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-rw-r--r--msgpack/_packer.pyx2
-rw-r--r--msgpack/fallback.py4
2 files changed, 6 insertions, 0 deletions
diff --git a/msgpack/_packer.pyx b/msgpack/_packer.pyx
index e6cd2c7..396da0c 100644
--- a/msgpack/_packer.pyx
+++ b/msgpack/_packer.pyx
@@ -285,6 +285,8 @@ cdef class Packer(object):
o = self._default(o)
default_used = 1
continue
+ elif self.datetime and PyDateTime_CheckExact(o):
+ PyErr_Format(ValueError, b"can not serialize '%.200s' object where tzinfo=None", Py_TYPE(o).tp_name)
else:
PyErr_Format(TypeError, b"can not serialize '%.200s' object", Py_TYPE(o).tp_name)
return ret
diff --git a/msgpack/fallback.py b/msgpack/fallback.py
index 4540875..b27acb2 100644
--- a/msgpack/fallback.py
+++ b/msgpack/fallback.py
@@ -874,6 +874,10 @@ class Packer(object):
obj = self._default(obj)
default_used = 1
continue
+
+ if self._datetime and check(obj, _DateTime):
+ raise ValueError("Cannot serialize %r where tzinfo=None" % (obj,))
+
raise TypeError("Cannot serialize %r" % (obj,))
def pack(self, obj):