Python 3.7 compatibility and Port Audio Error

README.md

@@ -22,6 +22,19 @@
 
 You can visualize the real-time speaker diarization of an audio stream with the built-in demo script.
 
+## Set up PortAudio on Local Windows Environment 
+
+Refer sounddevice docs :  https://python-sounddevice.readthedocs.io/en/0.4.4/
+
+PortAudio Docs : http://portaudio.com/docs/v19-doxydocs/tutorial_start.html
+
+
+## To set up PortAudio on Google Colab Running on Python 3.7 (As of 10th MARCH 2022) : 
+
+
+`!apt install libasound2-dev portaudio19-dev libportaudio2 libportaudiocpp0 ffmpeg
+`
+
 ### Stream a recorded conversation
 
 ```shell

src/diart/functional.py

@@ -1,4 +1,6 @@
-from typing import Union, Optional, List, Literal, Iterable, Tuple
+from typing import Union, Optional, List, Iterable, Tuple
+from typing_extensions import Literal 
+
 
 import numpy as np
 import torch