I need to write a program where I have a list of names of counties and I need to find how many of each of the 5 vowels is in that list and put the 5 numbers in a dictionary. 

I wanted to make a for-loop to go through each vowel, and each time it goes through the loop, add a new entry in a dictionary, with the vowel as the key and the count as the value. 

It should print: `{'a':4, 'e':4, 'i':4, 'o':4, 'u':4}`. I don't know how many of the vowels there are so I just wrote 4 for all the values in the example. 
The list of counties is really long so I just pasted a shortened version here.

```
counties = ['Autauga','Baldwin','Barbour','Bibb','Blount','Bullock','Butler','Calhoun','Chambers','Cherokee','Chilton','Choctaw','Clarke','Clay','Cleburne','Coffee','Colbert','Conecuh','Coosa','Covington','Crenshaw','Cullman','Dale','Dallas']

letter = ('a', 'e', 'i', 'o', 'u') 

counter = 0 

d={} 

for it in clist:
    def func(clist, letterlist, count): 
        count += clist.count(letterlist)
        print("the number of vowels:" count) 
        return count 

    func(counties, letter, counter)

```

As you can see, I am very new to Python and have no idea what I am doing. I can't get it to work and definitely can't get it in a dictionary.

Any help would be appreciated!