gh-111181: Fix enum doctests

Doc/howto/enum.rst

@@ -483,6 +483,7 @@ Dataclass support
 When inheriting from a :class:`~dataclasses.dataclass`,
 the :meth:`~Enum.__repr__` omits the inherited class' name.  For example::
 
+    >>> from dataclasses import dataclass, field
     >>> @dataclass
     ... class CreatureDataMixin:
     ...     size: str
@@ -527,7 +528,8 @@ It is possible to modify how enum members are pickled/unpickled by defining
 :meth:`__reduce_ex__` in the enumeration class.  The default method is by-value,
 but enums with complicated values may want to use by-name::
 
-    >>> class MyEnum(Enum):
+    >>> import enum
+    >>> class MyEnum(enum.Enum):
     ...     __reduce_ex__ = enum.pickle_by_enum_name
 
 .. note::
@@ -771,7 +773,7 @@ be combined with them (but may lose :class:`IntFlag` membership::
     <Perm.R|X: 5>
 
     >>> Perm.X | 8
-    9
+    <Perm.X|8: 9>
 
 .. note::
 
@@ -1435,8 +1437,9 @@ alias::
     ...     GRENE = 2
     ...
     Traceback (most recent call last):
-    ...
+      ...
     ValueError: aliases not allowed in DuplicateFreeEnum:  'GRENE' --> 'GREEN'
+    Error calling __set_name__ on '_proto_member' instance 'GRENE' in 'Color'
 
 .. note::
 

Doc/library/enum.rst

@@ -299,7 +299,7 @@ Data Types
          ...         print('today is %s' % cls(date.today().isoweekday()).name)
          ...
          >>> dir(Weekday.SATURDAY)
-         ['__class__', '__doc__', '__eq__', '__hash__', '__module__', 'name', 'today', 'value']
+         ['FRIDAY', 'MONDAY', 'SATURDAY', 'SUNDAY', 'THURSDAY', 'TUESDAY', 'WEDNESDAY', '__class__', '__doc__', '__eq__', '__hash__', '__module__', 'name', 'today', 'value']
 
    .. method:: Enum._generate_next_value_(name, start, count, last_values)
 

Lib/test/test_enum.py

@@ -18,22 +18,27 @@
 from io import StringIO
 from pickle import dumps, loads, PicklingError, HIGHEST_PROTOCOL
 from test import support
-from test.support import ALWAYS_EQ
+from test.support import ALWAYS_EQ, REPO_ROOT
 from test.support import threading_helper
 from datetime import timedelta
 
 python_version = sys.version_info[:2]
 
 def load_tests(loader, tests, ignore):
     tests.addTests(doctest.DocTestSuite(enum))
-    if os.path.exists('Doc/library/enum.rst'):
+
+    lib_tests = os.path.join(REPO_ROOT, 'Doc/library/enum.rst')
+    if os.path.exists(lib_tests):
         tests.addTests(doctest.DocFileSuite(
-                '../../Doc/library/enum.rst',
+                lib_tests,
+                module_relative=False,
                 optionflags=doctest.ELLIPSIS|doctest.NORMALIZE_WHITESPACE,
                 ))
-    if os.path.exists('Doc/howto/enum.rst'):
+    howto_tests = os.path.join(REPO_ROOT, 'Doc/howto/enum.rst')
+    if os.path.exists(howto_tests):
         tests.addTests(doctest.DocFileSuite(
-                '../../Doc/howto/enum.rst',
+                howto_tests,
+                module_relative=False,
                 optionflags=doctest.ELLIPSIS|doctest.NORMALIZE_WHITESPACE,
                 ))
     return tests