[wingide-users] An idea for better auto-completion

Vania Smrkovski vania at pandorasdream.com
Sun Sep 3 07:28:07 MDT 2006

Wing already does this for you.

If you use assert(isinstance(*variable*, *type*)), Wing will pick up on the
assert, and knowing that the assert will not allow processing to continue
past this point unless the assertion is met, it will presume everthing
following will treat that variable as that type and give you appropriate

There is a section in the documentation which, embarrassingly, I also
overlooked the first time, that also suggests that you can minimize problems
with circular imports by wrapping this code in if __debug__: blocks.  If,
for instance, your module does not NEED to know that your variable type is
an instance of wx.TreeCtrl because your currently edited page in the module
doesn't import wx.*anything*, but you want to use code-completion to access
barely-remembered wx.TreeCtrl methods and variables, you can use

if __debug__:
    import wx
    assert(isinstance(tablesTree, wx.TreeCtrl))

In this case, if I understand the specifics correctly, Wing will know to
find the TreeCtrl object in wx and provide you with appropriate assistance,
and of course when you run the app, that import will be attempted, if it
hasn't already happened.  But when you run your Python with the no debug
flag -) and all if __debug__ blocks and assert() statements will be
overlooked in the compile.

On 9/3/06, Toni Ruža <gmr.gaf at gmail.com> wrote:
> It often happens that Wing cannot tell the type of a certain variable
> and is unable to provide auto-completion (for example for a function
> argument). In almost all of those situations the programmer knows the
> type of that variable so it would make sense to help Wing out by
> somehow letting it know about it, maybe in some kind of specially
> formatted comment.
> What do you think about this? Should we press wingware to implement
> something like it? Or am I missing something? Does this already exists
> is some form?
> I often use a little trick for this but I don't like it. For example if I
> have:
> def foo(bar):
>    ...
> And I know "bar" will be a "SomeClass" instance, i temporarily put a
> "bar = SomeClass()" in the first line of the function and the
> auto-completion works fine.
> _________________________________________________
> Wing IDE users list
> http://wingware.com/lists/wingide
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