Ethereum: Web3.pyでAddress has an invalid EIP checksumのエラーが吐かれる場合
Web3.pyを利用していて、以下のようなコードで表題のエラーが吐かれる場合があります。
token_address = '0xbbfce3c05aef921b35c7264fff21bb08f490a821'
token_abi = open("AlisToken.abi", "r")
token = web3.eth.contract(
address=token_address,
abi=token_abi.read(),
)
結論
この場合、 web3.toChecksumAddress を用いることで解決できます。
token_address = web3.toChecksumAddress('0xbbfce3c05aef921b35c7264fff21bb08f490a821')
token_abi = open("AlisToken.abi", "r")
token = web3.eth.contract(
address=token_address,
abi=token_abi.read(),
)
環境
- AWS Lambda python 3.6
- Web3.py 4.2.0
吐かれたエラー
Traceback (most recent call last):
File "/var/task/lambda_base.py", line 21, in main
result = self.exec_main_proc()
File "/var/task/token_distributer.py", line 36, in exec_main_proc
abi=alis_token_abi.read(),
File "/var/task/web3/eth.py", line 346, in contract
return ContractFactory(address)
File "/var/task/web3/contract.py", line 206, in __init__
self.address = normalize_address(self.web3.ens, address)
File "/var/task/web3/utils/normalizers.py", line 160, in normalize_address
validate_address(address)
File "/var/task/web3/utils/validation.py", line 116, in validate_address
raise InvalidAddress("Address has an invalid EIP checksum", value)
web3.exceptions.InvalidAddress: ('Address has an invalid EIP checksum', '0xbbfce3c05aef921b35c7264fff21bb08f490a821')
('Address has an invalid EIP checksum', '0xbbfce3c05aef921b35c7264fff21bb08f490a821'): InvalidAddress
Traceback (most recent call last):
File "/var/task/handler.py", line 10, in lambda_handler
return token_distributer.main()
File "/var/task/lambda_base.py", line 40, in main
raise err
File "/var/task/lambda_base.py", line 21, in main
result = self.exec_main_proc()
File "/var/task/token_distributer.py", line 36, in exec_main_proc
abi=alis_token_abi.read(),
File "/var/task/web3/eth.py", line 346, in contract
return ContractFactory(address)
File "/var/task/web3/contract.py", line 206, in __init__
self.address = normalize_address(self.web3.ens, address)
File "/var/task/web3/utils/normalizers.py", line 160, in normalize_address
validate_address(address)
File "/var/task/web3/utils/validation.py", line 116, in validate_address
raise InvalidAddress("Address has an invalid EIP checksum", value)
web3.exceptions.InvalidAddress: ('Address has an invalid EIP checksum', '0xbbfce3c05aef921b35c7264fff21bb08f490a821')
Traceback (most recent call last):
File "/var/task/lambda_base.py", line 21, in main
result = self.exec_main_proc()
File "/var/task/token_distributer.py", line 36, in exec_main_proc
abi=alis_token_abi.read(),
File "/var/task/web3/eth.py", line 346, in contract
return ContractFactory(address)
File "/var/task/web3/contract.py", line 206, in __init__
self.address = normalize_address(self.web3.ens, address)
File "/var/task/web3/utils/normalizers.py", line 160, in normalize_address
validate_address(address)
File "/var/task/web3/utils/validation.py", line 116, in validate_address
raise InvalidAddress("Address has an invalid EIP checksum", value)
web3.exceptions.InvalidAddress: ('Address has an invalid EIP checksum', '0xbbfce3c05aef921b35c7264fff21bb08f490a821')
('Address has an invalid EIP checksum', '0xbbfce3c05aef921b35c7264fff21bb08f490a821'): InvalidAddress
Traceback (most recent call last):
File "/var/task/handler.py", line 10, in lambda_handler
return token_distributer.main()
File "/var/task/lambda_base.py", line 40, in main
raise err
File "/var/task/lambda_base.py", line 21, in main
result = self.exec_main_proc()
File "/var/task/token_distributer.py", line 36, in exec_main_proc
abi=alis_token_abi.read(),
File "/var/task/web3/eth.py", line 346, in contract
return ContractFactory(address)
File "/var/task/web3/contract.py", line 206, in __init__
self.address = normalize_address(self.web3.ens, address)
File "/var/task/web3/utils/normalizers.py", line 160, in normalize_address
validate_address(address)
File "/var/task/web3/utils/validation.py", line 116, in validate_address
raise InvalidAddress("Address has an invalid EIP checksum", value)
web3.exceptions.InvalidAddress: ('Address has an invalid EIP checksum', '0xbbfce3c05aef921b35c7264fff21bb08f490a821')
Author And Source
この問題について(Ethereum: Web3.pyでAddress has an invalid EIP checksumのエラーが吐かれる場合), 我々は、より多くの情報をここで見つけました https://qiita.com/sot528/items/7af9982f1fcbbb590ef8著者帰属：元の著者の情報は、元のURLに含まれています。著作権は原作者に属する。
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