Error using MeCab TypeError: in method 'Tagger_parse', argument 2 of type 'char const *'

import urlib
from urllib.request import urlopen
import MeCab
import re

# slothlib
slotlib_path="http://svn.sourceforge.jp/svnroot/slothlib/CSharp/Version1/SlothLib/NLP/Filter/StopWord/word/Japanese.txt"
slot_file=urlib.request.urlopen(slothlib_path)

# stopwordsiso
iso_path="https://raw.githubusercontent.com/stopwords-iso/stopwords-ja/master/stopwords-ja.txt"
iso_file=urllib.request.urlopen(iso_path)
stopwords = [ line.decode("utf-8").trip() for line iniso_file ]

stopwords = [ss for ss in stopwords if not ss == u' ]
stopwords=list(set(stopwords))

with open("/Desktop/cleaned-stp.txt", encoding='utf8') asf:
    cleanedlist=f.readlines()
    cleanedlist=list(cleanedlist)

tagger=MeCab.Tagger("-Owakati")
token_text=tagger.parse(cleanedlist)

ws = re.compile("")
words = [word for words in ws.split(tok_text)]
if words[-1]==u"\n":
    words = words [:-1]
ws = [w for words if w not in stopwords ]

print(words)
print(ws)

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