Rot13 in Python

necrolin · 05-21-2005, 05:17 AM

I've only just begun getting a taste of Python & have a quick question. Is there any easy way to change a character (Rot13 style, so the letter 'a' becomes the 13th char of the alphabet & the 13th char becomes the 'a', etc) in Python?

Many other programming languages let you just add/subtract 13 to a char to change it, but Python allways concatenates & doesn't seem to allow any operations to be done on strings (yes I know that they're immutable).

The solution is probably SO EASY.... I just can't figure it out....

Any ideas?

(Supa thanks in advanced)

ortho-orange#42 · 05-21-2005, 12:21 PM

Quote:

I've only just begun getting a taste of Python & have a quick question. Is there any easy way to change a character (Rot13 style, so the letter 'a' becomes the 13th char of the alphabet & the 13th char becomes the 'a', etc) in Python?

Once you have a single char in a variable, you can use ord() and chr():

Code:

n='a'
n=chr(ord(n)+13)

of course, as with most lanugages, this won't account for when n='q', and it returns '~'

good luck

necrolin · 05-22-2005, 06:20 AM

Super thanks I'll try that out.