Those with Flickr Pro accounts know very well that the task of constantly trying to figure out which photos you have uploaded or not, to avoid duplicates, is not something they look forward to…

Lifehacker pointed out a very nice Python script to help automate uploading of photos from your computer to Flickr.

Automatically upload a folder’s photos to Flickr – Automation – Lifehacker.

Once you’ve set it up (works on Windows, Mac and probably on Linux as well), it monitors a folder of choice and uploads any new photos directly to your Flickr account. Privacy options can also be customized.