Vowel Counting Coding Task

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Problem

Quantiphi's text-processing workflows often need simple character-level statistics before applying later transformations. Write a function that counts the number of English vowels in a given text string.

Treat a, e, i, o, and u as vowels, regardless of case. Do not count y as a vowel. Spaces, punctuation, digits, and other characters should be ignored.

Formal Specification

Implement count_vowels(text).

Input: text, a string containing zero or more characters.
Output: An integer representing the total number of vowel characters in text.
The function must not modify the input string.

Constraints

0 <= len(text) <= 10^5
Vowels are limited to the English letters a, e, i, o, and u
Uppercase and lowercase letters must be treated identically
y is not considered a vowel

Function Signature

def count_vowels(text):

Your solutionPython 3

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