Ya puedo actualizar gran parte de la lista, solo me hace falta la imagen. El motivo es que me están reportando cada 5min, hicieron un script para reportarme una lista y estoy haciendo un script que reponga esa lista...

playlist_upload_cover_image(playlist_id, image_b64)
Replace the image used to represent a specific playlist
Parameters:
• playlist_id - the id of the playlist
• image_b64 - image data as a Base64 encoded JPEG image string (maximum payload size is 256KB

Eso es lo que dice la documentación para la función playlist_upload_cover_image, y mi imagen es de menos de 256kb, realmente no sé que error tengo... Por si es de alguna ayuda, es la info de la documentación.

Hola, probé lo que me dijiste y al parecer si me hacía falta convertir la imagen a base64, pero cambio de problema y ahora me rechaza la conexión cuando corro el programa.

Traceback (most recent call last):
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 703, in urlopen
    httplib_response = self._make_request(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 398, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 239, in request
    super(HTTPConnection, self).request(method, url, body=body, headers=headers)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1240, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1286, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1235, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1045, in _send_output
    self.send(chunk)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 967, in send
    self.sock.sendall(data)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1204, in sendall
    v = self.send(byte_view[count:])
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1173, in send
    return self._sslobj.write(data)
ConnectionResetError: [WinError 10054] Se ha forzado la interrupción de una conexión existente por el host remoto

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 489, in send
    resp = conn.urlopen(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 785, in urlopen
    retries = retries.increment(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\retry.py", line 550, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\packages\six.py", line 769, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 703, in urlopen
    httplib_response = self._make_request(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 398, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 239, in request
    super(HTTPConnection, self).request(method, url, body=body, headers=headers) 
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1240, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1286, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1235, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1045, in _send_output
    self.send(chunk)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 967, in send
    self.sock.sendall(data)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1204, in sendall
    v = self.send(byte_view[count:])
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1173, in send
    return self._sslobj.write(data)
urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionResetError(10054, 'Se ha forzado la interrupción de una conexión existente por el host remoto',
None, 10054, None))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File ".\editar_lista.py", line 38, in <module>
    profile = sp.playlist_upload_cover_image(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spotipy\client.py", line 708, in playlist_upload_cover_image
    return self._put(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spotipy\client.py", line 312, in _put
    return self._internal_call("PUT", url, payload, kwargs)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spPS C:\webproject\Py\Practicas> python .\editar_lista.py
Ingrese la lista que desea editar667U0NGki2QKI0mltfTUnl
Traceback (most recent call last):
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 703, in urlopen
    httplib_response = self._make_request(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 398, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 239, in request
    super(HTTPConnection, self).request(method, url, body=body, headers=headers) 
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1240, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1286, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1235, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1045, in _send_output
    self.send(chunk)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 967, in send
    self.sock.sendall(data)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1204, in sendall
    v = self.send(byte_view[count:])
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1173, in send
    return self._sslobj.write(data)
ConnectionAbortedError: [WinError 10053] Se ha anulado una conexión establecida por el software en su equipo host

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 489, in send
    resp = conn.urlopen(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 785, in urlopen
    retries = retries.increment(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\retry.py", line 550, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\packages\six.py", line 769, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 703, in urlopen
    httplib_response = self._make_request(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 398, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 239, in request
    super(HTTPConnection, self).request(method, url, body=body, headers=headers) 
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1240, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1286, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1235, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1045, in _send_output
    self.send(chunk)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 967, in send
    self.sock.sendall(data)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1204, in sendall
    v = self.send(byte_view[count:])
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1173, in send
    return self._sslobj.write(data)
urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionAbortedError(10053, 'Se ha anulado una conexión establecida por el software en su equipo host',
None, 10053, None))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File ".\editar_lista.py", line 38, in <module>
    profile = sp.playlist_upload_cover_image(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spotipy\client.py", line 708, in playlist_upload_cover_image
    return self._put(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spotipy\client.py", line 312, in _put
    return self._internal_call("PUT", url, payload, kwargs)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spPS C:\webproject\Py\Practicas> python .\editar_lista.py
Ingrese la lista que desea editar667U0NGki2QKI0mltfTUnl
Traceback (most recent call last):
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 703, in urlopen
    httplib_response = self._make_request(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 398, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 239, in request
    super(HTTPConnection, self).request(method, url, body=body, headers=headers) 
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1240, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1286, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1235, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1045, in _send_output
    self.send(chunk)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 967, in send
    self.sock.sendall(data)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1204, in sendall
    v = self.send(byte_view[count:])
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1173, in send
    return self._sslobj.write(data)
ConnectionAbortedError: [WinError 10053] Se ha anulado una conexión establecida por el software en su equipo host

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 489, in send
    resp = conn.urlopen(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 785, in urlopen
    retries = retries.increment(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\retry.py", line 550, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\packages\six.py", line 769, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 703, in urlopen
    httplib_response = self._make_request(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 398, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 239, in request
    super(HTTPConnection, self).request(method, url, body=body, headers=headers) 
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1240, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1286, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1235, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1045, in _send_output
    self.send(chunk)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 967, in send
    self.sock.sendall(data)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1204, in sendall
    v = self.send(byte_view[count:])
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1173, in send
    return self._sslobj.write(data)
urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionAbortedError(10053, 'Se ha anulado una conexión establecida por el software en su equipo host',
None, 10053, None))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File ".\editar_lista.py", line 38, in <module>
    profile = sp.playlist_upload_cover_image(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spotipy\client.py", line 708, in playlist_upload_cover_image
    return self._put(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spotipy\client.py", line 312, in _put
    return self._internal_call("PUT", url, payload, kwargs)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\spotipy\client.py", line 240, in _internal_call
    response = self._session.request(
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\sessions.py", line 587, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
  File "C:\Users\marb2\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 547, in send
    raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', ConnectionAbortedError(10053, 'Se ha anulado una conexión establecida por el software en su equipo host', None, 10053, None))

Me muestra ese error, tienes alguna idea? Muchas gracias por la ayuda