Checks email addresses, singularly or within lists, against haveibeenpwned
API key must be placed into a file named hibpapikey.py with the following format:
apikey = "apikeygoeshere"
$ ./hibpcheck.py --help
usage: hibpcheck.py [-h] [-a ACCOUNT] [-l ACCOUNTLOC]
Check email addresses against havibeenpwned.
optional arguments:
-h, --help show this help message and exit
-a ACCOUNT Check a single address
-l ACCOUNTLOC Check against provided newline separated list