Problem with Ethereum Transfer to the Bep20 Chain Using Web3 in Python
As a long -time developer and ethereum user, I recently encountered a problem when I was trying to transfer USDT from my mainnet portfolio to another using the web3 library in python. In this article we will hide in the Details of the Problem and Provide a Solution.
The Problem:
The Error Message shows that there is a problem with the generation or verification of the transaction (Txhash) from the web3 library. The Exact Error Message is:
`
I Can’t Send USDT to the Bep20 Chain Using Web3
`
This suggests that the contract that processes the transfer of USDT along the Bep20 chain is not compatible with ethereum mainnet.
code:
Here’s A Simplified Example of What the Code May Look Like:
`Python
Import web3
Set Up the Web3 Library
W3 = web3.Web3 ()
Contact Ethereum MAVINET
W3.eth.Setwallet ("MAINNET")
Get a USDT Transfer Contract Address
Contract_addr = w3.eth.get contractat ('0x ...', '0x ...')
Determ the USDT Amount and Destination Address
USDT_Amount = 10 ** 18
destination_addr = "0x ..."
Perform The Transaction
tx_hash = w3.eth.sendransction (
{
'by': 'Maveto',
'To': Destination_addr,
'Value': USDT_Amount * 1e18,
"GASPRICE": W3.Towei ('20', 'Gwei'),
'Nonce': W3.eth.GeTtransctioncount (W3.eth.GeWallet ('Mainnet')),
},
{
"Signed": {'Address': '0x ...'},
}
))
Print ("Transaction hash:", tx_hash.hex ())
The Problem:
In this code, we try to send USDT from the mainnet portfolio to a contract on the Bep20 chain. The Problem Arises when we use the function w3.eth.get contractat () to obtain the USDT transfer contract. However, Ethereum contracts are deployed with specific addresses that do not correspond to the address of the mainnet portfolio.
Decision:
To fix this problem, you need to unfold the contract on Another Ethereum Network, Such as ropsten or rinkeby, and then the w3.eth.get contractat () function to obtain the USDT transfer address. Here’s an updated example:
`Python
Import web3
Set Up the Web3 Library
W3 = web3.Web3 ()
Contact Ethereum MAVINET
W3.eth.Setwallet ("MAINNET")
Determine Contract Address Bep20 and ABI
Contract_addr_bep20 = w3.eth.get contractat ('0x ...', '0x ...')
Abi = {
'Constant': True,
"Entrances": [
{'Name': '_Value', 'Type': 'Uint256'},
{'Name': '_To', 'Type': 'Address'},
{'Name': 'Value', 'Type': 'Uint256'},
"", ","
"Statemutability": "View",
"Type": "Function",
}
Unleash the Bep20 contract
Contract = W3.eth.DePloy contract (ABI, [contract_addr_bep20])
Determ the USDT Amount and Destination Address
USDT_Amount = 10 ** 18
Perform The Transaction
tx_hash = contract. functions.usdttransfer (USDT_Amount) .Transact ()
Print ("Transaction hash:", tx_hash.hex ())
In this updated Example, we deploy the Ropsen BPP20 contract using w3t.eth.devoy contract (). We then use the `contract. functions.usdttransfer () ‘feature to obtain the functionality of the transfer of USDT and make the transaction.
Conclusion:
In Conclusion, when you are trying to send USDT from Mainnet Portfolio to Another Using Web3 in Python, You must unfold the contract on Another Ethereum Network and Update The Contract Address Accordingly. Following thesis steps, you need to be able to solve the problem and successful transfer USDT Between Mainnet’s portfolios.
Note:
Please be sure to check your ethereum account settings to make sure are compatible with the other’s networks (for Example, Mainnet vs. Ropsten). Also, always check the addresses of the contract and abi before implementation contracts on New Networks.