I need you to develop some software for me. I would like this software to be developed for Mac using Python. Web based tool to upload files to a server and modify files. Files will be in DICOM format, it's a binary image format. Tools are already available for modifying the DICOM files. Just need to develop the software that will perform the upload, do some validation, then ask for some input from the user, and then run the existing Dicom modifying tools.