From c35b812e773493f88631cd1e8be65d3a7c3b47ae Mon Sep 17 00:00:00 2001 From: "Jason R. Coombs" Date: Wed, 17 Dec 2025 02:38:00 -0500 Subject: [PATCH] gh-142836: Avoid /proc fd pipes on Solaris (#142853) --- Lib/test/test_pdb.py | 13 ++++++++++++- .../2025-12-17-02-02-57.gh-issue-142836.mR-fvK.rst | 1 + 2 files changed, 13 insertions(+), 1 deletion(-) create mode 100644 Misc/NEWS.d/next/Tests/2025-12-17-02-02-57.gh-issue-142836.mR-fvK.rst diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py index f4c870036a7a..5cba34ff8bad 100644 --- a/Lib/test/test_pdb.py +++ b/Lib/test/test_pdb.py @@ -3563,10 +3563,22 @@ class PdbTestCase(unittest.TestCase): def _fd_dir_for_pipe_targets(self): """Return a directory exposing live file descriptors, if any.""" + return self._proc_fd_dir() or self._dev_fd_dir() + + def _proc_fd_dir(self): + """Return /proc-backed fd dir when it can be used for pipes.""" + # GH-142836: Opening /proc/self/fd entries for pipes raises EACCES on + # Solaris, so prefer other mechanisms there. + if sys.platform.startswith("sunos"): + return None + proc_fd = "/proc/self/fd" if os.path.isdir(proc_fd) and os.path.exists(os.path.join(proc_fd, '0')): return proc_fd + return None + def _dev_fd_dir(self): + """Return /dev-backed fd dir when usable.""" dev_fd = "/dev/fd" if os.path.isdir(dev_fd) and os.path.exists(os.path.join(dev_fd, '0')): if sys.platform.startswith("freebsd"): @@ -3576,7 +3588,6 @@ class PdbTestCase(unittest.TestCase): except FileNotFoundError: return None return dev_fd - return None def test_find_function_empty_file(self): diff --git a/Misc/NEWS.d/next/Tests/2025-12-17-02-02-57.gh-issue-142836.mR-fvK.rst b/Misc/NEWS.d/next/Tests/2025-12-17-02-02-57.gh-issue-142836.mR-fvK.rst new file mode 100644 index 000000000000..dd84ce9839ff --- /dev/null +++ b/Misc/NEWS.d/next/Tests/2025-12-17-02-02-57.gh-issue-142836.mR-fvK.rst @@ -0,0 +1 @@ +Accommodated Solaris in ``test_pdb.test_script_target_anonymous_pipe``. -- 2.47.3