Question 1: I need to write a program that prompts a user for a sentence, and (u

Question

Question 1: I need to write a program that prompts a user for a sentence, and (using a for loop and .append method) prints a LIST of each unique character, with no repeats and no punctuation. My code so far is not doing the trick:

mySentence = raw_input("Please input a sentence:")
myList = list(mySentence)
myList = sorted(myList)
print myList

alphStr = "abcdefghijklmnopqrstuvwxyz"
alphList = sorted(alphStr)

finalList = [ ]
for char in myList:
if char not in finalList:
finalList.append(myList)
print finalList

Question 2: How do I change this from a for loop to a while loop (it prints the number of a's in the string)

S = "I had a cat named amanda when I was little"
count = 0
for i in S:
if i == "a":
count += 1
print count

Thanks!

Explanation / Answer

you asked two questions.. rules only allow me answer one. here is the answer to the first
import string
s=raw_input("Enter a sentence ")
alplist=[]
for item in string.punctuation:
    s=s.replace(item,"")
s=s.split()

for word in s:
    for char in word:
        if not (char in alplist):
            alplist.append(char)

print sorted(alplist)

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