AttributeError: 'Response' object has no attribute 'replace'

[Truman]

#! python3
# using the inauguration speech of William Henry Harrison analyzed in the previous example, we can write the following code that generates arbitrarily # long Markov chains (with the chain length set to 100) based on the #structure of its text

import requests
from random import randint


def wordListSum(wordList):
    sum = 0
    for word, value in wordList.items():
        sum += value
    return sum


def retrieveRandomWord(wordList):
    randIndex = randint(1, wordListSum(wordList))
    for word, value in wordList.items():
        randIndex -= value
        if randIndex <= 0:
            return word


def buildWordDict(text):
    # Remove newlines and quotes
    text = text.replace("\n", " ")
    text = text.replace('"', "")
    # Make sure punctuation marks are treated as their own "words"
    # so that they will be included in the Markov chain
    punctuation = [",", ".", ";", ":"]
    for symbol in punctuation:
        text = text.replace(symbol, " " + symbol + " ")
    words = text.split(" ")
    # Filter out empty words
    words = [word for word in words if word != ""]
    wordDict = {}
    for i in range(1, len(words)):
        if words[i - 1] not in wordDict:
            # Create a new dictionary for this word
            wordDict[words[i - 1]] = {}
        if words[i] not in wordDict[words[i - 1]]:
            wordDict[words[i - 1]][words[i]] = 0
        wordDict[words[i - 1]][words[i]] += 1
    return wordDict


text = requests.get("http://pythonscraping.com/files/inaugurationSpeech.txt")
if text.status_code == 200:
    content = text.text
wordDict = buildWordDict(text)


# Generate a Markov chain of length 100
length = 100
chain = ""
currentWord = "I"
for i in range(0, length):
    chain += currentWord + " "
    currentWord = retrieveRandomWord(wordDict[currentWord])

print(chain)

Error:
Traceback (most recent call last):
  File "C:\Python36\kodovi\markov.py", line 49, in <module>
    wordDict = buildWordDict(text)
  File "C:\Python36\kodovi\markov.py", line 25, in buildWordDict
    text = text.replace("\n", " ")
AttributeError: 'Response' object has no attribute 'replace'
>>>

There is a replace method in the documentation, does this message means that there is not attribute new line?
And what is wrong with the line 49?