How to read from a written file? - python-3.x

Question

I need to use changed text document (from a function changed_document) in a function called lines. But I cannot just simply use the changed list or string. It shows me an error that "AttributeError: 'str' object has no attribute 'readlines'". So I've tried to write the changed text in to a new text file and then read it to use in the line function. But it doesn't work. I cannot read that newly written text file. It prints just empty lines.
def reading():
doc = open("C:/Users/s.txt", "r", encoding= 'utf-8')
docu = doc
return docu
def longest_word_place(document):
words = document.read().split()
i = 0
max = 0
max_place = 0
for i in range(len(words)):
if len(words[i]) > max:
max = len(words[i])
max_place = i
return max_place
def changed_document (document):
list = []
for line in document:
for symbol in line:
if symbol.isnumeric():
symbol = ' '
if symbol in "#,.;«\³][:¡|>^' '<?+=_-)(*&^%$£!`":
symbol = ' '
list.append(symbol)
document_changed =''.join([str(item) for item in list])
return document_changed
def lines(document):
lines = document.readlines()
max_word = ''
max_line = 0
for line_index, every_line in enumerate(lines, 1):
line_words = every_line.strip().split()
for each_word in line_words:
if len(each_word) > len(max_word):
max_word = each_word
max_line = line_index
print(f"{max_word = }, {max_line = }")
document = reading()
ch_dok = changed_document(document)
text_file = open("C:/Users/changed_doc.txt", "w+", encoding= 'utf-8')
text_file.write(ch_dok)
text_file.close
doc1 = open("C:/Users/changed_doc.txt", "r", encoding= 'utf-8')
for line1 in doc1:
print(line1)

Answer 1

In "text_file.close" you missed the parenthesis, so the file is not closed (just the function itself is returned, not called).
Perhaps this is the issue..?