Deleting Occurences of Vowels in String

Question

I'm trying to make a program that deleted all vowels from a string but for some reason it is not working. Here is my code in python 3

s = list(input())

vowels = ["A", "E", "I", "O", "U", "Y", "a", "e", "i", "o", "u", "y"]

for i in s:
    if i in vowels:
        s.remove(i)

The code works except for when two vowels are adjacent to each other since it skips and iteration. Please let me know if any of you have any ideas on how I could solve this small issue, thanks!

`s = s.remove(i)`? Also, don't delete while iterating. Better use a list comprehension or regular expression. — tobias_k, Jun 25 '20 at 14:27
Also see [Remove specific characters from a string in Python](https://stackoverflow.com/q/3939361/7851470) — Georgy, Jun 28 '20 at 11:58

ScootCork · Answer 1 · 2020-06-25T14:53:34.640

5

Using list comprehension and join

s = 'Hello world!'
vowels = 'AEIOUYaeiouy'
print(''.join([l for l in s if l not in vowels]))

>>> Hll wrld!

edited Jun 25 '20 at 14:53

answered Jun 25 '20 at 14:28

ScootCork

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score 5 · Answer 2 · answered Jun 25 '20 at 14:42

5

The often-overlooked str.translate is blazingly fast for this. To only delete characters, you can build a translation table using just the third argument of maketrans() If you are dealing with more than tiny text, it may be a better option over a regex:

removeVowels = str.maketrans("","",'AEIOUYaeiouy')
s = "Hello There"
s.translate(removeVowels)
#'Hll Thr'

answered Jun 25 '20 at 14:42

Mark

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This one definitely wins. More than 10 times faster than any rival answer. – rici Jun 25 '20 at 15:28

score 1 · Answer 3 · answered Jun 25 '20 at 14:31

1

Using re

import re

s = input()
vowels = ["A", "E", "I", "O", "U", "Y", "a", "e", "i", "o", "u", "y"]

print(re.sub('|'.join(vowels), '', s)

answered Jun 25 '20 at 14:31

Jab

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score 1 · Answer 4 · answered Jun 25 '20 at 14:33

1

Here's what you can do:

s = input()

vowels = ["A", "E", "I", "O", "U", "Y", "a", "e", "i", "o", "u", "y"]

s = ''.join([i for i in s if i not in vowels])

answered Jun 25 '20 at 14:33

Red

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Vishal Singh · Answer 5 · 2020-06-25T14:45:34.577

1

This uses Regex to solve your problem.

import re

s = input()
results = re.sub(r'[AEIOUYaeiouy]', '', s)

The syntax of re.sub() is:

re.sub(regex_pattern, replacement, input_string)
The method returns a string where matched occurrences are replaced with the content of replacement variable.

edited Jun 25 '20 at 14:45

answered Jun 25 '20 at 14:36

Vishal Singh

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Deleting Occurences of Vowels in String

5 Answers5