Generate a single cycle pulse wave file in Python 3

make_pulse.py

import wave

fichier = 'pulse.wav'

def main(fichier):
    """
    Generate a single cycle mono pulse of 600 unsigned 8 bytes samples at
    44100 Hz. This should be a D. Loop it and  add 10 steps in your sampler
    to tune it to C.

    - https://docs.python.org/3/library/wave.html
    """
    with wave.open(fichier, 'wb') as wave_buffer:
        nchannels = 1
        sampwidth = 1
        framerate = 44100
        nframes = 600
        comptype = 'NONE'
        compname = 'not compressed'
        wave_buffer.setparams((nchannels, sampwidth, framerate, nframes, comptype, compname))

        sound_ints = [255 if i < 300 else 0 for i in range(nframes)]
        sound_bytes = bytearray(sound_ints)

        wave_buffer.writeframesraw(sound_bytes)

if __name__ == '__main__':
    main(fichier)