Christoph Krammer wrote:
> Hello everybody,
>
> I try to use an external OCR tool to convert some binary image data to
> text. The image is in one variable, the text should be converted to
> another. I use the following code:
>
> (si, so, se) = os.popen3('ocrad')
> si.write(frame)
> si.close()
> messagetext += so.read()
If you use popen you should use *one* filehandle. The app
hangs because the buffer is full. See
http://docs.python.org/lib/popen2-flow-control.html
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Thomas Güttler, http://www.thomas-guettler.de/ http://www.tbz-pariv.de/
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