added user table and import function

lib/users.py

@@ -0,0 +1,38 @@
+class Users:
+    def parse(self, xml, userid):
+        self.userid = userid
+        self.login = xml.get("login")
+        self.realname = xml.find("login").get("realname")
+        self.email = xml.find("login").get("email")
+
+        return self
+
+    def __str__(self):
+        return f"User {self.userid} {self.login}: {self.realname} {self.email}"
+
+    def __repr__(self):
+        return f"[{self.__str__()}]"
+
+    def import_into_db(self, db):
+        cur = db.cursor()
+        cur.execute(
+            """INSERT INTO users (userid, login, realname, email) 
+                VALUES (%s,%s,%s,%s) RETURNING id""",
+            (
+                self.userid,
+                self.login,
+                self.realname,
+                self.email,
+            ),
+        )
+        cur.close()
+
+    def user_lookup(self, db, userid):
+        cur= db.cursor()
+        cur.execute("SELECT * FROM users where userid=%s", (userid,))
+        row = cur.fetchone()
+        if not row:
+            cur.close()
+            return None
+        return row
+