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() This code leads to a broken pipe error. I think this is because of the command already writing data to stdout after getting the first part of the input. But when I change the order of the code lines, i.e. opening the reading pipe so before writing to si, the program hangs, because no data is written to stdout before the first bytes are written to stdin. Any idea how to solve this issue? How do I read and write simultaneously? Thanks in advance, Christoph -- http://mail.python.org/mailman/listinfo/python-list