jade_casey

I'm a newbie to this Python language and I've had this project for the last two weeks :

Write an n-stepped encryption program.

This is a little different from what I told you in class, so follow these instructions.


The user should be able to set the number of steps that the encoding algorithm uses.

The program should only encrypt upper-case letters, spaces and numbers (any other character in the message should remain unencrypted).
The user should create a text file with an unencrypted message. The program should create a second text file, which is the encrypted message.



Coding Steps:

1. write a function encrypt that takes in a string and a step and implements an n-step encryption algorithm, returning the result
2. write a load function, that reads in all the data in a file
3. write a write function, that writes a string to a file
4. Write a program flow based around these functions
5. Write a program, using functions 1 through 3, to accomplish the assignment.

This is what I've come up with so far:

def read():
a=open("news.txt","r")
text=a.read()
a.close
return text
print


def encrypt(string,n):
result=[]
for char in string:
x=ord(char)
x+=2
result.append(chr(x))
return str(result)

def write(string):
b=open("news.txt","w")
b.write(string)
b.close()
string=[]
write(string)

Can someone please help. I'd really appreciate it.

DaWei

As you're a first-time poster, I would recommend you read the forum's rules/FAQ and a "How to Post..." thread.

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Arevos

Surrounding your code in [code] tags would certainly help. Since Python relies on indentation, it's somewhat hard to evaluate your code without it.

Also, what exactly do you mean by n-stepped? From your code it looks like you're shifting each ascii character by 2n places, but was this the end result you were after?

Sane

Just a misc fact, pressing quote on their message will show you the the version of their message without removed whitespaces.