isalpha(): raise ValueError("Text must be ASCII and contain no numbers.") lowercase = string.ascii_lowercase uppercase = string.ascii_uppercase result = "" if decrypt: shift = shift * -1 for char in text: if char.islower(): index = lowercase.index(char) result += lowercase[(index ...
Python >>>matrix=[...[0,0,0],...[1,1,1],...[2,2,2],...]>>>flat=[]>>>forrowinmatrix:...fornumberinrow:...flat.append(number)...>>>flat[0, 0, 0, 1, 1, 1, 2, 2, 2] Now you can see that the code traverses one row of the matrix at a time, pulling out ...
The real test comes when you input text of your own into the model and see how it performs — that is, how adept it is at quantifying the sentiment expressed in that text. In this unit, you'll write a Python function that accepts a text string as input, passes...
isalpha()] # make lower case tokens = [word.lower() for word in tokens] return tokens We can run this cleaning operation on our loaded document and print out some of the tokens and statistics as a sanity check. 1 2 3 4 5 # clean document tokens = clean_doc(doc) print(tokens[:...