tkinter photoimage, couldn't recognize image data (PPM)

[Martin P. Hellwig]

Hi all,

I've tried to display an image with the source being a string but it 
fails (see below). Is there a way to display PPM without writing it 
first to a file?

Thanks,

Martin

----- snippet -----
'''
Ubuntu 9.04 64bit, python 3.1
'''
import tkinter

DATA="""P3
3 2
255
255   0   0     0 255   0     0   0 255
255 255   0   255 255 255     0   0   0"""

def display():
     tk = tkinter.Tk()
     canvas = tkinter.Canvas(tk, width=3, height=2)
     canvas._image_reference = tkinter.PhotoImage(format='ppm', data=DATA)
     canvas.create_image((0,0), image=canvas._image_reference)
     canvas.pack()
     tk.after(1500, tk.quit)
     tk.mainloop()

if __name__ == '__main__':
     display()
-----

----- traceback -----
Traceback (most recent call last):
   File "/home/martin/DCUK 
Technologies/workspace/mhellwig/src/test/tkintering.py
", line 24, in <module>
     display()
   File "/home/martin/DCUK 
Technologies/workspace/mhellwig/src/test/tkintering.py
", line 17, in display
     canvas._image_reference = tkinter.PhotoImage(format='ppm', data=DATA)
   File "/usr/local/lib/python3.1/tkinter/__init__.py", line 3269, in 
__init__
     Image.__init__(self, 'photo', name, cnf, master, **kw)
   File "/usr/local/lib/python3.1/tkinter/__init__.py", line 3225, in 
__init__
     self.tk.call(('image', 'create', imgtype, name,) + options)
_tkinter.TclError: couldn't recognize image data
-----

-- 
MPH
http://blog.dcuktec.com
'If consumed, best digested with added seasoning to own preference.'