Issue #17041: Fix doctesting when Python is configured with the

--without-doc-strings.

Lib/test/test_generators.py

@@ -383,7 +383,8 @@ From the Iterators list, about the types of these things.
 <type 'generator'>
 >>> [s for s in dir(i) if not s.startswith('_')]
 ['close', 'gi_code', 'gi_frame', 'gi_running', 'next', 'send', 'throw']
->>> print i.next.__doc__
+>>> from test.test_support import HAVE_DOCSTRINGS
+>>> print(i.next.__doc__ if HAVE_DOCSTRINGS else 'x.next() -> the next value, or raise StopIteration')
 x.next() -> the next value, or raise StopIteration
 >>> iter(i) is i
 True

Lib/test/test_genexps.py

@@ -223,7 +223,8 @@ Check that generator attributes are present
     >>> set(attr for attr in dir(g) if not attr.startswith('__')) >= expected
     True
 
-    >>> print g.next.__doc__
+    >>> from test.test_support import HAVE_DOCSTRINGS
+    >>> print(g.next.__doc__ if HAVE_DOCSTRINGS else 'x.next() -> the next value, or raise StopIteration')
     x.next() -> the next value, or raise StopIteration
     >>> import types
     >>> isinstance(g, types.GeneratorType)