ReadOnly with an explicit value_type

[mpenning]

Is there a way to enforce ReadOnly trait type?

For example, I need something like this...

from traits.api import CStr, ReadOnly
from traits.api import HasTraits

class Foo(HasTraits):
    attr_01 = ReadOnly(value_type=CStr)

foo = Foo(attr_01=123)   # <--- This does not result in `CStr` value today...
print("attr_01 Type:", type(foo.attr_01))
print("attr_01 Value:", foo.attr_01)

Running this:

attr_01 Type: <class 'int'>
attr_01 Value: 123

Is there a way to achieve ReadOnly with a value_type today?

[mdickinson]

I'm afraid there isn't, at the moment. There's a PR open along those lines, though: #488. Would the feature described in that PR work for you, or were you looking for something different?

[mdickinson]

Converting to a discussion.