Keyboard recorder for screencasts

recorder.py

import sys
import keyboard
import pickle
import os

if len(sys.argv) == 1:
    filename = input('Input filename to save/load events: ')
else:
    filename = sys.argv[1]

if os.path.exists(filename):
    segments = pickle.load(open(filename, 'rb'))
    for i, segment in enumerate(segments):
        print('Press F1 to play segment {}/{}'.format(i+1, len(segments)))
        print('Duration: {} seconds'.format(segment[-1].time - segment[0].time))
        keyboard.wait('F1')
        keyboard.play(segment)

else:
    print('Press F1 to save this fragment. Press F2 to discard it. Press ESC twice to finish.')

    segments = []
    segment = []

    def handle_event(event):
        global segment

        if event.matches('F1'):
            if event.event_type == keyboard.KEY_DOWN:
                if segment:
                    segments.append(segment)
                segment = []
                print('Saved', len(segments))
        elif event.matches('F2'):
            if event.event_type == keyboard.KEY_DOWN:
                segment = []
                print('Discarded')
        else:
            segment.append(event)

    keyboard.listener.add_handler(handle_event)
    keyboard.wait('esc, esc')
    keyboard.listener.remove_handler(handle_event)

    pickle.dump(segments, open(filename, 'wb'))
    print('Saved {} segments to {}'.format(len(segments), filename))

When recording, press F1 to save the current segment, F2 to discard it, and press ESC twice to finish. Give an existing file to play back saved segments.

Requires pip install keyboard.