+if os.environ.get('SCONS_HORRIBLE_REGRESSION_TEST_HACK') is not None:
+ # We can't apply the 'callable' fixer until the floor is 2.6, but the
+ # '-3' option to Python 2.6 and 2.7 generates almost ten thousand
+ # warnings. This hack allows us to run regression tests with the '-3'
+ # option by replacing the callable() built-in function with a hack
+ # that performs the same function but doesn't generate the warning.
+ # Note that this hack is ONLY intended to be used for regression
+ # testing, and should NEVER be used for real runs.
+ from types import ClassType
+ def callable(obj):
+ if hasattr(obj, '__call__'): return True
+ if isinstance(obj, (ClassType, type)): return True
+ return False
+