path issue fixed

model.py

@@ -24,7 +24,7 @@ class api():
         self.upload_path = upload_path
 
         # self.model_name = 'cnn_model'
-        print('print',os.path.join('signs_api','{}.meta'.format(self.model_name)))
+        print('print',os.path.join('{}.meta'.format(self.model_name)))
 
         # self.import_meta = tf.train.import_meta_graph(os.path.join('signs_api','{}.meta'.format(self.model_name)))