iterm_automation.py

#!/usr/bin/env python3.7

# Import iterm2 library
import iterm2

async def main(connection):
    # Get current window
    app = await iterm2.async_get_app(connection)
    window = app.current_terminal_window
    if window is not None:
        # Create new tab, get session and print text
        tab = await window.async_create_tab()
        session = tab.current_session
        
        # \n is crucial as it simulates Enter.
        await session.async_send_text('echo "hello world from main pane"\n')

        # Create new pane on the right and print text
        pane2 = await session.async_split_pane(vertical=True)
        await pane2.async_send_text('echo "hello world from pane 1"\n')

        # Create new pane at the bottom of pane2 and print text
        pane3 = await pane2.async_split_pane(vertical=False)
        await pane3.async_send_text('echo "hello world from pane 2"\n')

        # Create new pane at the bottom of main pane (session) and print text
        pane4 = await session.async_split_pane(vertical=False)
        await pane4.async_send_text('echo "hello world from pane 3"\n')
    else:
        print("No current window")

iterm2.run_until_complete(main)