[Python.NET] FromManagedObject and Booleans

[Brian Lloyd]

That might actually be because bool didn't exist in python way back
then ;) I suspect its probably safe to fix it now.

-Brian


On 11/2/07 12:14 PM, "Michael Foord" <fuzzyman at voidspace.org.uk> wrote:

> Hello all,
> 
> I'm using the Python.Runtime assembly to provide access to CPython
> modules from IronPython.
> 
> I'm converting objects that pass from CPython to IronPython (and
> vice-versa) by converting datatypes or proxying access.
> 
> To convert to CPython types I use "PyObject.FromManagedObject(obj)"
> where possible and do type specific conversion for other types.
> 
> Unfortunately "PyObject.FromManagedObject(obj)" doesn't work for
> booleans and passing in booleans to CPython doesn't result in 'True' or
> 'False', but a 'System.Boolean' instead.
> 
> As a workaround I'm using:
> 
> @GIL
> def _getBools():
>     "Hack because 'FromManagedObject' doesn't work for bools"
>     builtin = engine.ImportModule('__builtin__')
>     return {False: builtin.GetAttr('False'), True: builtin.GetAttr('True')}
> 
> _bools = _getBools()
> 
> Is the fact that "PyObject.FromManagedObject(obj)" doesn't work for
> booleans a bug? (Or is there an alternative method you can suggest?)
> 
> All the best,
> 
> 
> Michael Foord
> http://www.manning.com/foord
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--------------------------
Brian Lloyd

brian.lloyd at revolutionhealth.com