How can I group while outputs into a single string?

Question

This is a simple encryption code that I've come up with. It uses a single character key.

ar = input('please input string to be de/encrypted:')
key = input('please input single character key:')

def encrypt1(key,ar):
    i = 0
    while i < len(ar):
        br = chr(ord(ar[i])^ord(key))
        i = i+1
        print(br)

encrypt1(key,ar)

print('Input string = ' + ar+'\n'+'key = '+key)

If I input "CMPUT" for the string to be encrypted and 'a' as the key I will get this printed output:

"
,
1
4
5

Which is the correct encryption (according to my assignment example). Now I just have to get those outputs into a single string and print them in the shell like such:

>>>decrypted string: ",145

I've looked through google and old questions on this website but I've still come up empty. I would appreciate your help.

possible duplicate of [How can I suppress the newline after a print statement?](http://stackoverflow.com/questions/12102749/how-can-i-suppress-the-newline-after-a-print-statement) — Jasper, Mar 18 '15 at 16:27

score 0 · Answer 1 · answered Mar 18 '15 at 16:31

0

Most obvious way for a beginner would be to simply accumulate to a string

def encrypt1(key,ar):
    i = 0
    result = ""
    while i < len(ar):
        br = chr(ord(ar[i])^ord(key))
        i = i+1
        result += br
    return result

Usually you would just write it using a generator expression

def encrypt1(key,ar):
    return ''.join(chr(ord(i) ^ ord(key)) for i in ar)

answered Mar 18 '15 at 16:31

John La Rooy

295,403
53
369
502

Thanks! I used part of this code as well as the above. – magnolia84 Mar 18 '15 at 17:17

bivo · Accepted Answer · 2015-03-18T16:51:14.050

0

Check out this code, I believe this is what you need (I changed print(br) line):

ar = input('please input string to be de/encrypted:')
key = input('please input single character key:')

def encrypt1(key,ar):
    i = 0
    while i < len(ar):
        br = chr(ord(ar[i])^ord(key))
        i = i+1
        print(br, end='')

encrypt1(key,ar)

print('\nInput string = ' + ar+'\n'+'key = '+key)

edited Mar 18 '15 at 16:51

answered Mar 18 '15 at 16:36

bivo

100
1
2
15

I change last line in my example, that should fix the problem. (Simply add `\n`) – bivo Mar 18 '15 at 16:51
I literally just figured that out before you posted it (thank god for google). Thanks for your help. This works the best. I would upvote but I'm new to this website. – magnolia84 Mar 18 '15 at 16:52

How can I group while outputs into a single string?

2 Answers2