def test_to_json(self):
d = dict(a=[1, 2])
self.assertEqual(h.to_json(d), json.dumps(d, sort_keys=False, indent=None, separators=(",", ":")))
self.assertEqual(h.to_json(d, True), json.dumps(d, sort_keys=True, indent=2, separators=(", ", ": ")))
with self.assertRaises(TypeError):
d = dict(dt=datetime.now())
h.to_json(d)
h.register_json_default(lambda o: hasattr(o, "isoformat"), lambda o: o.isoformat())
self.assertEqual(h.to_json(d), h.to_json(h.pick(d, ["dt"], transform=lambda n: n.isoformat())))
def to_dict(self, *, include_keys=None, exclude_keys=None, use_default_excludes=True):
"""Converts the class to a dictionary.
:include_keys: if not None, only the attrs given will be included.
:exclude_keys: if not None, all attrs except those listed will be included, with respect to
use_default_excludes.
:use_default_excludes: if True, then the class-level exclude_keys_serialize will be combined
with exclude_keys if given, or used in place of exlcude_keys if not given.
"""
data = self.__dict__
if include_keys:
return pick(data, include_keys, transform=self._other_to_dict)
else:
skeys = self.exclude_keys_serialize if use_default_excludes else None
ekeys = exclude_keys
return exclude(
data,
lambda k: (skeys is not None and k in skeys) or (ekeys is not None and k in ekeys),
transform=self._other_to_dict)
def test_pick(self): d = dict(a=1, b=2, c=3, d=4) self.assertEqual(h.pick(d, ["a", "b"]), dict(a=1, b=2)) self.assertEqual(h.pick(d, lambda k: k <= "c"), dict(a=1, b=2, c=3)) self.assertEqual(h.pick(d, ["a", "b"], transform=lambda n: n * 2), dict(a=2, b=4))