[Python] Wait until condition is met

I am pretty new to Python. I have some code using Thread which should stop until a condition is met.

When I press key 1 in the console the script just stops instead of running the part under the condition test1 == 1:.

When the condition is met, I want to run the script only 1 time per Thread with the existing sessions.


Code:

def test()

#some code
test1 = 0

while (test1 == 1): #Wait until is set 1 in if __name__ == '__main__': and run the code only 1 time
response = session.get('https://www.example.com/')


opts = ChromeOptions()
opts.add_experimental_option("detach", True)
driver = Chrome(chrome_options=opts)

driver.get(response.url + '#/checkout/login')
print "Checking Out..."
test1+=1

def Main():
t1 = Thread(target=test, args=())
t1.start()


if __name__ == '__main__':
test = input('How many tasks you want to start? \n')
for i in range(test):
Main()
test1 = input('Proceed? if yes press 1 \n')

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