Black or dark stools are a common side effect that may be the harmless result of unabsorbed iron. Whether you are taking iron supplements alone or a multivitamin with iron, you may experience this. Check with your doctor or healthcare provider to find the cause of black stools.
CCYYMMDD is just yyyyMMdd. The CC is for the two digit century which is the same as the first two digits of the year. I think people do that because people see yyyy and still type 12 instead of 2012. So today's date would be 20120717.
What is a PY file? Files that contain the .py file extension are used by the Python Software for its Python programming language. Python is an object-oriented programming language that is used for the development of a variety of different software applications. The PY file is a program file that contains script that has been written in the Python language. Python can be run on a variety of platforms including Windows, Mac, Unix and Linux as well as a variety of mobile operating systems.