main.py

#!/usr/bin/env python3

# --- IMPORTS ---

import time

from selenium import webdriver
from selenium.common.exceptions import ElementClickInterceptedException
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.common.keys import Keys
from webdriver_manager.chrome import ChromeDriverManager

# --- CONSTANTS & GLOBALS ---

USER_ID = "rcarr72"
ACCOUNT_PASSWORD = "#3GyW%pt8Nmgn2UYiP4B*8CUn9YvzWDjKKFKuKi%"
ACC = "wutangclan"  # Account whose followers you want to follow.


class InstaFollower:

    def __init__(self):
        chr_options = Options()
        chr_options.add_experimental_option("detach", True)
        self.driver = webdriver.Chrome(
            service=Service(ChromeDriverManager().install()),
            options=chr_options)
        self.driver.get("https://www.instagram.com/")

    def login(self):
        user_field = self.driver.find_element(by="name", value="username")
        user_field.send_keys(USER_ID)
        password_field = self.driver.find_element(by="name", value="password")
        password_field.send_keys(ACCOUNT_PASSWORD)
        password_field.send_keys(Keys.ENTER)

    def find_followers(self):
        time.sleep(5)
        self.driver.get(f"https://www.instagram.com/{ACC}/")
        time.sleep(2)
        followers = self.driver.find_element(by="xpath",
                                             value='/html/body/div['
                                                   '2]/div/div/div/div['
                                                   '1]/div/div/div/div['
                                                   '1]/div[1]/div['
                                                   '2]/section/main/div'
                                                   '/header/section/ul/li['
                                                   '2]/a/div')
        followers.click()

        time.sleep(2)

    def follow(self):

        for i in range(2):  # Here adjust no. of followers you want to follow

            button = self.driver.find_element(by="css selector",
                                              value="._acas:not(._acao), "
                                                    "a._acas:not(._acao), "
                                                    "a._acas:not("
                                                    "._acao):visited")
            try:
                button.click()
                time.sleep(1)
            except ElementClickInterceptedException:
                cancel_button = self.driver.find_element(by="xpath",
                                                         value='/html/body'
                                                               '/div['
                                                               '5]/div/div'
                                                               '/div/div['
                                                               '3]/button[2]')
                cancel_button.click()


bot = InstaFollower()
time.sleep(3)
bot.login()
bot.find_followers()
bot.follow()