STINNER Victor <victor.stin...@haypocalc.com> added the comment: r55334 removed popen2, popen3 and popen4 from the os module from Python 3 (before the 3.0 release), but not os.popen.
Python 3.2 has now convenience functions in subprocess to get the output of a program: - check_output() - getstatusoutput() - getoutput() They have a better API then os.popen because you can: - avoid the shell process and use a list of arguments (to avoid ugly shell quoting using ' or ") - change the current directory - decide if signal are restored or not - get easily the exit code (not >> 8 magical operation on the close() output) - use a different executable name - pass file descriptor - etc. I think that it's time to move forward and remove os.popen(). But... there are 66 calls to os.popen() in: Doc/tools/docutils/writers/odf_odt Lib Lib/ctypes Lib/distutils Lib/distutils/command Lib/distutils/tests Lib/idlelib Lib/multiprocessing Lib/pydoc_data Lib/test Lib/tkinter/test/test_tkinter Mac/BuildScript Mac/Tools PCbuild PC/VC6 PC/VS7.1 PC/VS8.0 Tools/msi Tools/scripts So we can maybe start with: - Restore the documentation - Mark this function as deprecated in the doc - Emit a deprecating warning in the code - Start to replace os.popen() with subprocess in Python And then maybe never drop it :-) Note: even subprocess.getstatusoutput() is implemented using os.popen()... ---------- nosy: +haypo _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue6490> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
