On Dec 30, 2010, at 10:04 PM, avdd wrote:

> 
> 
> As an aside, hybrid.py defines property_ (mangled) where the docs
> refer to the unmangled.  What's the reason for the mangling of names
> that shadow builtins?  

I'm not really comfortable with those names, in my own work I've called them 
@hybrid_property and @hybrid_method, which in this context seems redundant to 
call them @hybrid.hybrid_property, but at the moment that still seems better to 
me.   When you see me sticking a "_" on the end of an identifier it means 
TextMate was lighting it up as a reserved word.    Of course it doesn't always 
light it up depending on context....but anyway I really don't like @property_ 
at all so ill probably change it.



> Lint complaints?  I find it similarly annoying
> seeing type_ and such everywhere.  (I wish python had a standard top-
> level namespace!)
> 
> 
> 
> 
> 
> On Dec 31, 3:37 am, Michael Bayer <mike...@zzzcomputing.com> wrote:
>> On Dec 30, 2010, at 8:35 AM, avdd wrote:
>> 
>>> Hi there
>> 
>>> Just wondering, before 0.7 is released and the API is baked, is it
>>> necessary to have all event names start with "on_"?  It seems
>>> redundant and hackish. (Use a property?)
>> 
>> What's hackish ?   Are you referring to the internals of event.py which look 
>> for "on_" in a few places ?  That's not the rationale for the presence of 
>> "on_", though it is convenient.
>> 
>> The rationale for "on_" is so that event names are placed into their own 
>> namespace, disambiguating them from other methods that are present on the 
>> parent Events class which deal with the mechanics of registering and 
>> de-registering events.    
>> 
>> Prefixing event names with "on" is a very common practice - Hibernate's 
>> event system, which I consulted before developing sqlalchemy.event, uses the 
>> same scheme:
>> 
>>        
>> http://docs.jboss.org/hibernate/core/3.6/javadocs/org/hibernate/event...
>>        
>> http://docs.jboss.org/hibernate/core/3.6/javadocs/org/hibernate/event...
>> 
>> Javascript as we know uses "on":
>> 
>>        http://www.w3.org/TR/html4/interact/scripts.html#h-18.2.3
>> 
>> wxpython:
>> 
>>        http://wiki.wxpython.org/Getting%20Started#Event_handling
>> 
>> so this decision wasn't made in a vacuum and naming all events on_XYZ feels 
>> very natural to me.    I'd welcome anyone else's thoughts on the matter.
>> 
>> 
>> 
>>> Also, "retval" seems a prominent api symbol, it seems a shame to have
>>> such a strained abbreviation.  "returns" ?
>> 
>> "retval" is not fantastic, though it is a known term used by pdb for 
>> instance.   "returns" as a boolean sounds like its suggesting the function 
>> may or may not return.   A non-abbrevated name would be "has_return_value".
>> 
>> 
>> 
>>> a.
>> 
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>> 
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