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Thread: ActiveState Python 2.5.1.1, Boost 1.34.1 and MSVC 8 SP1 problem
ActiveState Python 2.5.1.1, Boost 1.34.1 and MSVC 8 SP1 problem
user name
 2008-03-28 04:34:03 

  


  

    Hi
all,

I'am currently working on small project which
involves
a python programm which calls a C++ DLL using Boost
Python.
I use MSVC 8 with SP1 and Boost Python 1.34.1, compiled
as follows:

goto: cd C:Program FilesMicrosoft Visual
Studio 8VCbin
exec: vcvars32.bat
goto: cd
$(BOOST_DIR)/tools/jam/src
exec: build.bat vc8
goto: cd
$(BOOST_DIR)
exec: toolsjamsrcbin.ntx86bjam.exe
-sPYTHON_VERSION=2.5 -sPYTHON_ROOT=c:Python25 --toolset=msvc-8.0
--with-python --stagedir=. stage debug release

Everything
worked fine using ActiveState Python 2.3.2-232 and ActiveState Python
2.4.3.12.
But after switching to ActiveState Python 2.5.1.1, I can
not import the DLL anymore (without
any detailed error message). It
simply doesn't work.

So the question is, is this a problem of
the ActiveState Python (in which case I apologize
this stupid post
 ), or a problem of Boost Python with Python 2.5?? I have not found
an
answer to the problem on the web.

Any help is
welcome.

Cheers
    boro





  

  
  
   
     
    

  

    Re:  ActiveState Python 2.5.1.1, Boost
1.34.1 and MSVC 8 SP1 problem
  


  

     user name

     2008-03-28 05:39:52
  


  

    

  


  

    > From: 
c++-sig-bouncespython.org [mailto:c++-sig-bouncespython.org] On Behalf Of 
Stefan.Borovact-online.de
> 
Sent: 28 March 2008 09:34
> To: 
c++-sigpython.org
> Subject: 
[C++-sig] ActiveState Python 2.5.1.1,Boost 1.34.1 and MSVC 8 SP1 
problem
> Everything worked fine using ActiveState 
Python 2.3.2-232 and ActiveState Python 2.4.3.12.
> But after switching to ActiveState 
Python 2.5.1.1, I can not import the DLL anymore (without
> any detailed error message). It simply 
doesn't work.
 

Have you tried examining the DLL with DependencyWalker 
?



 


Also sometimes details about 
failed DLL imports can appear in the EventLog.


 



Were you building previously 
against Python 2.3 and 2.4 using MSVC 8 ? If not you may now be encountering a a 
c-runtime conflict although that's just a guess. If that is the problem, 
try building a Python 2.5 from source with VC 8. This will make your build 
non-standard though, so then you face issues distributing your 
DLL.



 



Good luck,


Mark



 
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    Re:  ActiveState Python 2.5.1.1, Boost
1.34.1 and MSVC 8 SP1 problem
  


  

     user name

     2008-03-28 06:21:58
  


  

    

  


  

    

>> Everything worked fine
using ActiveState Python 2.3.2-232 and ActiveState Python 2.4.3.12.
>> But after
switching to ActiveState Python 2.5.1.1, I can not import the DLL
anymore (without
>>
any detailed error message). It simply doesn't
work.
 
 
> Have you tried examining the DLL with
DependencyWalker ? 

Yes, there was nothing suspicious.

> Also sometimes details about failed DLL imports
can appear in the EventLog.
Also, nothing at all. When I used the
Python import statement, the interpreter
answers:

>>> import TTBridge
Traceback (most recent call
last):
  File "<stdin>&quot;, line 1, in ?
ImportError: No module named TTBridge

   



 
>Were you
building previously against Python 2.3 and 2.4 using MSVC 8 ? 
Yes,
yesterday I tried out all configurations mentioned earlier.

> If that is the problem, try building a Python 2.5 from source
with VC 8. This will make your build non-standard 
> though, so
then you face issues distributing your DLL.
Probably there will be
a post until monday. If not, I will try to build Python 2.5 on my
own.

