text: import empty_module
  import math
  
  x = repr(empty_module)
  
  # cpython will simplify the path (remove . and ..), and use the pyc file in the repr string. Pyston still doesn't support that, so we are only checking the non-path part.
  
  print x[0:29]
  print x[-2:]
  
  # cpython 2.7.5 writes "from '/usr/lib64/python2.7/lib-dynload/math.so'"
  # pyston writes "(built-in)"
  print repr(math)[0:15] + "(built-in)>"
  