A little script I made a few years from now to help me with screenshots.
See above in action :
This is a Proof of Concept...
A hacky 2-functions script who is helping a lot!
Rigth, this page is dedicated to a little screenshot tool in the form of a single Python script.
PyQt4 is used for the GUI and Xlib for the area selection feature.
You can select an area and keep screenshoting it without the need to reselect multiple time. If it's what you want, so just use the Select Area button ;)
The delay timer is set by default to 1 second but you can increase that value.
Code from my Github Gist: