Since abc._Abstract was replaces by a new type flags the regression test suite fails. I've added a new function inspect.isabstract(). Is the mmethod fine or should I check if object is a instance of type or subclass of object, too?
diff --git a/Lib/inspect.py b/Lib/inspect.py
index 42f2c31..3f9199f 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -38,11 +38,15 @@
import imp
import tokenize
import linecache
+from abc import ABCMeta
from operator import attrgetter
from collections import namedtuple
from compiler.consts import (CO_OPTIMIZED, CO_NEWLOCALS, CO_VARARGS,
CO_VARKEYWORDS, CO_GENERATOR)
+# See Include/object.h
+TPFLAGS_IS_ABSTRACT = 1 << 20
+
# ----------------------------------------------------------- type-checking
def ismodule(object):
"""Return true if the object is a module.
@@ -241,6 +245,10 @@
"""Return true if the object is a generator object."""
return isinstance(object, types.GeneratorType)
+def isabstract(object):
+ """Return true if the object is an abstract base class (ABC)."""
+ return object.__flags__ & TPFLAGS_IS_ABSTRACT
+
def getmembers(object, predicate=None):
"""Return all members of an object as (name, value) pairs sorted by name.
Optionally, only return members that satisfy a given predicate."""