The alphabetized kata
---------------------
Re-order the characters of a string, so that they are concatenated into a new string in "case-insensitively-alphabetical-order-of-appearance" order. Whitespace and punctuation shall simply be removed!
The input is restricted to contain no numerals and only words containing the english alphabet letters.
Example: 
```python
alphabetized("The Holy Bible") # "BbeehHilloTy"
```
_Inspired by [Tauba Auerbach](http://www.taubaauerbach.com/view.php?id=73)_
def alphabetized(s):
    return ''.join(sorted( ''.join([x for x in s if x.isalpha()]) , key=lambda x: x.lower()))
def alphabetized(s):
    return ''.join(sorted( ''.join([x for x in s if x.isalpha()]) , key=lambda x: x.lower()))