import string
from string import maketrans
ip = string.lowercase
op = ip[2:]+ip[:2]
ciphersubtab = maketrans(ip, op)
ipstr = "g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp. bmgle gr gl zw fylb gq glcddgagclr ylb rfyr'q ufw rfgq rcvr gq qm jmle. sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj"
opstr = ipstr.translate(ciphersubtab)
print opstr Thursday 5 September 2013
Solution to the python challenge Caesar crypt puzzle
Here is my solution to the Python Challenge Caesar crypt with shift. Very simple but teaches a python beginner a lot of its concepts about python and good hands-on exercise to solve oneself:
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#!/usr/local/bin/python
if __name__ == "__main__":
ct = """g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp. bmgle gr gl zw fylb gq glcddgagclr ylb rfyr'q ufw rfgq rcvr gq qm jmle. sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj"""
bits = ct.split(" ")
chs = list("abcdefghijklmnopqrstuvwxyz")
mes = ""
for bit in bits:
for bt in bit:
if bt in chs:
i = chs.index(bt)
if i == 24:
i = 0
mes = mes + chs[i]
elif i == 25:
i = 1
mes = mes + chs[i]
else:
mes = mes + chs[i+2]
else:
mes = mes + bt
mes = mes + " "
print mes
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