I have been playing around a bit with Bitcoin Core (version 23.0), more specifically connecting to different wallets in Bitcoin Core through RPC in Python. I have found this library and tried to connect to my wallet(s) using this code:
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from bitcoinrpc.authproxy import AuthServiceProxy

conn = AuthServiceProxy("http://myusername:mypassword@127.0.0.1:18332/wallet/testingwallet")
print(conn.getwalletinfo())
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But when running this i get this stacktrace:
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Traceback (most recent call last):
  File "/home/kebab/Desktop/pron/testing.py", line 24, in <module>
    print(a.getwalletinfo())
  File "/home/kebab/.local/lib/python3.8/site-packages/bitcoinrpc/authproxy.py", line 141, in __call__
    raise JSONRPCException(response['error'])
bitcoinrpc.authproxy.JSONRPCException: -18: Requested wallet does not exist or is not loaded
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Though what I have noticed is that if i load the wallet using bitcoin-cli -testnet loadwallet testingwallet. Then i can run RPC commands but only get info from that wallet!

And I have created my wallet using: bitcoin-cli -testnet createwallet testingwallet

Any help on this would really be appreciated!