Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Collections (2016, retired 2019) Lists Disemvowel

Posted by Min Kwang Ng
Min Kwang Ng
17,743 Points

Got expected result when testing on my own but not passing the check

I checked on workspaces that the code I had removed all upper and lower case vowels from any string. However it still does not pass the check. Can someone please explain what else I need to do?

disemvowel.py 
def disemvowel(word):
    vowels = 'aeiou'
    letter_list = list(word)
    for letter in letter_list:
        if letter.lower() in vowels:
            letter_list.remove(letter)

    word = ''.join(letter_list)

    return word

1 Answer

james south
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points
james south
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points

did you try a word with consecutive vowels like beauty? some vowels will get through. this is because you are modifying a list while looping through it. when you call remove, it removes the indicated item, then shifts the remaining items to the left. the loop however moves on to the next item, resulting in items getting skipped. to fix you can make a copy and loop through that while modifying the original, or vice versa.