Private Ethereum blockchain with Web3

Question

Using instructions from here I have a local private Ethereum blockchain running in a distributed envoirnment as per the diagram below:

|---------| Blockchain Node (192.168.122.111) |---------|

|---------| Processor Node (192.168.122.222) |---------|

Blockchain Node - geth terminal is running here.

Processor Node - does some calculations and write to the Blockchain Node where geth terminal is running. A web3.py script is running here which sends contract deployment request to the blockchain node.

These two nodes are in the same network, and can ping each other. Also I have tried file transfer with Python and its working perfectly.

My problem is: When I try to connected from the Processor Node to the Blockchain Node through this code unable to connect. Please help where I am making mistake?

w3 = Web3(http://192.168.122.111:30000)

account = Account()

acct = account.privateKeyToAccount(private_key_of_Processing_Node) // also tried with private key of Blockchain node EDIT

Error: Could not discover provider while making request: method:eth_chainId

Also I am using following command to connect to geth on the blockchain node

geth --port 3000 --networkid 58343 --datadir=./eth-blockchain --maxpeers=5 --rpc --rpcport 8543 --rpcaddr 192.168.122.111 --rpccorsdomain "*" --rpcapi "eth,net,web3,personal,miner" console 2>>eth.log

Answer 1

w3 = Web3(new Web3.providers.HttpProvider('http://192.168.122.111:<rpc port>'))
w3.eth.accounts.privateKeyToAccount(privateKey)

"rpc port" you set in geth command lines params( --rpcport ) in blockchain node.