I'm from mechanical background. Just explain me use of % sign in following code. This is a program to display exam schedule.

Question

exam_st_date = (11,12,2014)
print( "The examination will start from : %i / %i / %i"%exam_st_date)

Answer 1

%d and %I are used as a placeholder for numeric or decimal values.

see the Python String Formatting Manual:

http://docs.python.org/2/library/stdtypes.html#string-formatting