I am new to python. I have a few questions coming from an armature!

[Lawrence D’Oliveiro]

On Thursday, August 18, 2016 at 12:55:33 PM UTC+12, Terry Reedy wrote:
>
> On 8/17/2016 7:13 PM, Lawrence D’Oliveiro wrote:
>
>> On Thursday, August 18, 2016 at 8:25:37 AM UTC+12, Terry Reedy wrote:
>>>
>>>          for section_name, line_number in text.parser.toc:
>>>              def goto(line=line_number):
>>>                  text.yview(line)
>>>              drop.add_command(label=section_name, command=goto)
>>
>> You don’t think of that as having its own bit of subtle nastiness?
> 
> No, you will have to be explicit.

That’s not my idea of being “explicit” at all. I hit a similar issue here <https://github.com/ldo/harfpy>. My solution took this sort of form:

    ...
    #end Face

    def def_face_props(celf) :
        # get/set index, upem and glyph_count all have the same form:
        # all these properties are unsigned integers.

        def def_face_prop(propname) :
            # need separate inner function so each method gets
            # correct values for hb_getter and hb_setter
            hb_getter = "hb_face_get_%s" % propname
            hb_setter = "hb_face_set_%s" % propname

            def getter(self) :
                return \
                    getattr(hb, hb_getter)(self._hbobj)
            #end getter

            def setter(self, newval) :
                getattr(hb, hb_setter)(self._hbobj, newval)
            #end setter

            getter.__name__ = propname
            getter.__doc__ = "the %s property." % propname
            setter.__name__ = propname
            setter.__doc__ = "sets the %s property." % propname
            propmethod = property(getter)
            propmethod = propmethod.setter(setter)
            setattr(celf, propname, propmethod)
        #end def_face_prop

    #begin def_face_props
        for propname in ("index", "upem", "glyph_count") :
            def_face_prop(propname)
        #end for
    #end def_face_props
    def_face_props(Face)
    del def_face_props