Getting Index Error - list index out of range

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Getting Index Error - list index out of range - RahulSingh - Feb-03-2020

Hi,
I am new to Python and doing a web scraping project and trying to web scrape the data from restaurant aggregator site (https://www.zomato.com/mumbai) using Jupyter notebook and want to scrape different types of restaurants from each neighborhood in the city but I am getting IndexError: list index out of range -->buttons[0].click().

Below is my code.

import pandas as pd
!pip install -U selenium
import requests
from bs4 import BeautifulSoup
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.keys import Keys
import time
chrome_path = r'C:\Users\Klsingh\Desktop\chromedriver.exe'

# Url for each neighborhood
url = 'https://www.zomato.com/mumbai/lower-parel-restaurants' 
# neighborhood
city = "lower_parel_"
wd = webdriver.Chrome(executable_path=r'C:\Users\Klsingh\Desktop\chromedriver.exe')
wd.get(url)
rest_types = wd.find_element_by_xpath('//div[@class="search-filter-label pb5"]')
rest_types = rest_types.text.split("\n")
print(rest_types)
wd.quit()
# This function returns all the buttons for navigating each category
def rest_types_buttons():
    buttons = wd.find_elements_by_xpath('//span[@class="zred"]')
    return buttons
# This function returns the link, name and address of restaurant for each page
def name_link_add():
    rest_link = []
    rest_name = []
    restaurants = wd.find_elements_by_xpath('//a[@class="result-title hover_feedback zred bold ln24   fontsize0 "]')
    for name in restaurants:
        rest_link.append(name.get_attribute('href'))
        rest_name.append(name.text)
    restaurants_address =  wd.find_elements_by_xpath('//div[@class="col-m-16 search-result-address grey-text nowrap ln22"]')
    rest_address = []
    for rest_add in restaurants_address:
        rest_address.append(rest_add.text)
    return rest_link, rest_name, rest_address
# This function returns the all the data from an individual category (all pages combined)
def get_data_rest_type(rest_type):
    try:
        prev_link,prev_name,prev_add = None, None, None
        rest_link, rest_name, rest_address = name_link_add()
        link = []
        name = []
        address = []
        while(prev_link != rest_link):
            prev_link,prev_name,prev_add = rest_link, rest_name, rest_address
            link = link + prev_link
            name = name + prev_name
            address = address + prev_add
            next_page_button = wd.find_element_by_xpath('//i[@class="right angle icon"]')
            next_page_button.click()
            wd.switch_to_window(wd.window_handles[0])
            rest_link, rest_name, rest_address = name_link_add()
            # Below two if conditions are for debugging
            if((len(rest_address) == len(rest_link) == len(rest_name)) == False):
                print("need to see, name link address mismatch")
                break
            if(len(rest_name) == 0):
                print("Empty found")
    except:
        print("unknown error")
    return link, name, address
# For each of the category
type_ = ("_".join(rest_types[0].lower().split(' ')))
print(type_)
# Go inside the category by clicking on the button on the main page
wd = webdriver.Chrome(chrome_path)
wd.get(url)
wd.switch_to_window(wd.window_handles[0])
buttons = rest_types_buttons()
buttons[0].click()
wd.switch_to_window(wd.window_handles[0])

This portion of the code

Quote:# Go inside the category by clicking on the button on the main page

is giving me Index error as mentioned below.

Error:C:\Users\Klsingh\Anaconda3\lib\site-packages\ipykernel_launcher.py:4: DeprecationWarning: use driver.switch_to.window instead
  after removing the cwd from sys.path.
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-12-422a6bba8955> in <module>
      4 wd.switch_to_window(wd.window_handles[0])
      5 button = rest_types_button()
----> 6 button[0].click()
      7 driver.switch_to_window(wd.window_handles[0])

IndexError: list index out of range

Please help.
Thank you all in advance.

RE: Getting Index Error - list index out of range - michael1789 - Feb-03-2020

Is it possible that

def rest_types_buttons():
    buttons = wd.find_elements_by_xpath('//span[@class="zred"]')
    return buttons

indexes from 1 and not 0? If that is the case then in button[0].click() the 0 would be out of range. Try changing it to a 1 and see what happens. That's my best guess.

RE: Getting Index Error - list index out of range - RahulSingh - Feb-03-2020

Still I am getting below error after changing from 0 to 1.

Error:C:\Users\Klsingh\Anaconda3\lib\site-packages\ipykernel_launcher.py:4: DeprecationWarning: use driver.switch_to.window instead
  after removing the cwd from sys.path.
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-22-8eb1449d4630> in <module>
      4 wd.switch_to_window(wd.window_handles[0])
      5 buttons = rest_types_buttons()
----> 6 buttons[1].click()
      7 driver.switch_to_window(wd.window_handles[0])

IndexError: list index out of range