neovim/neovim/issues/3294

import neovim
import os

nvim = neovim.attach('socket', path=os.environ['NVIM_LISTEN_ADDRESS'])
nvim.vars['__autocd_cwd'] = os.getcwd()
nvim.command('execute "lcd" fnameescape(g:__autocd_cwd)')
del nvim.vars['__autocd_cwd']