Update develop.md (docker#17383)

Executing "USE inventory" query instead of closing and connecting again

Author: Younes-ch

language/python/develop.md

@@ -121,15 +121,7 @@ def db_init():
 
     cursor.execute("DROP DATABASE IF EXISTS inventory")
     cursor.execute("CREATE DATABASE inventory")
-    cursor.close()
-
-    mydb = mysql.connector.connect(
-        host="mysqldb",
-        user="root",
-        password="p@ssw0rd1",
-        database="inventory"
-    )
-    cursor = mydb.cursor()
+    cursor.execute("USE inventory")
 
     cursor.execute("DROP TABLE IF EXISTS widgets")
     cursor.execute("CREATE TABLE widgets (name VARCHAR(255), description VARCHAR(255))")