def new_getpass(username):
    with open("/etc/passwd", "r") as f:
        for entry in [l.split(":") for l in f.readlines()]:
            if entry[0] == username:
                return entry
    return None

database1|abcd1234
database2|zyxw0987

def getpass(database):
    with open("credentials.dat", "r") as f:
        for entry in [l.split("|") for l in f.readlines()]:
            if entry[0] == username:
                return entry[1]
    return None