old_contents: #!/usr/bin/python
  #
  # File:  mitx/lib/loncapa/loncapa_check.py
  #
  # Python functions which duplicate the standard comparison functions available to LON-CAPA problems.
  # Used in translating LON-CAPA problems to i4x problem specification language.
  
  import random
  
  def lc_random(lower,upper,stepsize):
      '''
      like random.randrange but lower and upper can be non-integer
      '''
      nstep = int((upper-lower)/(1.0*stepsize))
      choices = [lower+x*stepsize for x in range(nstep)]
      return random.choice(choices)
  
  
new_contents: #!/usr/bin/python
  #
  # File:  mitx/lib/loncapa/loncapa_check.py
  #
  # Python functions which duplicate the standard comparison functions available to LON-CAPA problems.
  # Used in translating LON-CAPA problems to i4x problem specification language.
  
  from __future__ import division
  import random
  import math
  
  def lc_random(lower,upper,stepsize):
      '''
      like random.randrange but lower and upper can be non-integer
      '''
      nstep = int((upper-lower)/(1.0*stepsize))
      choices = [lower+x*stepsize for x in range(nstep)]
      return random.choice(choices)
  
  def lc_choose(index,*args):
      '''
      return args[index]
      '''
      try:
          return args[int(index)-1]
      except Exception,err:
          pass
      if len(args):
          return args[0]
      raise Exception,"loncapa_check.lc_choose error, index=%s, args=%s" % (index,args)
  
  deg2rad = 180.0*math.pi
  rad2deg = math.pi * 180
  
  
  
subject: add more loncapa check functions (choose, rad2deg, deg2rad)