In nft scope ,how to use python translate the lower contract_address to the standard display

Question

i want to follow the ECR-721 rule to standardize the display of all the contract_addresses that are made up with the low character

i d like to change 0xa66cc78067fd1e6aa3eec4ccdff88d81527f92c1 into 0xA66CC78067fd1E6Aa3eEC4CcdFF88D81527F92c1 Have any one know the regular and true rule