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gh-141659: Fix bad file descriptors from subprocess in AIX #141660

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Merged
merged 5 commits into from
Nov 19, 2025
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gh-141659: Fix bad file descriptors from subprocess in AIX #141660

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pythongh-141659: Fix bad file descriptor errors from subprocess on AIX
ayappanec Nov 17, 2025
c68cb8d
Add NEWS entry
ayappanec Nov 17, 2025
e527bcb
Fix trailing whitespaces
ayappanec Nov 17, 2025
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Fix NEWS entry
ayappanec Nov 17, 2025
790d9c3
Update Misc/NEWS.d/next/Core_and_Builtins/2025-11-17-08-16-30.gh-issu…
ayappanec Nov 18, 2025
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2025-11-17-08-16-30.gh-issue-141659.QNi9Aj.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix bad file descriptor errors from ``_posixsubprocess`` on AIX.
6 changes: 6 additions & 0 deletions Modules/_posixsubprocess.c
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Expand Up @@ -514,7 +514,13 @@ _close_open_fds_maybe_unsafe(int start_fd, int *fds_to_keep,
proc_fd_dir = NULL;
else
#endif
#if defined(_AIX)
char fd_path[PATH_MAX];
snprintf(fd_path, sizeof(fd_path), "/proc/%ld/fd", (long)getpid());
proc_fd_dir = opendir(fd_path);
#else
proc_fd_dir = opendir(FD_DIR);
#endif
if (!proc_fd_dir) {
/* No way to get a list of open fds. */
_close_range_except(start_fd, -1, fds_to_keep, fds_to_keep_len,
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