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python Programming Glossary: os.fdopenhttp://stackoverflow.com/questions/107705/python-output-buffering after every write Set PYTHONUNBUFFERED env var sys.stdout os.fdopen sys.stdout.fileno 'w' 0 Is there any other way to set some global..
Python subprocess readlines() hangs http://stackoverflow.com/questions/12419198/python-subprocess-readlines-hangs shell True stdout slave stderr slave close_fds True stdout os.fdopen master 'r' 0 while proc.poll is None data stdout.readline if..
Python C program subprocess hangs at “for line in iter” http://stackoverflow.com/questions/20503671/python-c-program-subprocess-hangs-at-for-line-in-iter process' exit # code is similar to _copy from pty.py with os.fdopen master_fd 'r b' 0 as master input_fds master sys.stdin while..
Setting smaller buffer size for sys.stdin? http://stackoverflow.com/questions/3670323/setting-smaller-buffer-size-for-sys-stdin as an existing one and possibly different buffering using os.fdopen . I.e. import os import sys newin os.fdopen sys.stdin.fileno.. using os.fdopen . I.e. import os import sys newin os.fdopen sys.stdin.fileno 'r' 100 should bind newin to the name of a..
How do I prevent a C shared library to print on stdout in python? http://stackoverflow.com/questions/5081657/how-do-i-prevent-a-c-shared-library-to-print-on-stdout-in-python os.dup2 to.fileno fd # fd writes to 'to' file sys.stdout os.fdopen fd 'w' # Python writes to fd with os.fdopen os.dup fd 'w' as.. sys.stdout os.fdopen fd 'w' # Python writes to fd with os.fdopen os.dup fd 'w' as old_stdout with open to 'w' as file _redirect_stdout..
Python Run a daemon sub-process & read stdout http://stackoverflow.com/questions/5411780/python-run-a-daemon-sub-process-read-stdout stdin PIPE stdout slave stderr slave close_fds True stdout os.fdopen master print stdout.readline print stdout.readline There are..
Write file with specific permissions in Python http://stackoverflow.com/questions/5624359/write-file-with-specific-permissions-in-python ' path to file' os.O_WRONLY int 0600 8 myFileObject os.fdopen fd myFileObject.write ... myFileObject.close Ideally I'd like.. close the file even though it was open with os.open . with os.fdopen os.open ' path to file' os.O_WRONLY os.O_CREAT 0600 'w' as handle..
How do I duplicate sys.stdout to a log file in python? http://stackoverflow.com/questions/616645/how-do-i-duplicate-sys-stdout-to-a-log-file-in-python 'w' 0 # re open stdout without buffering sys.stdout os.fdopen sys.stdout.fileno 'w' 0 # redirect stdout and stderr to the.. ### my broken solution so se open a.log 'w' 0 sys.stdout os.fdopen sys.stdout.fileno 'w' 0 os.dup2 sys.stdout.fileno so.fileno.. import subprocess os sys # Unbuffer output sys.stdout os.fdopen sys.stdout.fileno 'w' 0 tee subprocess.Popen tee log.txt stdin..
Problem with a Python program using os.pipe and os.fork() http://stackoverflow.com/questions/871447/problem-with-a-python-program-using-os-pipe-and-os-fork I convert the returns from pipe into file objects with os.fdopen . The problem I'm having is this The process successfully forks.. code that should work import os sys time r w os.pipe r w os.fdopen r 'r' 0 os.fdopen w 'w' 0 pid os.fork if pid # Parent w.close.. work import os sys time r w os.pipe r w os.fdopen r 'r' 0 os.fdopen w 'w' 0 pid os.fork if pid # Parent w.close while 1 data r.readline..
Redirect stdout from python for C calls http://stackoverflow.com/questions/8804893/redirect-stdout-from-python-for-c-calls 6. os.dup2 devnull 1 7. os.close devnull 8. sys.stdout os.fdopen newstdout 'w' Also I would like to restore the stdout as it.. doing What is dev null What is line 8 doing sys.stdout os.fdopen newstdout 'w' How can I store the stdout in a StringIO object.. be able # to print to stdout within python sys.stdout os.fdopen newstdout 'w' One important thing to note is that a process..
unbuffered stdout in python (as in python -u) from within the program [duplicate] http://stackoverflow.com/questions/881696/unbuffered-stdout-in-python-as-in-python-u-from-within-the-program best I could come up with import os import sys unbuffered os.fdopen sys.stdout.fileno 'w' 0 unbuffered.write 'test' test sys.stdout..
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