[Pythonmac-SIG] Problem when embedding classic

[Jack Jansen]

On Monday, August 5, 2002, at 12:32 , Stefan Petrucha wrote:

> I apologize for this Mac-beginner's problem and for bothering with old
> stuff (Python 2.1.1, classic).

Are you really using 2.1.1, not 2.2.1? And if you really are: why?

> I'm trying to embed Python into a classic application (I succeeded on
> Windows previously). The Mac port partially works, but:
>
> - MacPython opens its own window for standard and error output, which is
> not moveable and does update only when the application calls Python

In 2.2.1 you can make *very* sure that Python will never open a console 
window by
using the PyMac_SetConsoleHandler() API defined in macglue.h. You can 
pass the
courtesy routines PyMac_DummyReadHandler and PyMac_DummyWriteHandler 
also defined there
to completely lose console I/O, or provide your own routines. You can 
call PyMac_SetConsoleHandler() even before initializing Python.

Before 2.2.1 there wasn't a 100% safe method to get rid of the console, 
only a
99% safe method. In your Python script make sure that no output can go 
to the
console, by redirecting sys.stdout and sys.stderr at an early stage.
Also, drop the embedding program on EditPythonPrefs and set the "delay 
console
window until needed" flag.

But:
> - redirecting outputs via sys.stdout=MyStream, where MyStream has a
> write method, does not work as on other platforms - MyStream gets
> nothing and Python's output window shows nothing too

this part I don't understand, and my guess is that it's a bug in your 
code. I've done a
similar thing various times, and it has always worked....

--
- Jack Jansen        <Jack.Jansen@oratrix.com>        
http://www.cwi.nl/~jack -
- If I can't dance I don't want to be part of your revolution -- Emma 
Goldman -