plein de truc : uniformisation des chronomètres, ajout de requête, print un rapport à la fin et le sauvegarde dans un .txt

PostgreSQL.py

@@ -10,6 +10,9 @@ def connect_postgres():
     )
 
 def create_tables_postgres():
+    start_time = 0
+    end_time = 0
+
     sql_command_create_table= (
         """CREATE TABLE airlines
         (
@@ -78,6 +81,8 @@ def create_tables_postgres():
     return end_time-start_time
 
 def create_data_postgres():
+    start_time = 0
+    end_time = 0
     sql_command_copy =(
         """COPY airlines FROM 'C://Users//Public//2015_Flight_Delay_and_cancellations//airlines.csv' DELIMITER ',' NULL AS ''""",
         """COPY airports FROM 'C://Users//Public//2015_Flight_Delay_and_cancellations//airports.csv' DELIMITER ',' NULL AS ''""",
@@ -94,29 +99,36 @@ def create_data_postgres():
         conn.close()
     except (psycopg2.DatabaseError, Exception) as error:
         print(error)
-    return end_time - start_time
+    return end_time-start_time
 
 def requete_postgres(str):
+    start_time = 0
+    end_time = 0
     try:
         with connect_postgres() as conn:
             with conn.cursor() as cursor:
-                start = time.time()
+                start_time = time.time()
                 cursor.execute(str)
             conn.commit()
-            end = time.time() -start
+            end_time = time.time()
             cursor.close()
         conn.close()
     except (psycopg2.DatabaseError, Exception) as error:
         print(error)
-    return end-start
+    return end_time-start_time
 
 def reset_database_postgres():
+    start_time = 0
+    end_time = 0
     try:
         with connect_postgres() as conn:
+            start_time = time.time()
             with conn.cursor() as cursor:
                 cursor.execute('DROP TABLE IF EXISTS flights,airlines,airports,flights10')
             conn.commit()
+            end_time = time.time()
             cursor.close()
         conn.close()
     except (psycopg2.DatabaseError, Exception) as error:
-        print(error)
+        print(error)
+    return end_time-start_time