How to search for each elements of a list in a string in python

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Perl

Python

Let's say there's a list

vowels = ['a', 'e', 'i', 'o', 'u']
x = raw_input("Enter something?")

Now how to find instances of these vowels in the x?

.find won't work.

What I want to do is to stop at the first instance of vowel and modify it as such that x becomes characters of the word that user inputted minus the vowel and what followed after the vowel.

For example if user inputted "tree", then x should be modified such that x becomes "tr"

another example:
"flower" will become "fl"