On 23-Dec-2011, at 6:48 AM, MRAB wrote: > On 23/12/2011 01:07, Mac Smith wrote: >> >> On 23-Dec-2011, at 6:17 AM, MRAB wrote: >> >>> On 23/12/2011 00:33, Mac Smith wrote: >>>> Hi, >>>> >>>> >>>> I have started HandBrakeCLI using subprocess.popen but the output >>>> is multiline and not terminated with \n so i am not able to read >>>> it using readline() while the HandBrakeCLI is running. kindly >>>> suggest some alternative. i have attached the output in a file. >>>> >>> The lines are terminated with \r, so read with read() and then >>> split on "\r". >> >> read() will read the complete output and than i will be able to parse >> it, i want to read the output of the command in realtime. >> > Try telling it how much to read with read(size): > > def read_lines(output, line_ending="\n"): > buffer = "" > > while True: > chunk = output.read(1024) > if not chunk: > break > > buffer += chunk > > while True: > pos = buffer.find(line_ending) > if pos < 0: > break > > pos += len(line_ending) > yield buffer[ : pos] > buffer = buffer[pos : ] > > if buffer: > yield buffer > -- > http://mail.python.org/mailman/listinfo/python-list
thanks, this helped. just need to correct line_ending="\n" should be line_ending="\r" -- http://mail.python.org/mailman/listinfo/python-list