Python script to semi-automate tatkal ticket booking.

irctc.py

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import Select, WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from time import sleep, strftime

def waituntil(s):
    while strftime('%H:%M:%S') < s:
        print strftime('%H:%M:%S')
        sleep(1)

def login():
    driver.get('https://www.irctc.co.in/eticketing/loginHome.jsf')
    WebDriverWait(driver, 60).until(
        EC.presence_of_element_located((By.NAME, 'j_username'))
        ).send_keys(IRCTC_USERNAME)
    driver.find_element_by_name('j_password').send_keys(IRCTC_PASSWORD)
    driver.find_element_by_name('j_captcha').send_keys('')

def planjourney():
    WebDriverWait(driver, 60).until(
        EC.presence_of_element_located((By.ID, 'jpform:fromStation'))
        ).send_keys(FROM_STATION)
    driver.find_element_by_id('jpform:toStation').send_keys(TO_STATION)
    driver.find_element_by_id('jpform:journeyDateInputDate').send_keys(DATE)
    waituntil('09:59:50')
    driver.find_element_by_id('jpform:jpsubmit').click()
    WebDriverWait(driver, 60).until(
        EC.presence_of_all_elements_located((By.NAME, 'quota'))
        )[-1].click()
    driver.find_element_by_id('cllink-%s-%s-%s' % (TRAIN_NO, CLASS, CLASS_INDEX)).click()
    # WebDriverWait(driver, 60).until(
    #     EC.presence_of_all_elements_located((By.ID, '%s-%s-CK-0' % (TRAIN_NO, CLASS)))
    #     )[-1].click()

def filldetails():
    WebDriverWait(driver, 60).until(EC.title_contains('Book Ticket'))
    for name, el in zip(NAMES, driver.find_elements_by_class_name('psgn-name')):
        el.send_keys(name)
    for age, el in zip(AGES, driver.find_elements_by_class_name('psgn-age')):
        el.send_keys(age)
    for gender, el in zip(GENDERS, driver.find_elements_by_class_name('psgn-gender')):
        Select(el).select_by_value(gender)
    for berth, el in zip(BERTHS, driver.find_elements_by_class_name('psgn-berth-choice')):
        Select(el).select_by_value(berth)
    driver.find_element_by_id('addPassengerForm:autoUpgrade').click()
    driver.find_element_by_id('addPassengerForm:onlyConfirmBerths').click()

def sbi():
    WebDriverWait(driver, 60).until(
        EC.presence_of_all_elements_located((By.ID, 'PREFERRED'))
        )[-1].click()
    driver.find_element_by_id('validate').click()
    WebDriverWait(driver, 60).until(
        EC.presence_of_element_located((By.ID, 'username'))
        ).send_keys(SBI_USERNAME)
    driver.find_element_by_id('label2').send_keys(SBI_PASSWORD)
    driver.find_element_by_id('Button2').click()


IRCTC_USERNAME = 'IRCTC_USERNAME'
IRCTC_PASSWORD = 'IRCTC_PASSWORD'
FROM_STATION = 'VIJAYAWADA JN - BZA'
FROM_STATION_CODE = 'BZA'
TO_STATION = 'ASANSOL JN - ASN'
TO_STATION_CODE = 'ASN'
DATE = '02-01-2016'
TRAIN_NO = '12551'
CLASS = '3A'
CLASS_INDEX = '2'
NAMES = ['NAME 1', 'NAME 2', 'NAME 3']
AGES = ['18', '24', '32']
GENDERS = ['M', 'M', 'M']
BERTHS = ['LB', 'LB', 'MB']
SBI_USERNAME = 'SBI_USERNAME'
SBI_PASSWORD = 'SBI_PASSWORD'

if __name__ == '__main__':
    profile = webdriver.FirefoxProfile()
    profile.set_preference('webdriver.load.strategy', 'unstable')
    waituntil('09:59:00')
    driver = webdriver.Firefox(profile)
    login()
    planjourney()
    filldetails()
    sbi()

after line 31 'book now' option should be selected ,but it's not going on

in the line 9 it is showing error

In line no. 9 should be code as:
print.strftime('%H:%M:%S')

Note that this gist is almost 5 years old -- while it was more or less working at the time, with then IRCTC website and a Python 2 interpreter, I haven't used it in a long time and have no idea if it still works with whatever changes IRCTC must have made over these years (would probably be trivial to update though).

How about updating the script?