'Web3' object has no attribute 'isConnected'

Question

I am trying to connect to the Ethereum blockchain with Web3. When I install web3 using jupyter notebook I keep receiving the error that Web3 has no attribute. Can someone please advise on how to get connected to the Ethereum network?

MY CODE:

pip install web3

from web3 import Web3, EthereumTesterProvider
w3 = Web3(EthereumTesterProvider())
w3.isConnected()

ERROR:

AttributeError Traceback (most recent call last)
Input In [29], in <cell line: 3>()
  1 from web3 import EthereumTesterProvider
  2 w3 = Web3(EthereumTesterProvider())
----> 3 w3.isConnected()

AttributeError: 'Web3' object has no attribute 'isConnected'

I have tried both web3 and capital Web3 and still receive the same error. I have also tried

w3 = Web3(Web3.EthereumTesterProvider())

but same issues.

score 9 · Answer 1 · answered Mar 19 '23 at 11:00

9

Please try is_connected() instead of isConnected().

answered Mar 19 '23 at 11:00

starmori

196
5

This was changed in Web3 6.0 release to conform with Python coding conventions. The release was made last week. – Mikko Ohtamaa Mar 19 '23 at 11:02
For Python version 3.10 works! – Guillermo Jun 05 '23 at 21:16

score 0 · Answer 2 · answered May 19 '23 at 18:46

0

Web3py has started using snakecase instead of CamelCase, So try is_connected()

answered May 19 '23 at 18:46

saty035

142
2
7

'Web3' object has no attribute 'isConnected'

2 Answers2