Instagram scraper

import bs4, requests
import os
import selenium.webdriver as webdriver
import time
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.action_chains import ActionChains

def checkAmount():
    data = input("Around how many Pictures do u want? e.g: 25,50,100,150,...(Minimum is 25!)")
    try:
        number = int(data)
    except ValueError:
        print("U need to enter a number!")
        return checkAmount()
    if number < 25:
        print("U need to enter a number greater or equal to 25!")
        return checkAmount()
    else:
        picAmount = round((number - 25) / 12)
        return picAmount

def welcomeMessage():
    print("This program requires firefox and is going to open the browser during the downloading progress.\nPlease do not close it.\n\nAuthor: .. 2016")
    time.sleep(5)
    os.system('cls')

def displayUserInfo(soup):
    messages = soup.select('._e8fkl')
    followers = soup.select('._pr3wx')
    following = soup.select('._bgvpv')
    if not messages:
        print('\nUser does not exist!')
        time.sleep(2)
        main()
    else:
        messagesValue = messages[0].string
        followersValue = followers[0].string
        followingValue = following[0].string
        print("\nUserinfo:\nMessages: " + messagesValue + "    Followers: " + followersValue + "    Following: " + followingValue + "\n")

def askUser():
    user = input("Please insert the username of the user u want to download from: ")
    if user == "":
        user = "programmers_life"
        print("No input detected, default user will be used.")

    url = 'https://www.instagram.com/' + user + '/' # default url
    return url

def nameFolder(state):
    while state == False:
        folder = input("Name of folder u want to download them to?")
        state = True
        if folder == "":
            folder = "Instagram"
        if os.path.isdir(folder):
            print('Folder exists already!')
            decision = input("Do u want to overwrite the images in this folder? yes or no    ").lower()
            if decision == "yes":
                state = True
            else:
                state = False
        if state == True:
            os.makedirs(folder, exist_ok=True)
            return folder

def mostLikedPicture(soup, driver):
    pictureElem = soup.select('img')

    ActionChains(driver).move_to_element(pictureElem[1])

    time.sleep(8)

def main():
    #WelcomeMessage
    welcomeMessage()

    #Url Input
    url = askUser()

    #Amount Input
    picAmount = checkAmount()

    #Name of folder
    state = False
    folder = nameFolder(state)

    # Download the page.
    print('Downloading images from %s...' % url)
    driver = webdriver.Firefox()
    driver.maximize_window()
    driver.get(url)




    #Click Load More
    try:
        linkElem = driver.find_element_by_class_name('_oidfu')
        linkElem.click()
    except NoSuchElementException:
        print("User has less than 25 photo\'s or is private\n")



    #Scroll
    i = 0
    while i < picAmount:
        driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")
        time.sleep(1)
        i += 1

    #Put in html
    soup = bs4.BeautifulSoup(driver.page_source, "html.parser")
    mostLikedPicture(soup, driver)
    driver.quit()
    #UserInfo
   # displayUserInfo(soup)

    # Find the URL of image.
    pictureElem = soup.select('img')
    if pictureElem == []:
        print('Could not find any instagram image.')
    else:
        for i in range(len(pictureElem)):
                pictureUrl = pictureElem[i].get('src')
                # Download the image.
                print('Downloading image number: ' + str(i+1))
                res = requests.get(pictureUrl)
                res.raise_for_status()

                # Save the image
                imageFile = open(os.path.join(folder, os.path.basename(str(i+1)) + ".jpg"), 'wb')
                for chunk in res.iter_content(100000):
                    imageFile.write(chunk)
                imageFile.close()
    print('\nAll images downloaded.\n')

if __name__ == "__main__":
    main()