In the following Code:
#class variables and methods
blank = Point
blank.x = 2.0
blank.y = 6.0
print('(%g,%g)' % (blank.x,blank.y))
It prints (2.0, 6.0), i.e. the values in blank.x and blank.y.
I don't understand the % operator in front of the (blank.x, blank.y) in the last line. What does it do and where can I find it in the documentation?