text: """Verify that warnings are issued for global statements following use."""
  
  from test.test_support import check_syntax
  
  import warnings
  
  warnings.filterwarnings("error", module="<test code>")
  
  def compile_and_check(text, should_fail=1):
      try:
          compile(text, "<test code>", "exec")
      except SyntaxError, msg:
          if should_fail:
              print "got SyntaxError as expected"
          else:
              print "raised unexpected SyntaxError:", text
      else:
          if should_fail:
              print "should have raised SyntaxError:", text
          else:
              print "as expected, no SyntaxError"
  
  prog_text_1 = """
  def wrong1():
      a = 1
      b = 2
      global a
      global b
  """
  compile_and_check(prog_text_1)
  
  prog_text_2 = """
  def wrong2():
      print x
      global x
  """
  compile_and_check(prog_text_2)
  
  prog_text_3 = """
  def wrong3():
      print x
      x = 2
      global x
  """
  compile_and_check(prog_text_3)
  
  prog_text_4 = """
  global x
  x = 2
  """
  compile_and_check(prog_text_4, 0)
  