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Python Python Collections (2016, retired 2019) Lists Disemvowel

Posted by Victor Gavojdea
Victor Gavojdea
11,796 Points

Removing all vowels

Not sure why it's not passing, it works when I run it in PowerShell.

EDIT: Apparently this doesn't remove some vowels if they are right next to each other...

disemvowel.py 
def disemvowel(word):
    word = list(word)
    vowels = ["a", "e", "i", "o", "u"]
    for letter in word:
        if letter.lower() in vowels:
            word.remove(letter)
    word = ''.join(word)
    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

you are modifying a list while looping through it. when remove is called, it removes the indicated element, then shifts remaining elements to the left. the loop moves on to the next original element however, so elements get skipped. to fix you can make a copy of the list and loop through that while modifying the original or vice versa.

Victor Gavojdea
Victor Gavojdea
11,796 Points

Thank you!