fixed up a few issues found from linter

person.py

@@ -7,6 +7,8 @@ from sqlalchemy.exc import SQLAlchemyError
 from status import st, Status
 from refimg import Refimg
 
+# pylint: disable=no-member
+
 ################################################################################
 # Class describing Person in the database, and via sqlalchemy, connected to the DB as well
 ################################################################################
@@ -16,7 +18,7 @@ class PersonRefimgLink(db.Model):
     refimg_id = db.Column(db.Integer, db.ForeignKey('refimg.id'), unique=True, nullable=False, primary_key=True)
 
     def __repr__(self):
-        return "<person_id: {}, refimg_id>".format(self.person_id, self.refimg_id)
+        return f"<person_id: {self.person_id}, refimg_id: {self.refimg_id}>"
 
 
 class Person(db.Model):