Use
duration_seconds = mywav.getnframes() / mywav.getframerate()
to get the duration of a WAV file in seconds.
Full example:
import wave with wave.open("myaudio.wav") as mywav: duration_seconds = mywav.getnframes() / mywav.getframerate() print(f"Length of the WAV file: {duration_seconds:.1f} s")