- update to 2.0:
* Drop support for Python 2.7, 3.4, 3.5, 3.6.
* Add support for Python 3.10, 3.11.
* [breaking] If a bytes object is serialized by a String schema
node with the encoding parameter specified, it will be passed
through directly to str first, causing it to come out with a
b'' prefix. In order to serialize it properly, it should be
decoded to a string first. Previously, when the encoding
parameter was specified it would be decoded and re-encoded,
effectively passing it through untouched, despite not being a
string type.
* Add a new colander.DataURL validator.
* Add IDN support to colander.url.
* colander.All now supports colander.Invalid.msg being None or
a list, otherwise colander.Invalid.asdict crashes with
TypeError: sequence item 1: expected str instance, NoneType
found.
* Fixed an issue with colander.Mapping and colander.Sequence
where a default value of drop caused missing values to be
dropped during deserialization. (Only missing values should
affect deserialization, and only default values should affect
serialization.) Added many new test cases for MappingSchema
and SequenceSchema.
* Remove the dependency on setuptools for resolving
pkg_resources-style importable paths in
colander.GlobalObject.
* Refresh localization files with Babel 2.11.
* Add support for Python 3.9.
* Fix handling of insert_before on deferred nodes so that it
inserts the new node before the specified node instead of