[Printer: Font and back] A simple script in python to calculate the front pages and the back pages depending in the initial page, the final page and the number of pages per side.

calcForPrint.py

#read firt page
first= int(raw_input('First page to print? : '))
#read last page
last= int(raw_input('Last page to print?  : '))
#pages the front
pages= int(raw_input('Pages per side?  : '))
result={}
key='a'
result.setdefault(key, [])
key='b'
result.setdefault(key, [])
print "first was "+str(first)+" and last was "+str(last)
i='a'
for x in range(first, last+1, pages):
    for z in range(0,pages):
        result[i].append(x)
        x=x+1
    if (i=='a'):
        i='b'
    else:
        i='a'

print "front page: "+str(result['a'])
print "back page: "+str(result['b'])