import sys, os, time
def binaryToDigital():
os.system('cls')
while True:
print "To go back to the main menu type 'e' and press enter"
print
print """Binary numbers consist of only '1's and '0's
"""
binary = raw_input('Type in the binary number: ')
if binary == "e":
mainmenu()
else:
binarylist = list(binary)
no = len(binarylist)
no = no -1
diginum = 0
i = 0
while no > -1:
if binarylist[no] == '1':
kj = 2**i
diginum = diginum + kj
no = no -1
i = i +1
print diginum
raw_input()
def digitalToBinary():
os.system('cls')
try:
while True:
print "To go back to the main menu type 'e' and press enter"
print
number = raw_input('Type in the digital number: ')
if number == "e":
mainmenu()
else:
number = int(number)
aaa = str(number)
i = 0
numlist = []
while number != 0:
numlist.append(number)
number = number/2
i = i + 1
binarynum = []
i = i-1
while i !=-1:
bd = str(numlist[i])
bdl = list(bd)
bdn = len(bdl)
bdn = bdn - 1
bx = bdl[bdn]
if bx == '0' or bx == '2' or bx == '4' or bx == '6' or bx == '8':
binarynum.append('0')
if bx == '1' or bx == '3' or bx == '5' or bx == '7' or bx == '9':
binarynum.append('1')
i = i - 1
print ''.join(binarynum)
raw_input()
except ValueError:
print "The input should only numbers"
digitalToBinary()
raw_input()
def credit():
os.system('cls')
text = """###########################
Author: phinix bss
Date : 04/06/2006
Vision: Binary-converter 1.0
###########################
"""
for character in text:
sys.stdout.write(character);sys.stdout.flush(),time.sleep(.03),
raw_input()
def mainmenu():
while True:
os.system('cls')
menu = """What du you want to do?
1) Convert digital to binary
2) Convert binary to digital
3) Credits
4) Exit
pick choice [1-4] : """
choice = raw_input(menu)
if choice == "1":
digitalToBinary()
if choice == "2":
binaryToDigital()
if choice == "3":
credit()
if choice == "4":
sys(exit)
mainmenu()
