CODEWITHSUNDEEP
pythonencryption
Barney
Barney

Reputation: 11

Making a decryption program in python

So a little while ago I asked for some help with an encryption program,
And you guys were amazing and came up with the solution.
So I come to you again in search of help for the equivalent decryption program. The code I have got so far is like this:

whinger = 0
bewds = raw_input ('Please enter the encrypted message: ')
bewds = bewds.replace(' ', ', ')
warble = [bewds]
print warble
wetler = len(warble)
warble.reverse();
while whinger < wetler:
    print chr(warble[whinger]),
    whinger += 1

But when I input
101 103 97 115 115 101 109
it comes up with the error that the input is not an integer.
What I need is when I enter the numbers it turns them into a list of integers.
But I don't want to have to input all the numbers separately.

Thanks in advance for your help :P

Upvotes: 1

Views: 837

Answers (4)

martineau
martineau

Reputation: 123393

Here's almost the simplest way I can think of to do it:

s = '101 103 97 115 115 101 109'
numbers = []
for number_str in s.replace(',', ' ').split():
    numbers.append(int(number_str))

It will allow the numbers to be separated with commas and/or one or more space characters. If you only want to allow spaces, leave the ".replace(',', ' ')" out.

Upvotes: 1

Volatility
Volatility

Reputation: 32300

You could also use map

numbers = map(int, '101 103 97 115 115 101 109'.split())

This returns a list in Python 2, but a map object in Python 3, which you might want to convert into a list.

numbers = list(map(int, '101 103 97 115 115 101 109'.split()))

This does exactly the same as J. F. Sebastian's answer.

Upvotes: 0

Jendas
Jendas

Reputation: 3579

Your problem is, that raw_input returns a string to you. So you have two options.

1, Use regular expression library re. E.G.:

import re
bewds = raw_input ('Please enter the encrypted message: ')
some_list = []
for find in re.finditer("\d+", bewds):
    some_list.append(find.group(0))

2, Or you can use split method as described in the most voted answer to this question: sscanf in Python

Upvotes: 0

jfs
jfs

Reputation: 414079

To convert input string into a list of integers:

numbers = [int(s) for s in "101 103 97 115 115 101 109".split()]

Upvotes: 2

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