[BUG] Recursive printing

[AdrianM0]

I tried to use the code like this:

for index, sub_list in enumerate(self.substituent_list):
            main([os.path.join(path_to_skeletons, skeleton_list_[index])], sub_list, self.path_to_database, path_to_substituents,\
                      os.path.join(path_to_skeletons), chemspax_working_directory, path_to_output)

My intent was to do one skeleton + 1 list of substituents at a time coming from a pandas dataframe. The following output is displayed at some point:

The program works as intended, but the printing seems to also occur recursively.