Print only vowels in a string
Solution 1
Something like this?
sentence = input('Enter your sentence: ' )
for letter in sentence:
if letter in 'aeiou':
print(letter)
Solution 2
The two answers are good if you want to print all the occurrences of the vowels in the sentence -- so "Hello World" would print 'o' twice, etc.
If you only care about distinct vowels, you can instead loop over the vowels. In a sense, you're flipping the code suggested by the other answers:
sentence = input('Enter your sentence: ')
for vowel in 'aeiou':
if vowel in sentence:
print(vowel)
So, "Hey there, everything alright?" would print
a e i
As opposed to:
e e e e e i a i
And the same idea, but following Jim's method of unpacking a list comprehension to print
:
print(*[v for v in 'aeiou' if v in sentence])
Solution 3
Supply provide an a list comprehension to print
and unpack it:
>>> s = "Hey there, everything allright?" # received from input
>>> print(*[i for i in s if i in 'aeiou'])
e e e e e i a i
This makes a list of all vowels and supplies it as positional arguments to the print call by unpacking *
.
If you need distinct vowels, just supply a set comprehension:
print(*{i for i in s if i in 'aeiou'}) # prints i e a
If you need to add the else clause that prints, pre-construct the list and act on it according to if it's empty or not:
r = [i for i in s if i in 'aeiou']
if r:
print(*r)
else:
print("empty")
Ruben
Updated on July 01, 2020Comments
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Ruben almost 4 years
I am new in Python and I'm trying to print all the vowels in a string. So if someone enters "Hey there, everything alright?" , all vowels needs to be printed...but I don't know how? (so it's not about counting the vowels, its about printing the vowels)
For now I've got this ;
sentence = input('Enter your sentence: ' ) if 'a,e,i,o,u' in sentence: print(???) else: print("empty")
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PM 2Ring over 7 yearsSee Deleting consonants from a string in Python for a variety of useful techniques that can be applied to this problem.
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