Chameleon 3.8.0 changes rendering of `checked` attribute in radios and checkboxes

[Steve Piercy]

Chameleon 3.8.0 made changes that affect how radios and checkboxes render False values.

• Expose default marker as importable symbol chameleon.tales.DEFAULT_MARKER.
• Removed legacy flag literal_false. To get a similar behavior, use boolean_attributes.

For now, the workaround is to pin Chameleon < 3.8.0.

See malthe/chameleon#318

[Steve Piercy]

Fixed by #418

[Stéphane Brunner]

Do you know when can we have a release with this fix?

[Steve Piercy]

@sbrunner how about now? 😉

[Stéphane Brunner]

Thanks :-)