AttributeError: module 'sys' has no attribute 'setdefaultencoding'

My original code is this.

#py3.6, windows10   
import time
from selenium import webdriver
import codecs
import sys

reload(sys)
sys.setdefaultencoding('utf-8')

Reload is not supported. It was fixed.

Import importlib
Importlib.reload (sys)

But there was also an error.

AttributeError: module 'sys' has no attribute 'setdefaultencoding'

How should I fix this? I would appreciate your help.

I also attach my entire code.

import time
from selenium import webdriver
import codecs
import sys

reload(sys)
sys.setdefaultencoding('utf-8')

browser = webdriver.PhantomJS('C:\phantomjs-2.1.1-windows/bin/phantomjs')
url = u'https://twitter.com/search?f=tweets&vertical=default&q=%EB%B0%B0%EA%B3%A0%ED%8C%8C%20since%3A2017-07-19%20until%3A2017-07-20&l=ko&src=typd&lang=ko'

browser.get(url)
time.sleep(1)

body = browser.find_element_by_tag_name('body')
browser.execute_script("window.scrollTo(0,document.body.scrollHeight);")

start = time.time()
for _ in range(500):
    now = time.time()
    browser.execute_script("window.scrollTo(0, 
    document.body.scrollHeight);")
    print str(_) + "    seconds: " + str(now - start) 
    time.sleep(0.2)

tweets=browser.find_elements_by_class_name('tweet-text')

with codecs.open("test.txt", "w","utf-8") as f:
    i = 1
    for i, tweet in enumerate(tweets):
        data = tweet.text
        data = data.encode('utf-8')
        print i, ":", data
        msg = (str(data) +'\n')
        f.write(msg)
        i += 1

end = time.time()
print(end - start)
browser.quit()