CODEWITHSUNDEEP
python
TomC
TomC

Reputation: 3

"Slicing" and "Replacing" a string for homework

I am stuck on a problem for my class. The pic of the problem is down below. I'm trying to convert this string "abcd efgh ijkl" to this "AbCd eFgH IjKl" using ordinal function/values to capitalize even index numbers.

This is what I got so far:

def mock(string):
    index = 0
    for i in string:
        if string.find(i, index) % 2 == 0:
            string.replace(i,(chr(ord(i) - 32)))
        index = string.find(i) + 1
    return string

print(mock("abcd efgh ijkl"))

Any help is appreciated.

Pic of the problem

Upvotes: 0

Views: 109

Answers (3)

ListenSoftware Louise Ai Agent
ListenSoftware Louise Ai Agent

Reputation: 4243

use a for loop and a upper the string by index character

def capitalize(string):
    result=""
    for i in range(len(string)):
        if i%2==0:
            result+=string[i].upper()
        else:
            result+=string[i]
    return result

string="abcd efgaah ijklaaa"
print(capitalize(string))

output:

AbCd eFgAaH IjKlAaA

Upvotes: -1

jda5
jda5

Reputation: 1446

All credit to Andrej Kesely for providing a solution, but I just wanted to improve on it slightly. Since you are already iterating over a string, and the .find() method returns an index position, you do not need to keep track of the index! I've tested the code below and it works just as well.

def mock(string):
    for i in string:
        if i != ' ' and string.find(i) % 2 == 0:
            string = string.replace(i, (chr(ord(i) - 32)))
    return string

The above returns "AbCd eFgH IjKl"

Upvotes: 1

Andrej Kesely
Andrej Kesely

Reputation: 195438

str.replace returns string, but you aren't assigning the return value to anything. Also you need to handle spaces correctly (thanks @JacobStrauss for further simplification!) 

def mock(string):
    for i in string:
        if i != ' ' and string.find(i) % 2 == 0:
            string = string.replace(i, (chr(ord(i) - 32)))
    return string

print(mock("abcd efgh ijkl"))

Prints:

AbCd eFgH IjKl

Upvotes: 2

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