import speech_recognition as sr

recognizer = sr.Recognizer()
with sr.Microphone() as source:
    print("Speak something...")
    audio = recognizer.listen(source)
    try:
        text = recognizer.recognize_google(audio)
        print("You said: {}".format(text))
    except sr.UnknownValueError:
        print("Could not understand audio.")
    except sr.RequestError as e:
        print("Error with API: {}".format(e))