[issue5898] Hang in Popen.wait() when another process has been created

Terry J. Reedy added the comment: Closing because OP did not disagree with Wong's explanation of why not a bug. If someone disagreea and wants to reopen, this should be verified and marked for a current version (2.7+) -- nosy: +tjreedy resolution: -> invalid status: open -> closed _

[issue5898] Hang in Popen.wait() when another process has been created

Steven K. Wong added the comment: See this related issue: http://bugs.python.org/issue7213 -- ___ Python tracker ___ ___ Python-bugs-l

[issue5898] Hang in Popen.wait() when another process has been created

Steven K. Wong added the comment: See this related issue: http://bugs.python.org/issue7448 -- ___ Python tracker ___ ___ Python-bugs-l

[issue5898] Hang in Popen.wait() when another process has been created

Steven K. Wong added the comment: I think the hang is not a bug. Take a look at the Popen documentation on close_fds. If you specify close_fds=True when creating proc2, the hang will not happen when you remove the "proc2.stdin.close()" line. -- nosy: +steven.k.wong __

[issue5898] Hang in Popen.wait() when another process has been created

François Granade added the comment: Note that I use this wait(), otherwise, on CygWin, proc1 does not properly dies, and leaves opened (undeletable - that's windows !) files around -- ___ Python tracker ___

[issue5898] Hang in Popen.wait() when another process has been created

New submission from François Granade : If I remove the "proc2.stdin.close()" in the script below, the "proc1.wait()" will hang. Tested on MacOS, Linux, CygWin on 2.5.2 and 2.6. Is it a bug ? from subprocess import Popen, PIPE proc1 = Popen('cat -', shell=True, stdin=PIPE, stdout=PIPE) proc2 = Po