2011/6/20 Csanády István <istvancsan...@gmail.com>
> Hi All!
> I am trying to use pyocc from C++, with the embedded python api. If I
> run the app from XCode, I got the following errors when initializing
> SimpleGUI:
> Traceback (most recent call last):
> File "???", line 7, in <module>
> File "/Users/istvancsanady/Documents/workspace/butterfly/src/pool.py",
> line 12, in <module>
> display, start_display, add_menu, add_function_to_menu = init_display()
> File "/Library/Python/2.6/site-packages/OCC/Display/SimpleGui.py",
> line 173, in init_display
> from XDisplay import XOCCWindow
> File "/Library/Python/2.6/site-packages/OCC/Display/XDisplay.py",
> line 28, in <module>
> import OCCViewer
> File "/Library/Python/2.6/site-packages/OCC/Display/OCCViewer.py",
> line 77, in <module>
> set_CSF_GraphicShr()
> File "/Library/Python/2.6/site-packages/OCC/Display/OCCViewer.py",
> line 62, in set_CSF_GraphicShr
> p2 =
> subprocess.Popen(['grep','-i','libTkOpenGl'],stdin=p1.stdout,stdout=subprocess.PIPE)
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py",
> line 595, in __init__
> errread, errwrite)
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py",
> line 1101, in _execute_child
> data = os.read(errpipe_read, 1048576) # Exceptions limited to 1 MB
> OSError: [Errno 4] Interrupted system call
> Or the other one:
> Traceback (most recent call last):
> File "???", line 7, in <module>
> File "/Users/istvancsanady/Documents/workspace/butterfly/src/pool.py",
> line 12, in <module>
> display, start_display, add_menu, add_function_to_menu = init_display()
> File "/Library/Python/2.6/site-packages/OCC/Display/SimpleGui.py",
> line 174, in init_display
> win = XOCCWindow(display_xlib.Display(),"pythonOCC-%s 3d viewer
> ('python-xlib' backend)"%VERSION)
> File "/Library/Python/2.6/site-packages/Xlib/display.py", line 83, in
> __init__
> self.display = _BaseDisplay(display)
> File "/Library/Python/2.6/site-packages/Xlib/display.py", line 65, in
> __init__
> apply(protocol.display.Display.__init__, (self, ) + args, keys)
> File "/Library/Python/2.6/site-packages/Xlib/protocol/display.py",
> line 44, in __init__
> name, host, displayno, screenno = connect.get_display(display)
> File "/Library/Python/2.6/site-packages/Xlib/support/connect.py",
> line 64, in get_display
> mod = __import__(modname, globals())
> File "/Library/Python/2.6/site-packages/Xlib/support/unix_connect.py",
> line 43, in <module>
> uname = platform.uname()
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/platform.py",
> line 1194, in uname
> processor = _syscmd_uname('-p','')
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/platform.py",
> line 950, in _syscmd_uname
> output = string.strip(f.read())
> IOError: [Errno 4] Interrupted system call
>
> And another one:
>
> Traceback (most recent call last):
> File "???", line 7, in <module>
> File "/Users/istvancsanady/Documents/workspace/butterfly/src/pool.py",
> line 12, in <module>
> display, start_display, add_menu, add_function_to_menu = init_display()
> File "/Library/Python/2.6/site-packages/OCC/Display/SimpleGui.py",
> line 174, in init_display
> win = XOCCWindow(display_xlib.Display(),"pythonOCC-%s 3d viewer
> ('python-xlib' backend)"%VERSION)
> File "/Library/Python/2.6/site-packages/Xlib/display.py", line 83, in
> __init__
> self.display = _BaseDisplay(display)
> File "/Library/Python/2.6/site-packages/Xlib/display.py", line 65, in
> __init__
> apply(protocol.display.Display.__init__, (self, ) + args, keys)
> File "/Library/Python/2.6/site-packages/Xlib/protocol/display.py",
> line 44, in __init__
> name, host, displayno, screenno = connect.get_display(display)
> File "/Library/Python/2.6/site-packages/Xlib/support/connect.py",
> line 64, in get_display
> mod = __import__(modname, globals())
> File "/Library/Python/2.6/site-packages/Xlib/support/unix_connect.py",
> line 43, in <module>
> uname = platform.uname()
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/platform.py",
> line 1194, in uname
> processor = _syscmd_uname('-p','')
> File
> "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/platform.py",
> line 950, in _syscmd_uname
> output = string.strip(f.read())
> IOError: [Errno 4] Interrupted system call
>
>
>
> And the strangest thing: sometimes IT WORKS! If I start the app from
> Terminal or Finder, everything works always fine... Any ideas?
>
> István
>
Hi,
Reading the trace, I have the feeling you're trying to use multithreading or
multiprocessing. It's a bad idea to call a GUI from a specific thread (the
GUI mainloop generally conflicts with the subthread).
I can't help you further without any information about the code you're
running.
Thomas
_______________________________________________
Pythonocc-users mailing list
Pythonocc-users@gna.org
https://mail.gna.org/listinfo/pythonocc-users
