[python-win32] speed up win32com.client

[DANIEL POSE]

I had tried to change attribute name in several ways (InsertionPoint,
insertionPoint, insertionpoint,...) but I obtained the same error:

Traceback (most recent call last):
  File "<ipython console>", line 1, in <module>
  File
"C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\startup.py",
line 128, in runfile
    execfile(filename, glbs)
  File "C:\Documents and Settings\Usuario\Mis
documentos\Dropbox\PYTHON\PruebaAutoCAD.py", line 29, in <module>
    M.append(objeto.insertionpoint)
  File "C:\Python27\lib\site-packages\win32com\client\__init__.py", line
465, in __getattr__
    raise AttributeError("'%s' object has no attribute '%s'" % (repr(self),
attr))
AttributeError: '<win32com.gen_py.AutoCAD 2008 Type Library.IAcadEntity
instance at 0x88940672>' object has no attribute 'insertionpoint'

If I delete only the  win32com\client\gen_py  folder It doesn't work. I
need delete for example win32com and win32 folders and restore older ones.


2012/5/12 Mark Hammond <skippy.hammond at gmail.com>

> On 10/05/2012 6:38 AM, DANIEL POSE wrote:
>
>> I have read about Early Binding but I hadn't tested the line that you
>> reference:
>> acad= win32com.client.gencache.**EnsureDispatch("AutoCAD.**Application")
>>
>> For my surprise, if I replace line:
>>
>> acad= win32com.client.Dispatch("**AutoCAD.Application")
>>
>> for the line:
>>
>> acad= win32com.client.gencache.**EnsureDispatch("AutoCAD.**Application")
>>
>> I have an error about a missing attribute in the line:
>>
>> M.append(objeto.**InsertionPoint)
>>
>
> Once you use early-binding, the object becomes case sensitive where it
> usually wasn't before.  So I suspect you wanted something like
> "insertionPoint" or some other difference in case.
>
>
>  The problem here is that if now I go back to use the line:
>>
>> acad= win32com.client.Dispatch("**AutoCAD.Application")
>>
>> Now pywin32 brokes and I have always the same error in line:
>> M.append(objeto.**InsertionPoint)
>>
>> I need to reinstall pywin32 in order to repair the problem.
>>
>
> Yeah, this is unfortunate - once you've generated the early binding
> support, win32com.client.Dispatch will generally be able to use it.  A work
> around without reinstalling would have been to delete the
> win32com\client\gen_py directory.
>
> HTH,
>
> Mark
>
>
>>
>>
>> 2012/5/8 Tim Roberts <timr at probo.com <mailto:timr at probo.com>>
>>
>>
>>    DANIEL POSE wrote:
>>     > Hello,
>>     >
>>     > I am writing code to program AutoCAD access from Python using
>>    pywin32.
>>     > When I need to work with a high number of AutoCAD objects, it is
>>     > faster to use vba than python.
>>     > Are there some way to speed up python code in order to work faster
>>     > with AutoCAD elements?
>>     > For example in the next code when I work with 512 AutoCAD blocks:
>>     > ...
>>     >
>>     > The output for the code is the following:
>>     >
>>     > M_dimension= 512
>>     > R_dimension= 262144
>>     > t_block1= 4.25343304805
>>     > t_block2= 3.88635510938
>>     > t_block3= 0.487477319045
>>     >
>>     >
>>     > Then it is faster to work with R than M, even though R is bigger.
>>     >
>>
>>    I hope that's not a surprise to you.  The first loop (block2) involves
>>    two calls into the AutoCAD COM object in each iteration.  The second
>>    loop (block3) is simply manipulating lists of integers, entirely within
>>    Python.
>>
>>     > Some suggestions for speed up pywin32 code in this example?
>>     >
>>
>>    There isn't really anything here to speed up.  You're just "glue".  The
>>    work is being done in AutoCAD.  It is almost impossible for me to
>>    believe that Visual Basic does this same loop any faster.
>>
>>    However, you can certainly try switching to early binding by using:
>>        acad= win32com.client.gencache.**EnsureDispatch("AutoCAD.**
>> Application")
>>
>>    --
>>    Tim Roberts, timr at probo.com <mailto:timr at probo.com>
>>
>>    Providenza & Boekelheide, Inc.
>>
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>> >
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>>
>>
>>
>>
>>
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