I am trying an tutorial on web3.py
so i created a profile in infura and used its project id.But it shows false always when i try web3.isConnected()
PS C:\Users\HP> python
Python 3.6.3 (v3.6.3:2c5fed8, Oct 3 2017, 18:11:49) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from web3 import Web3
>>> infura_url = "mainnet.infura.io/v3/******************************"
>>> web3 = Web3(Web3.HTTPProvider(infura_url))
>>> web3.isConnected()
False