Blog: 2024-02-13: Difference between revisions
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(Created page with "How does this work but it doesn't seem to when you use the read and write methods on the io objects? <pre> proc = subprocess.Popen(['bc'], stdin=subprocess.PIPE, stdout=subprocess.PIPE) os.write(proc.stdin.fileno(), b'100+200\n') print(os.read(proc.stdout.fileno(), 4096)) </pre>") |
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os.write(proc.stdin.fileno(), b'100+200\n') |
os.write(proc.stdin.fileno(), b'100+200\n') |
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print(os.read(proc.stdout.fileno(), 4096)) |
print(os.read(proc.stdout.fileno(), 4096)) |
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</pre>https://stackoverflow.com/questions/39899074/communicate-multiple-times-with-a-subprocess-in-python |
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</pre> |
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Revision as of 01:59, 13 February 2024
How does this work but it doesn't seem to when you use the read and write methods on the io objects?
proc = subprocess.Popen(['bc'], stdin=subprocess.PIPE, stdout=subprocess.PIPE) os.write(proc.stdin.fileno(), b'100+200\n') print(os.read(proc.stdout.fileno(), 4096))
https://stackoverflow.com/questions/39899074/communicate-multiple-times-with-a-subprocess-in-python