fix clean method

main.py

@@ -43,8 +43,11 @@ class JsonToCsv:
 
     def init_db(self):
         self.counter += 1
-        self.ts = time.strftime('%Y%m%d_%H%M%S', time.localtime())
-        self.con = sqlite3.connect(args.output / f"data-{args.name}-{self.ts}-{self.counter}.db")
+        self.ts = time.strftime('%Y%m%d-%H%M%S', time.localtime())
+        db_name = args.output / f"data-{args.name}-{self.ts}-{self.counter}.db"
+        if args.verbose > 0:
+            print(f"creating DB {db_name}")
+        self.con = sqlite3.connect(db_name)
         self.cur = self.con.cursor()
         self.make_tables()
 
@@ -204,7 +207,7 @@ class JsonToCsv:
                         child_attribute = f"{key}_{subKey}"
                         if child_attribute not in attributes:
                             attributes.append(child_attribute)
-                            
+
                 elif value_is_list:
                     existing = children.get(key, {})
                     children[key] = self.extract_child(value, key, f"{top_level}_", existing)
@@ -266,15 +269,14 @@ class JsonToCsv:
             make_archive(args.output, pathlib.Path(f"{top_level}.zip"))
 
 
-json_csv = JsonToCsv()
-
 if __name__ == '__main__':
     if args.verbose >= 1:
         print(f"args = {args}")
 
     if args.clean:
-        for d in args.output.glob("*.csv"):
+        for d in args.output.iterdir():
             print(f"will delete {d}")
             os.unlink(d)
 
+    json_csv = JsonToCsv()
     json_csv.parse_json()