how to convert one string seperated by commas into individual strings (python)

how can i change this.

a= ['man, boy, mum']

into

a=['man', 'boy', 'mum']

I have tried replacing the commas with (‘) but it does not work.
any help will be appreciated

>Solution :

Here is a quick answer for you

>>> a = ['man, boy, mun']
>>> result = a[0].split(',')
>>> result
['man', ' boy', ' mun']

Now you need to clean up the white spaces (‘ ‘).