How can I change my two functions to be more readable functions (i.e. in steps), because I am using pycharm.

```
import collections

def compute_word_importance(fpath1,fpath2):

    mylist1 = []
    mylist2 = []
    with open(fpath1, 'rt', encoding='UTF-8') as f:
        for line1 in f:
            for word in line1.split(" "):
                if word.strip('\n'):
                    mylist1.append(word.strip())
    with open(fpath2, 'rt', encoding='UTF-8') as x:
        for line2 in x:
            for word in line2.split(" "):
                if word.strip('\n'):
                    mylist2.append(word.strip())

    if mylist1==0 and mylist2==0:
        return None

    c=collections.Counter(mylist1)
    c.subtract(mylist2)
    return c

```