JRBRO

cmd = ['python3', 'subprocess.py', 'E:', '-vq']
my_process = Popen(cmd, start_new_session=False) 
my_process.wait(5)

with open('numbers.txt', 'a') as f:
                        w = csv.writer(f)
                        w.writerow([iy, y, ix, x])

import datetime

def trunc_datetime(someDate):
    return someDate.replace(day=1, hour=0, minute=0, second=0, microsecond=0)

a = trunc_datetime(datetime.datetime(2018,2,15))
b = trunc_datetime(datetime.datetime(2018,3,20))

print(a <= b)

{% for x, y in sub|zip(main) %}
      <p>{{ x }}</p>
      <p>{{ y }}</p>

{% endfor %}

from selenium.webdriver.common.keys import Keys
html = driver.find_element_by_tag_name('html')
html.send_keys(Keys.END)

from multiprocessing import Process

def bot(token):
    print(token)

if __name__ == '__main__':
    p1 = Process(target=bot, args=('token1',))
    p2 = Process(target=bot, args=('token2',))
    p1.start()
    p2.start()
    p1.join()
    p2.join()