How to extract largest possible string's alpha substrings

I want to extract some kind of variable names from the string (digits, _, etc. not allowed), without any imports (pure python only) and as short as possible (even if it’s unreadable).

How can i do it?

Example:

"asd123*456qwe_h" -> [asd, qwe, h].

(‘a’, ‘qw’, etc. not allowed)

>Solution :

Built-ins only:

s = 'asd123*456qwe_h'
print(s.translate(str.maketrans({k: ' ' for k in s if not k.isalpha()})).split())

Output:

['asd', 'qwe', 'h']