1. 2018-03-27 00:56:56 [scrapy.core.engine] DEBUG: Crawled (200) <POST
   https://www.bank.org/signin-page.html> (referer:
   https://www.bank.org/signin-page.html)
2. 2018-03-27 00:56:56 [LOG] INFO: LOGIN ATTEMPT SUCCESSFUL
3. 2018-03-27 00:56:56 [scrapy.core.engine] DEBUG: Crawled (404) <GET
   https://www.bankonline.org/robots.txt> (referer: None)
4. 2018-03-27 00:56:56 [scrapy.downloadermiddlewares.redirect] DEBUG:
   Redirecting (302) to <GET https://www.bankonline.org/tob/live/usp-
   core/app/logout?reason=logout> from <GET
   https://www.bankonline.org/tob/live/usp-core/app/home>
5. 2018-03-27 00:56:56 [scrapy.core.engine] DEBUG: Crawled (200) <GET
   https://www.bankonline.org/tob/live/usp-core/app/logout?
   reason=logout> (referer: https://www.bank.org/signin-page.html)
6. 2018-03-27 00:56:56 [LOG] INFO: VISITED
   https://www.bankonline.org/tob/live/usp-core/app/logout?
   reason=logout
7. 2018-03-27 00:56:57 [scrapy.core.engine] INFO: Closing spider
   (finished)

import scrapy
import logging

logger = logging.getLogger('LOG')
USERNAME = 'user'
PASSWORD = 'pass'

class Budget_Bank(scrapy.Spider):
    name = "Budget_Bank"
    login_url = 'https://www.bank.org/signin-page.html'
    start_urls = ['https://www.bank.org/signin-page.html']

    def parse(self, response):
        yield scrapy.FormRequest(url=self.login_url,
                                 formdata={'username': USERNAME,
                                           'password': PASSWORD},
                                 callback=self.login_test)


    def login_test(self, response):
        if 'errors' in response.text:
            logger.warning("LOGIN ATTEMPT FAILED")
            return
        else:
            logger.info("LOGIN ATTEMPT SUCCESSFUL")
            yield scrapy.Request('https://www.bankonline.org'
                                 '/tob/live/usp-core/app/home',
                                 callback=self.parse_number)


    def parse_number(self, response):
        logger.info("VISITED %s", response.url)
        for number in response.css('div._1qtcLoK1d4PZmeghcgyE2K'):
            yield {
                'num': number.css('span.formattedMoney_balanceBZozG-'
                                  ...::text').extract_first(),
            }