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How to Delete Vowels from a String in Python – GATE, Interview & Placement Practice
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Jun 1, 2025
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0:00
uh hello guys welcome to this video so
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in this video I will show you a very py
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very common program which is asked
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inside Python interviews placements and
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competitive exams such as GATE so how to
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remove vowels from a sentence vowels are
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as you know it's a e i o
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u
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so vowels are special kind of uh
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variables which exist in the which
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which these are vowels here a e i o u
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and also in capital letters as well so
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these are different vowels here if you
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want to remove all the vowels from a
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sentence
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then we have this python program which
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is written right here if I execute this
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Python
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program you will see original string was
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hello welcome to Python programming but
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now string without vowels is you can see
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E is
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removed again e is removed o is also
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removed so this is actually the output
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here all
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those characters are removed which are
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vovel characters so you get this output
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so this question is specifically program
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is asked here so I will show you the
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output what is this is a program here so
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I will use a special program here which
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is Python tutor which actually shows the
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step-by-step execution of the program so
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you can visualize it step by step
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online so first of all we define this
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function here which is in the global
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frame which is remove vowels it actually
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takes the actual sentence from which you
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want to remove the vowel characters we
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pass it as an argument now in the next
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step we provide the input string right
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here which is hello welcome to Python
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programming so we now need to remove the
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wobbles and now we are simply calling
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this function here which is remove vels
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and it actually takes the text as an
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argument so we are simply calling this
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function
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so now we are defining all the vowels
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inside this variable vowels so as you
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can see all the vowels are stored so
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that we can remove it from this
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sentence so quite a number of different
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ways you can do but I'm using the very
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popular and the very simplest of way by
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using a for loop and for this we need
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separate variable to store the result so
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for this we declare a result
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variable where we will be storing the
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output text and now we'll be using the
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for
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loop so we will do this for each and
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every character we will be comparing it
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whether they are equal to these set of
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characters so one by one we will do this
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so for this that's why we are using for
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loop so for every character in this text
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that we got we will loop through so we
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will come to the first character so the
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first character as you can see is h h is
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not equal to this
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uh all these characters the wobbles h is
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not a vowel so it will be added in the
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result so this will be added here you
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can see the execution of the program
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again it will move to the next character
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which is E e is a wobble so this
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condition will
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be not be executed so this E will not be
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added in the result so it will move to
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another L l will be added you can see
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that again L will be added so you can
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just see the control how the control of
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the control flow is executed in the
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program it will navigate to O o is also
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present so O will be reflected comma is
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not a vowel so comma will be added w
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is not a vowel space also is added you
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can see that so it will run for each
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character here so let me just fast
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forward it so you can see the output
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coming right here step by step so it is
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removing all the wobbles characters
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which we defined in the wobbles variable
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so it is just having this if condition
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and this then it printed out the actual
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result so the program is pretty simple
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we simply use this for loop and just we
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have this if condition you just
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predefined all the vowels in this
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variable so we are simply checking in
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with this if condition if the then we
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are adding the result
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so thank you very much guys for watching
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this video and also check out my website
4:49
freemediatetools.com
4:50
uh which contains thousands of tools
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