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Fix dynamic attribute inheritance in C++

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`PyType_Ready` would usually perform the inheritance for us, but it
can't adjust `tp_basicsize` appropriately.
This commit is contained in:
Dean Moldovan
2016-10-14 18:01:17 +02:00
parent 5c13749aea
commit b8cb5ca7bd
3 changed files with 17 additions and 8 deletions
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17
tests/test_methods_and_attributes.py
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@@ -48,7 +48,7 @@ def test_methods_and_attributes():
def test_dynamic_attributes():
from pybind11_tests import DynamicClass
from pybind11_tests import DynamicClass, CppDerivedDynamicClass
instance = DynamicClass()
assert not hasattr(instance, "foo")
@@ -76,16 +76,17 @@ def test_dynamic_attributes():
assert cstats.alive() == 0
# Derived classes should work as well
class Derived(DynamicClass):
class PythonDerivedDynamicClass(DynamicClass):
pass
derived = Derived()
derived.foobar = 100
assert derived.foobar == 100
for cls in CppDerivedDynamicClass, PythonDerivedDynamicClass:
derived = cls()
derived.foobar = 100
assert derived.foobar == 100
assert cstats.alive() == 1
del derived
assert cstats.alive() == 0
assert cstats.alive() == 1
del derived
assert cstats.alive() == 0
def test_cyclic_gc():