 
 
 
>Good
luck,
 
>Mark

Cheers,
   
Stefan
 







  

  
  
   
     
    

  

    Re:  ActiveState Python 2.5.1.1, Boost
1.34.1 and MSVC 8 SP1 problem
  


  

     user name

     2008-03-28 06:27:26
  


  

    

  


  

    
  
From: c++-sig-bouncespython.org 
  [mailto:c++-sig-bouncespython.org] On Behalf Of 
  Stefan.Borovact-online.de
Sent: 28 March 2008 
  11:22
To: Development of Python/C++ integration
Subject: 
  Re: [C++-sig] ActiveState Python 2.5.1.1, Boost 1.34.1 and MSVC 8 SP1 
  problem


  

  


  
>>&gt; import 
  TTBridge
Traceback (most recent call last):
&nbsp; File "<stdin>", 
  line 1, in ?
ImportError: No module named 
  TTBridge

  
 


Are you sure your module 
is on the Python25 PYTHONPATH 
?
_______________________________________________________________________

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it is addressed and may be privileged and confidential.

Unauthorised use or disclosure is prohibited. If you receive this
e-mail in error, please advise immediately and delete the original
message without copying, using, or telling anyone about its contents.


This message may have been altered without your or our knowledge and
the sender does not accept any liability for any errors or omissions

in the message.

This message does not create or change any contract.  Royal Bank of
Canada and its subsidiaries accept no responsibility for damage caused
by any viruses contained in this email or its attachments.  Emails may
be monitored.

RBC Capital Markets is a business name used by branches and
subsidiaries of Royal Bank of Canada, including Royal Bank of Canada,
London branch and Royal Bank of Canada Europe Limited. In accordance
with English law requirements, details regarding Royal Bank of Canada
Europe Limited are set out below:

ROYAL BANK OF CANADA EUROPE LIMITED
Registered in England and Wales 995939
Registered Address: 71 Queen Victoria Street, London, EC4V 4DE.
Authorised and regulated by the Financial Service Authority.
Member of the London Stock Exchange


  

  
  
   
     
    

  

    Re:  ActiveState Python 2.5.1.1, Boost
1.34.1 and MSVC 8 SP1 problem
  


  

     country flaguser name
Germany		
     2008-03-28 06:35:23
  


  

    
Am Freitag, 28. März 2008 12:21:58 schrieb
Stefan.Borovact-online.de:
> <font style="font-family:
arial,helvetica,sans-serif;"
size="2"><div
> align="left" dir="ltr"><font
face="Tahoma"><font
size="2"><br
> /></font></font><font
style="font-family:
> arial,helvetica,sans-serif;"><font
size="2"><span
> class="539543310-28032008"><font
color="#0000ff"><font
face="Tahoma"

Please stop sending HTML junk to the mailing list.

-- 
Ciao, /  /
     /--/
    /  / ANS
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    Re:  ActiveState Python 2.5.1.1, Boost
1.34.1 and MSVC 8 SP1 problem
  


  

     user name

     2008-03-28 07:42:26
  


  

    
 >  >>> import    TTBridge
> Traceback (most recent call last):
> File "",    line 1, in ?
> ImportError: No module named    TTBridge

>    Are you sure your module  is on the Python25
PYTHONPATH  ?

Yes, I tested it also.

However, we start considering another approach to this
problem.
We can use Python 2.4 until we found a workaraound. That is
a pity 
but unavoidable in these conditions (I don't have the
time).

Cheers
  Stefan

P.S.: Sorry about the HTML junk, hope this message is plain
text only!




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    Re:  ActiveState Python 2.5.1.1, Boost
1.34.1 and MSVC 8 SP1 problem
  


  

     country flaguser name
United States		
     2008-03-28 10:03:52
  


  

    
Stefan.Borovact-online.de wrote:

> I'am currently working on small project which involves
> a python programm which calls a C++ DLL using Boost
Python.
> 
> Everything worked fine using ActiveState Python
2.3.2-232 and ActiveState Python 
> 2.4.3.12.
> But after switching to ActiveState Python 2.5.1.1, I
can not import the DLL 
> anymore (without
> any detailed error message). It simply doesn't work.

Try renaming your .dll to .pyd? See this section in the
"What's New in 
Python 2.5" documentation:
http://docs.python.org/whatsnew/ports.ht
ml#SECTION0001510000000000000000

"Windows: .dll is no longer supported as a filename
extension for 
extension modules. .pyd is now the only filename extension
that will be 
searched for."
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