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| author | jab <jab@users.noreply.github.com> | 2018-03-22 11:26:06 (GMT) |
|---|---|---|
| committer | Ivan Levkivskyi <levkivskyi@gmail.com> | 2018-03-22 11:26:06 (GMT) |
| commit | 40472dd42de4f7265d456458cd13ad6894d736db (patch) | |
| tree | 2e6defa875a783260642cf6fa2546f0db387b6a3 /Modules | |
| parent | d93b5161af12291f3f98a260c90cc2975ea9e9cd (diff) | |
| download | cpython-40472dd42de4f7265d456458cd13ad6894d736db.zip cpython-40472dd42de4f7265d456458cd13ad6894d736db.tar.gz cpython-40472dd42de4f7265d456458cd13ad6894d736db.tar.bz2 | |
bpo-33018: Improve issubclass() error checking and message. (GH-5944)
This improves error message for situations when a non-class is
checked w.r.t. an abstract base class.
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/_abc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Modules/_abc.c b/Modules/_abc.c index 8628839..7daa18e 100644 --- a/Modules/_abc.c +++ b/Modules/_abc.c @@ -569,6 +569,11 @@ _abc__abc_subclasscheck_impl(PyObject *module, PyObject *self, PyObject *subclass) /*[clinic end generated code: output=b56c9e4a530e3894 input=1d947243409d10b8]*/ { + if (!PyType_Check(subclass)) { + PyErr_SetString(PyExc_TypeError, "issubclass() arg 1 must be a class"); + return NULL; + } + PyObject *ok, *mro = NULL, *subclasses = NULL, *result = NULL; Py_ssize_t pos; int incache; |