Answer 1

Sorry, we should not share a complete code from code coach. What i have done for you is a sample how to remove all punctuations. I think the rest of your code is ok.

from string import punctuation

sentence = "!&)this phrase has multiple words..." # this could be an input
print(sentence) # for test only
for i in punctuation: # this for loop will remove all punctuations from the string
sentence = sentence.replace(i,'')
print(sentence) # for test only
# continue with oyur code here...

Answer 2

With the phrase from the task description the result will be 5.2 letters in average. If you now use round() you get a result of 5. But the task description says, the result should be ROUNDED UP to the nearest whole number. So you have to use a ceil() rounding...

Answer 3

If first test is not passing, it should show you the result from your code and the expected code.

Answer 4

There is an other hint in the task description that says, that all punctuation has to be removed from the string. to check agianst punctuation you can import string.punctuation

Answer 5

May be you can show us the official task description, so that we can get a clear view on it? Thanks.