Refactor 'con' attribute to 'connexion' for clarity and consistency.

Author: rcboufleur

python/lsst/consdb/transformed_efd/dao/base.py

@@ -39,14 +39,14 @@ class DBBase:
     Attributes
     ----------
         engine (Engine): The database engine.
-        con: The database connection.
+        connexion: The database connection.
         dialect: The database dialect.
         db_uri (str): The URI of the database.
 
     """
 
     engine: Engine = None
-    con = None
+    connexion = None
     dialect = None
     db_uri: str
 
@@ -102,11 +102,11 @@ def get_con(self):
             The database connection.
 
         """
-        if self.con is None:
+        if self.connexion is None:
             engine = self.get_db_engine()
-            self.con = engine.connect()
+            self.connexion = engine.connect()
 
-        return self.con
+        return self.connexion
 
     def get_table(self, tablename, schema=None) -> Table:
         """Retrieve a table object from the database.