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
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