Computer Programming using python
posted by Anonymous .
Assume s is a string of lower case characters.
Write a program that counts up the number of vowels contained in the string s. Valid vowels are: 'a', 'e', 'i', 'o', and 'u'. For example, if s = 'azcbobobegghakl', your program should print:
Number of vowels: 5
For problems such as these, do not include raw_input statements or define the variable s in any way. Our automating testing will provide a value of s for you - so the code you submit in the following box should assume s is already defined.
> vowels = "aeiou"
> [x for x in "azcbobobegghakl" if x in vowels]
['e', 'e', 'i', 'a']
> len([x for x in "azcbobobegghakl" if x in vowels])