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Alex Rivera
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I need to create a diff file using standard UNIX diff command with python subprocess module. The problem is that I must compare file and stream without creating tempopary file. I thought about using named pipes via os.mkfifo method, but didn't reach any good result. Please, can you write a simple example on how to solve this stuff? I tried like so: fifo = 'pipe' os.mkfifo(fifo) op = popen('cat ', fifo) print >> open(fifo, 'w'), output os.unlink(fifo) proc = Popen(['diff', '-u', dumpfile], stdin=op, stdout=PIPE) but it seems like diff doesn't see the second argument.
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