How to Convert a data-list(each value available in bracket) into the python list form?

Question

I have data list available in below format:

AA = [['Monday'],['Tuesday'],['Wednesday'],['Thursday'],['Friday'],['Saturday'],['Sunday']]

I am trying to convert into the list format by using below

list(AA)

but it does't help me to get expected output as below. list(AA) is returning with same value as AA

Expected output:

AA= ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday']

how can I achieve expected output by using any python command?