CODEWITHSUNDEEP
pythonencryption
user1655562
user1655562

Reputation: 81

Python Encryption

So for an exam question I've followed this specific pseudo code which basically makes a program which encrypts a number sequence using the same principle as the ceasar cipher. It should work but for some reason it returns the error.

TypeError: 'int' object is not iterable

Heres the code, i hope you guys can help me, much appreciated 

plainNum = input("enter a number to encode ") 
codedNum = ' '
Key = input("enter a key ")

for i in plainNum:
    codedNum = codedNum + str((int(i)+key)%10)
    print codedNum

Upvotes: 0

Views: 409

Answers (4)

Gopher
Gopher

Reputation: 21

This is working but not if I use a decimal and it doesn't behave if I enter words or spaces. Consider checking first that the entry is a number with something like:

try:
    float(element)
except ValueError:
    print "Not a float"

after stripping any whitespace with something like:

plainNum = plainNum.strip()

But this outputs the encoded digits of your entered integer:

plainNum = raw_input("enter a number to encode ") 
codedNum = ' '
key = input("enter a key ")

for i in plainNum:
    codedNum = codedNum + str((int(i)+key)%10)
    print codedNum

Ask the user for the number with raw_input. This makes the input a string which you can iterate over with:

for char in plainNum:

Yes, this is a now a char in a string and so you've used the int(i) function.

Upvotes: 1

TehTris
TehTris

Reputation: 3217

you maybe also wanna change key to Key to reflect what variable is declared and also make codeNum initially equal to '' instead of ' ' (no space vs space) just book keeping stuff

Upvotes: 0

Aida Paul
Aida Paul

Reputation: 2722

Most dirty fix of all, simply change 

for i in plainNum:

with

for i in str(plainNum):

Upvotes: 2

Martijn Pieters
Martijn Pieters

Reputation: 1124348

Use raw_input if you expect a string:

plainNum = raw_input("enter a number to encode ")

input() interprets the input as if it is Python code; enter 5 and it'll return an integer, enter 'some text' (with quotes) and it'll return a string. raw_input() on the other hand returns the entered input uninterpreted.

Upvotes: 5

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