[Pythonmac-SIG] Python embedding in LabVIEW on Mac? (oops, found part of the problem)
Thu, 20 Jun 2002 22:09:36 +0200
On donderdag, juni 20, 2002, at 06:58 , Marcus H. Mendenhall wrote:
> OK, in response to my own post (sorry), I found an oops
> involving calling Py_Initialize instead of PyMac_Initialize .
> Now, LabVIEW gets much farther into the embedding startup, but
> still doesn't quite work. The remaining, important question
> is whether any has had this work under newer version of
> LabVIEW, since the 5.0.1 release is quite old.
Calling PyMac_Initialize() in stead of Py_Initialize() is
definitely needed when embedding MacPython. But even then there
are probably pitfalls. Some I can think of:
- the two event loops (MacPython's and LabVIEW's) may get in
each others way. Also, if you have windows open in both you may
get a continuous stream of Update Events for a window which your
event loop knows nothing about.
- Python may have problems with missing some of the resources it
needs (to find the initial sys.path and other preferences and
such). Check :Mac:Demo:embed.html for some of the details (but
it is by no means complete).
- It may help to set Py_VerboseFlag to 1 (or 2 for even more
output) before calling PyMac_Initialize. This'll give all sorts
of debug output for importing modules and such. But: if your
problem is eventloop/window/IO-system related this'll probably
- Jack Jansen <Jack.Jansen@oratrix.com>
- If I can't dance I don't want to be part of your revolution --
Emma Goldman -