How to extract the value between the key using RegEx?

I have text like:

"abababba"

I want to extract the characters as a list between a.
For the above text, I am expecting output like:

['b', 'b', 'bb']

I have used:

re.split(r'^a(.*?)a$', data)

But it doesn’t work.

>Solution :

The ^ and $ will only match the beginning and end of a line, respectively.
In this case, you will get the desired list by using the line:

re.split(r'a(.*?)a', data)[1:-1]