Iterm2 python api script for reruning the last command in a special tab, to be bound to a global shortcut

iterm2-rerun-last-command.py

#!/usr/bin/env python3.7

import iterm2
# This iterm 2 script can be bound to a global shortcut so you can rerun the
# previous command in a special tab without switching focus

async def main(connection):
    app = await iterm2.async_get_app(connection)
    session_id = await app.async_get_variable("user.rspec")

    session = None

    if session_id is not None:
        session = app.get_session_by_id(session_id)

    if session is None:
        window = app.current_window
        if window is not None:
            tab = await window.async_create_tab()
            await tab.async_set_title("(repeat-last-command)")
            session = tab.current_session
            session_id = session.session_id
            await app.async_set_variable("user.rspec", session_id)

    clear_session = b'\x1b' + b']1337;ClearScrollback' + b'\x07'
    await session.async_inject(clear_session)

    await session.async_send_text('!!\n\n')

iterm2.run_until_complete(main)