iterm2 script for reloading all panes in a window

auto_reload.py

#!/usr/bin/env python3.7
import iterm2

async def get_last_line(session):
  async with session.get_screen_streamer() as streamer:
    ready = False
    while ready != True:
      content = await streamer.async_get()
      for i in range(content.number_of_lines):
        line = content.line(content.number_of_lines-i-1)
        if line.string != "":
          return line.string

async def main(connection):
    app = await iterm2.async_get_app(connection)
    @iterm2.RPC
    async def reload_all_sessions():
        window = app.current_terminal_window
        tab = window.current_tab
        for old_pane in tab.sessions:
            await old_pane.async_send_text("pwd\n", True)
            last_line = await get_last_line(old_pane)
            new_pane = await old_pane.async_split_pane(vertical=False)
            await new_pane.async_send_text(f"cd \"{last_line}\"\n", True)
            await old_pane.async_send_text("fge\n", True)
    await reload_all_sessions.async_register(connection)

iterm2.run_forever(main)