overwrite private method... (of wxColumnSorterMixin class)

[Florian Preknya]

Is there a posibility to overwrite a private method (one that starts with
__ ) ? I read that they are just formely private, they are prefixed with the
class name to have an obtured visibility, so maybe it's a trick here...

More details...
I use wxPython, more specifically the wxColumnSorterMixin class. I want to
overwrite the __OnColClick event handler to behave on my way: I want the
sorting feature will affect only some columns, not all columns and that
event handler is the key. The problem is that the event chain is skiped in
the __OnColClick method, so I cannot receive the event anymore. So, my idea
was to overwrite the __OnColClick method in the mixin subclass. Is this
possible? Or, are they other solutions for this ?

Thanks,
Florian.

 

[Zachary]

Is there a posibility to overwrite a private method (one that starts with
__ ) ? I read that they are just formely private, they are prefixed with the
class name to have an obtured visibility, so maybe it's a trick here...

More details...
I use wxPython, more specifically the wxColumnSorterMixin class. I want to
overwrite the __OnColClick event handler to behave on my way: I want the
sorting feature will affect only some columns, not all columns and that
event handler is the key. The problem is that the event chain is skiped in
the __OnColClick method, so I cannot receive the event anymore. So, my idea
was to overwrite the __OnColClick method in the mixin subclass. Is this
possible? Or, are they other solutions for this ?

Thanks,
Florian.

What you read is true, so far as I know. It is possible to override them,
as Python doesn't have a notion of encapsulation, again, as far as I know.
You can probably get away with this.

 

[Jp Calderone]

What you read is true, so far as I know. It is possible to override them,
as Python doesn't have a notion of encapsulation, again, as far as I know.
You can probably get away with this.

Encapsulation is not the same thing as data hiding or private
attributes/methods. Python does not have private attributes or methods, so
this is possible. Python *does* support the concept of encapsulation, but
that is mostly unrelated to the question at hand.

class CustomColumnSorter(wxColumnSorterMixin):
def _wxColumnSorterMixin__OnColClick(...):
...

Assuming wxColumnSorterMixin is subclassable, this will work. It may not
be, though. There is also probably a better way to achieve the results
you're looking for. Perhaps by specifying a callback in some other way,
such as binding a handler to an event.

Jp