title: Timer without threading in python?
body: <p>I am new to programming and would like to add a counter that deducts 1 from your score every two seconds. (so that I have to answer quickly to make my score increase)</p>
  
  <pre><code>chr
  import random
  import time
  radians2 = None
  ans = None
  score = 0
  
  radians1 = ['0', 'π/6', 'π/3', 'π/4', 'π/2', '2π/3', '3π/4', '5π/6', 'π', '7π/6', '4π/3', '5π/4', '3π/2', '5π/3', '7π/4', '11π/6', '2π']
  while radians2 == ans or ans == None:
  
  radians3 = (random.choice(radians1))
  ans = input(radians3)
  if radians3 == '0':
      radians2 = 0
  
  elif radians3 == 'π/6':
      radians2 = 30
  
  elif radians3 == 'π/3':
      radians2 = 60
  
  elif radians3 == 'π/4':
      radians2 = 45
  
  elif radians3 == 'π/2':
      radians2 = 90
  
  elif radians3 == '2π/3':
      radians2 = 120
  
  elif radians3 == '3π/4':
      radians2 = 135
  
  elif radians3 == '5π/6':
      radians2 = 150
  
  elif radians3 == 'π':
      radians2 = 180
  
  elif radians3 == '7π/6':
      radians2 = 210
  
  elif radians3 == '4π/3':
      radians2 = 240
  
  elif radians3 == '5π/4':
      radians2 = 225
  
  elif radians3 == '3π/2':
      radians2 = 270
  
  elif radians3 == '5π/3':
      radians2 = 300
  
  elif radians3 == '7π/4':
      radians2 = 315
  
  elif radians3 == '11π/6':
      radians2 = 330
  
  elif radians3 == '2π':
      radians2 = 360
  score = score + 1
  
  if radians2 == ans:
      print('Correct!')
      print "You've got %d in a row" % score
  print "You lose, the correct answer was %d" % radians2
  </code></pre>
  
  <p>Sorry if the code is messy/long
  I figured out that I want to basically run something like:</p>
  
  <pre><code>while 1:
       time.sleep(2)
       score = score - 1
  </code></pre>
  
  <p>The only problem is that won't run simultaneously with the rest of the program, and threading (which is what seems to be the alternative) is very confusing to me.  </p>