How do print the odd letters of an input in python

Question

I have to do this for school, but I can't work it out. I have to get an input and print ONLY the odd characters. So far I've put the input in a list and I have a while loop (which was a clue on the task sheet), but I can't work it out. Please help:

inp = input('What is your name? ')
name = []
name.append(inp)
n=1

while n<len(name):

I know it may not seem like the same thing but take a look at that question. It's useful because the OP does the "modulo trick" (`%2`), which is one common way to do this, and the accepted answer uses slicing, which can be used on strings as well as lists. — Two-Bit Alchemist, Nov 20 '15 at 18:39

Joran Beasley · Accepted Answer · 2015-11-20T18:41:22.813

5

print inp[1::2]

I guess thats all you need

edited Nov 20 '15 at 18:41

answered Nov 20 '15 at 18:39

Joran Beasley

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You could have voted for the dupe target where that's the accepted answer :P – Two-Bit Alchemist Nov 20 '15 at 18:40
Wow -- you win this round of python golf – user590028 Nov 20 '15 at 18:40
1

fixed ... and I also voted(or hammered:P ) to close as dupe ... – Joran Beasley Nov 20 '15 at 18:41

Cory Kramer · Answer 2 · 2015-11-20T18:59:48.013

3

You don't need to put the string in a list, a string is already essentially a list of characters (more formally, it is a "sequence").

You can use indexing and the modulus operator (%) for this

inp = input('What is your name? ')
n = 0   # index variable

while n < len(inp):
    if n % 2 == 1:      # check if it is an odd letter
        print(inp[n])   # print out that letter
    n += 1

edited Nov 20 '15 at 18:59

answered Nov 20 '15 at 18:40

Cory Kramer

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great answer :) and much more educational than mine +1 – Joran Beasley Nov 20 '15 at 18:42
fwiw I would have done what you did had it not been a request for hw help :) – Cory Kramer Nov 20 '15 at 18:59

How do print the odd letters of an input in python

2 Answers2