CODEWITHSUNDEEP
pythonpython-3.xif-statementrange
Sam Jereria Manuel
Sam Jereria Manuel

Reputation: 41

I want to print letters(strings) with odd or even numbers as their index and save them as a list

I want to print and save letters of this word "complexity"; I want to iterate through the word and get every letter that has an even number as its index, store or save it in a list, and also get every letter that has an odd number as its index and save it as a list in their respective variables. Below is the code.

word = "complexity"
even_letters = ""
odd_letters = ""
for index in range(0,len(word)):

    if int(index) % 2 == 0:
       even_letters = word[index]
   else:
        odd_letters = word[index]

print(list(even_letters))
print(list(odd_letters))

But my results shows only this:

['t']

['y']

What am I doing wrong?

Upvotes: 1

Views: 2677

Answers (3)

kuppern87
kuppern87

Reputation: 1135

This can be done more easily with list comprehensions:

even_letters = [c for i, c in enumerate(word) if i % 2 == 0]
odd_letters = [c for i, c in enumerate(word) if i % 2 == 1]

Upvotes: 1

dahrs
dahrs

Reputation: 91

If, as you said, you want to save the different letters as a list then you even_letters and odd_letters must be initialized as lists and you must append the letters, not reseting their value. If I were you I would also use the enumerate option in python so you can get the index and the letter at the same time.

word = "complexity"
even_letters = []
odd_letters = []
for index, letter in enumerate(word):
    if index % 2 == 0:
        even_letters.append(letter)
    else:
        odd_letters.append(letter)
print(list(even_letters))

print(list(odd_letters))

If you want to obtain a string instead of a list, then you can change even_letters = letter and odd_letters = letter for even_letters += letter odd_letters += letter

Upvotes: 1

Carcigenicate
Carcigenicate

Reputation: 45806

You're overwriting the strings instead of adding to them.

Change

even_letters = word[index]

To

even_letters += word[index]

= reassigns (overwrites). += appends (add to).

Upvotes: 2

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