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This is a python program that can convert bianry number( binary is a language that computers use to comunicate with other) to a normal digital number and the other way around.

Python, 96 lines
 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96``` ```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() ```

well i know that there are a lot of people who do not undestand binary numbers yet so this is a code for the people who do not have the time to sit down and calculate or to learn binary counting.

#### 1 comment

Dirk Holtwick 17 years, 10 months ago

Build in. To convert binary to decimal you may also try this one:

``````>>> int("101",2)
5
``````

``````>>> int("f", 16)