Output of Scrap Results

#https://review-of-my-life.blogspot.com/2017/10/python-web-scraping-data-collection-analysis.html Practice
# trendAnalytics.py
from selenium import webdriver  
from pandas import* 
import time

# Access to page
# WebDriver with PATH
browser=webdriver.PhantomJS(executable_path="/content/phantomjs-2.1.1-linux-x86_64/bin/phantomjs") #PhantomJS support seems to be over...?Should I use Headless Chrome...?
# Try https://qiita.com/orangain/items/db4594113c04e8801aad in the cell below.
# DO NOT FORGET to set path
url="http://b.hatena.ne.jp/search/text?safe=on&q=Python&users=50"
browser.get(url)
#!touch trend.csv
# df = pandas.read_csv('trend.csv') # Error Factors
df=pandas.DataFrame()# Reflects previous answers
# Insert title, date, bookmarks into CSV file

page=1#This number shows the number of current page later

while True: # continue until getting the last page
  iflen(browser.find_elements_by_css_selector(".pager-next"))>0:
    print("####################### page:{}#########################.format(page))
    print("Starting to get posts...")
    posts=browser.find_elements_by_css_selector(".search-result")# Retrieving something...

    for post in posts:
      title=post.find_element_by_css_selector("h3").text
      date=post.find_element_by_css_selector(".created").text
      bookmarks=post.find_element_by_css_selector(".usersspan").text
      se=pandas.Series ([title, date, bookmarks], ['title', 'date', 'bookmarks')
      df=df.append(se,ignore_index=True)
      print(df)

    # after getting all posts in a page, click pager next and then get next all posts again
    btn=browser.find_element_by_css_selector("a.pager-next").get_attribute("href")#The next page to retrieve posts looks like url.
    print("next url:{}.format(btn))
    browser.get(btn)#Go to the next page
    page+=1
    Like browser.implicitly_wait(10)#sleep()?
    print("Moving to next page...")
    time.sleep(10)#Do you need this...?

  else: # if no(next)pager exist, stop.
    print("no pager exist anymore")
    break
# while end of sentence

df.to_csv("trend1.csv")
print ("DONE")

/usr/local/lib/python 3.6/dist-packages/selenium/webdriver/phantomjs/webdriver.py:49: UserWarning: Selenium support for PhantomJS has been deprecated, please use headless versions of Chrome or Firefox installation
  warnings.warn('Selenium support for PhantomJS has been deprecated, please use headless'
no pager exist anymore
DONE