code: def create_folder(dirpath, overwrite=False):
          
          if not overwrite:
              while op.exists(dirpath):
                  dirpath += '+'
  
          os.makedirs(dirpath, exist_ok=overwrite)
          return dirpath
docs: Will create dirpath folder. If dirpath already exists and overwrite is False,
          will append a '+' suffix to dirpath until dirpath does not exist.