TypeError: init() got an unexpected keyword argument 'encoding' when calling client.simGetImage

[amadorneto]

Bug report

• AirSim Version/#commit: 1.8.1
• UE/Unity version: Unreal 4.27.2
• autopilot version: N/A
• OS Version: Ubuntu 20.04.5

What's the issue you encountered?

I tried to take one image from the Car simulation and followed the code shown in https://microsoft.github.io/AirSim/image_apis/. Still, it's not running and giving the error TypeError: init() got an unexpected keyword argument 'encoding'.
I tried upgrading the packages msgpack-rpc-python (0.4.1), msgpack-python (0.5.6), and msgpack (1.0.4), besides installing the package msgpack-numpy (0.4.8), but it didn't solve the problem.
I'm using Python 3.8.

Settings

I didn't change the camera settings.

How can the issue be reproduced?

To execute the python script shown in https://gist.github.com/amadorneto/9327a9aac6f5538ef56c8a71254822a3 using Python 3.8.

Include full error message in text form

Traceback (most recent call last):
File "camera_example.py", line 6, in
png_image = client.simGetImage("0", airsim.ImageType.Scene)[0]
File "/home/amador/.local/lib/python3.8/site-packages/airsim/client.py", line 287, in simGetImage
result = self.client.call('simGetImage', camera_name, image_type, vehicle_name, external)
File "/home/amador/.local/lib/python3.8/site-packages/msgpackrpc/session.py", line 41, in call
return self.send_request(method, args).get()
File "/home/amador/.local/lib/python3.8/site-packages/msgpackrpc/session.py", line 51, in send_request
self._transport.send_message([message.REQUEST, msgid, method, args])
File "/home/amador/.local/lib/python3.8/site-packages/msgpackrpc/transport/tcp.py", line 89, in send_message
self.connect()
File "/home/amador/.local/lib/python3.8/site-packages/msgpackrpc/transport/tcp.py", line 98, in connect
socket = ClientSocket(stream, self, self._encodings)
File "/home/amador/.local/lib/python3.8/site-packages/msgpackrpc/transport/tcp.py", line 53, in init
BaseSocket.init(self, stream, encodings)
File "/home/amador/.local/lib/python3.8/site-packages/msgpackrpc/transport/tcp.py", line 12, in init
self._packer = msgpack.Packer(encoding=encodings[0], default=lambda x: x.to_msgpack())
File "msgpack/_packer.pyx", line 124, in msgpack._cmsgpack.Packer.init
TypeError: init() got an unexpected keyword argument 'encoding'

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[xinzhichao]

i get the same error. have you solve it?