I have installed latest version (2.2.4)of keras from Github just yesterday.

I forgot to mention one thing. I have only one folder which contains both train and test data images (ex. dog vs cat examples are in the same folder), train_df and test_df has ‘image_name’ column which indicates which images are part of train & test set. Does flow_from_dataframe work in such case for test_data_generator?

I am using flow_from_dataframe for another problem where I have 2 separate folders for train and test set for which I am getting correct count for test datagenerator. As I mentioned above, here I have separate folder for test set. Please let me know your thoughts.