code: def get_module_constant(module, symbol, default=-1, paths=None):
      
  
      try:
          f, path, (suffix, mode, kind) = find_module(module, paths)
      except ImportError:
          # Module doesn't exist
          return None
  
      try:
          if kind == PY_COMPILED:
              f.read(8)  # skip magic & date
              code = marshal.load(f)
          elif kind == PY_FROZEN:
              code = imp.get_frozen_object(module)
          elif kind == PY_SOURCE:
              code = compile(f.read(), path, 'exec')
          else:
              # Not something we can parse; we'll have to import it.  :(
              if module not in sys.modules:
                  imp.load_module(module, f, path, (suffix, mode, kind))
              return getattr(sys.modules[module], symbol, None)
  
      finally:
          if f:
              f.close()
  
      return extract_constant(code, symbol, default)
docs: Find 'module' by searching 'paths', and extract 'symbol'
  
      Return 'None' if 'module' does not exist on 'paths', or it does not define
      'symbol'.  If the module defines 'symbol' as a constant, return the
      constant.  Otherwise, return 'default'.