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4.2 is primarily a maintenance release, but includes at least one really nice new feature:

Python code passed to tohil::exec is now unindented before being passed to Python

Tohil’s #1 new feature request! Up until now, the argument to tohil::exec had to obey Python indentation rules including there being no indentation at all for the top level, leading to ugly stuff like:

...

tohil::exec {
   def new_validate(self, data):
        return json.loads(base64.b64decode(data))
}

Additional Improvements

• Added -nonevalue option to tohil::call, allowing the “none” sentinel to be specified arbitrarily (Retains the default value of tohil::NONE.)

• Cleaned up tohil namespace so dir(tohil) doesn’t show modules tohil imported as if it had created them.

• Made package forget tohil work.

• Added support for the Tcl unload command to be able to unload the Tohil shared library. (Consider it risky, though.)

Bug Fixes

• Fixed crash when register_callback-registered functions raised a Python exception

Improved Build Support

• Added support for building tohil as a Debian package

• Homebrew formula for building with homebrew