hide object property from dir() function?

[Matimus]

On Jan 14, 1:20 pm, jerryji <jerryji1... at gmail.com> wrote:
> Hi,
>
> Sorry for this newbie question, I was puzzled why the existing
> property of an object is not shown in the dir() function output.
>
> "v" is an lxml Element object variable --
>
> In [44]: v
> Out[44]: <Element 'documentProperties' at 0x8363cf8>
>
> In [45]: dir(v)
> Out[45]:
> ['__copy__',
>  '__deepcopy__',
>  '__reduce__',
>  'append',
>  'clear',
>  'find',
>  'findall',
>  'findtext',
>  'get',
>  'getchildren',
>  'getiterator',
>  'insert',
>  'items',
>  'keys',
>  'makeelement',
>  'remove',
>  'set']
>
> dir() output doesn't contain the ".tag", which does exist --
>
> In [46]: v.tag
> Out[46]: 'documentProperties'
>
> what is the rule governing the display of a property from dir()?


You can also make properties by modifying the __getattr__ and
__setattr__ methods of a class. When done that way it won't show up
when dir is called. So it isn't necessarily a rule, just a different
way of implementing a property.

Matt