strings.count_vowels
====================

.. py:module:: strings.count_vowels


Functions
---------

.. autoapisummary::

   strings.count_vowels.count_vowels


Module Contents
---------------

.. py:function:: count_vowels(s: str) -> int

   Count the number of vowels in a given string.

   :param s: Input string to count vowels in.
   :return: Number of vowels in the input string.

   Examples:
   >>> count_vowels("hello world")
   3
   >>> count_vowels("HELLO WORLD")
   3
   >>> count_vowels("123 hello world")
   3
   >>> count_vowels("")
   0
   >>> count_vowels("a quick brown fox")
   5
   >>> count_vowels("the quick BROWN fox")
   5
   >>> count_vowels("PYTHON")
   1