      def process_folder(self):
          """ Iterate through the frames dir pulling the base filename """
          print("Loading file list from {}".format(self.folder))
          for frame in os.listdir(self.folder):
              filename = os.path.basename(frame)
              yield filename
  
      def load_items(self):
          """ Load the frame info into dictionary """
 
</s>
            if not self.valid_extension(frame):
                continue
      def process_folder(self):
          """ Iterate through the frames dir pulling the base filename """
          print("Loading file list from {}".format(self.folder))
          for frame in os.listdir(self.folder):
            if not self.valid_extension(frame):
                continue
              filename = os.path.basename(frame)
              yield filename
  
      def load_items(self):
          """ Load the frame info into dictionary """
keep keep keep add keep keep keep keep keep
 Alignments Tool - File extension bugfix (#478)

* Add filename extension check for image folders
tools/alignments.py