New submission from Christopher Jefferson <ch...@bubblescope.net>: I wandered across subprocess.call as it was mentioned as a replacement for os.system. The following large warning is attached to it:
Warning Like Popen.wait(), this will deadlock if the child process generates enough output to a stdout or stderr pipe such that it blocks waiting for the OS pipe buffer to accept more data. This scared my off completely, and I assumed the function was simply broken, as I assumed "stdout pipe" just meant that wherever stdout was sent by default. I now believe this warning only applies if 'stdout=PIPE', or similar, is used explicitally. Could this warning be better worded, perhaps adding "if stdout or stderr are explicitly redirected", as in: Warning Like Popen.wait(), if stdout or stderr are explicitly redirected this will deadlock if the child process generates enough output to a stdout or stderr pipe such that it blocks waiting for the OS pipe buffer to accept more data. ---------- assignee: georg.brandl components: Documentation messages: 94297 nosy: azumanga, georg.brandl severity: normal status: open title: Unclear warning for subprocess.call versions: Python 3.1 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue7177> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
