Strong password detectionSkills and elements usedRegular expression matching, string processingProgram specificationWrite a program that uses regular expressions to make sure a password string passed in via commandline is strong. A strong password is defined as one that is:$1.$ At least eight characters long$2.$ Contains both uppercase and lowercase characters$3.$ Has at least one digitVerify that the user has passed in a password and display an error if they have not.If the password fails, relay to the user the reason for the failure. You will likely need to test the stringagainst multiple regex patterns to validate its strength.Example$ python password$\_$strength.pyError: You must supply a passwordEx. python password$\_$strength.py My$\_$pass$1$$ python password$\_$strength.py My$\_$pass$1$Password meets specification$ python password$\_$strength.py Mypass$1$Password is too short$ python password$\_$strength.py MypasswordPassword must contain at least one digit