Add various missing os constants (#6753)

stdlib/os/__init__.pyi

@@ -90,6 +90,9 @@ if sys.platform != "win32":
     P_PGID: int
     P_ALL: int
 
+    if sys.platform == "linux" and sys.version_info >= (3, 9):
+        P_PIDFD: int
+
     WEXITED: int
     WSTOPPED: int
     WNOWAIT: int
@@ -99,6 +102,10 @@ if sys.platform != "win32":
     CLD_TRAPPED: int
     CLD_CONTINUED: int
 
+    if sys.version_info >= (3, 9):
+        CLD_KILLED: int
+        CLD_STOPPED: int
+
     # TODO: SCHED_RESET_ON_FORK not available on darwin?
     # TODO: SCHED_BATCH and SCHED_IDLE are linux only?
     SCHED_OTHER: int  # some flavors of Unix
@@ -173,14 +180,14 @@ if sys.platform != "win32" and sys.platform != "darwin":
     ST_NODEV: int
     ST_NODIRATIME: int
     ST_NOEXEC: int
-    ST_NOSUID: int
-    ST_RDONLY: int
     ST_RELATIME: int
     ST_SYNCHRONOUS: int
     ST_WRITE: int
 
 if sys.platform != "win32":
     NGROUPS_MAX: int
+    ST_NOSUID: int
+    ST_RDONLY: int
 
 curdir: str
 pardir: str
@@ -621,6 +628,16 @@ if sys.platform != "win32":
         def posix_fadvise(fd: int, offset: int, length: int, advice: int) -> None: ...
     def pread(__fd: int, __length: int, __offset: int) -> bytes: ...
     def pwrite(__fd: int, __buffer: bytes, __offset: int) -> int: ...
+    if sys.platform != "darwin":
+        if sys.version_info >= (3, 10):
+            RWF_APPEND: int  # docs say available on 3.7+, stubtest says otherwise
+        if sys.version_info >= (3, 7):
+            def preadv(__fd: int, __buffers: Iterable[bytes], __offset: int, __flags: int = ...) -> int: ...
+            def pwritev(__fd: int, __buffers: Iterable[bytes], __offset: int, __flags: int = ...) -> int: ...
+            RWF_DSYNC: int
+            RWF_SYNC: int
+            RWF_HIPRI: int
+            RWF_NOWAIT: int
     @overload
     def sendfile(out_fd: int, in_fd: int, offset: int | None, count: int) -> int: ...
     @overload
@@ -931,6 +948,9 @@ else:
             setsigdef: Iterable[int] = ...,
             scheduler: tuple[Any, sched_param] | None = ...,
         ) -> int: ...
+        POSIX_SPAWN_OPEN: int
+        POSIX_SPAWN_CLOSE: int
+        POSIX_SPAWN_DUP2: int
 
 if sys.platform != "win32":
     @final

stdlib/posix.pyi

@@ -70,6 +70,8 @@ if sys.platform != "win32":
         SCHED_SPORADIC as SCHED_SPORADIC,
         SEEK_DATA as SEEK_DATA,
         SEEK_HOLE as SEEK_HOLE,
+        ST_NOSUID as ST_NOSUID,
+        ST_RDONLY as ST_RDONLY,
         TMP_MAX as TMP_MAX,
         W_OK as W_OK,
         WCONTINUED as WCONTINUED,
@@ -264,10 +266,22 @@ if sys.platform != "win32":
             waitid_result as waitid_result,
         )
 
+        if sys.version_info >= (3, 10):
+            from os import RWF_APPEND as RWF_APPEND
+
     if sys.version_info >= (3, 9):
-        from os import waitstatus_to_exitcode as waitstatus_to_exitcode
+        from os import CLD_KILLED as CLD_KILLED, CLD_STOPPED as CLD_STOPPED, waitstatus_to_exitcode as waitstatus_to_exitcode
+
+        if sys.platform == "linux":
+            from os import P_PIDFD as P_PIDFD
     if sys.version_info >= (3, 8):
-        from os import posix_spawn as posix_spawn, posix_spawnp as posix_spawnp
+        from os import (
+            POSIX_SPAWN_CLOSE as POSIX_SPAWN_CLOSE,
+            POSIX_SPAWN_DUP2 as POSIX_SPAWN_DUP2,
+            POSIX_SPAWN_OPEN as POSIX_SPAWN_OPEN,
+            posix_spawn as posix_spawn,
+            posix_spawnp as posix_spawnp,
+        )
 
         if sys.platform == "linux":
             from os import (
@@ -293,6 +307,16 @@ if sys.platform != "win32":
     if sys.version_info >= (3, 7):
         from os import register_at_fork as register_at_fork
 
+        if sys.platform != "darwin":
+            from os import (
+                RWF_DSYNC as RWF_DSYNC,
+                RWF_HIPRI as RWF_HIPRI,
+                RWF_NOWAIT as RWF_NOWAIT,
+                RWF_SYNC as RWF_SYNC,
+                preadv as preadv,
+                pwritev as pwritev,
+            )
+
     # Not same as os.environ or os.environb
     # Because of this variable, we can't do "from posix import *" in os/__init__.pyi
     environ: dict[bytes, bytes]

tests/stubtest_allowlists/darwin-py310.txt

@@ -5,15 +5,4 @@ curses.color_pair
 # Exists at runtime, but missing from stubs
 asyncio.PidfdChildWatcher
 asyncio.unix_events.PidfdChildWatcher
-os.CLD_KILLED
-os.CLD_STOPPED
-os.POSIX_SPAWN_CLOSE
-os.POSIX_SPAWN_DUP2
-os.POSIX_SPAWN_OPEN
-
 mmap.MADV_FREE
-posix.CLD_KILLED
-posix.CLD_STOPPED
-posix.POSIX_SPAWN_CLOSE
-posix.POSIX_SPAWN_DUP2
-posix.POSIX_SPAWN_OPEN

tests/stubtest_allowlists/darwin-py38.txt

@@ -1,11 +1,4 @@
 _?curses.A_ITALIC
 
 # Exists at runtime, but missing from stubs
-os.POSIX_SPAWN_CLOSE
-os.POSIX_SPAWN_DUP2
-os.POSIX_SPAWN_OPEN
-
 mmap.MADV_FREE
-posix.POSIX_SPAWN_CLOSE
-posix.POSIX_SPAWN_DUP2
-posix.POSIX_SPAWN_OPEN

tests/stubtest_allowlists/darwin-py39.txt

@@ -3,15 +3,4 @@ _?curses.A_ITALIC
 # Exists at runtime, but missing from stubs
 asyncio.PidfdChildWatcher
 asyncio.unix_events.PidfdChildWatcher
-os.CLD_KILLED
-os.CLD_STOPPED
-os.POSIX_SPAWN_CLOSE
-os.POSIX_SPAWN_DUP2
-os.POSIX_SPAWN_OPEN
-
 mmap.MADV_FREE
-posix.CLD_KILLED
-posix.CLD_STOPPED
-posix.POSIX_SPAWN_CLOSE
-posix.POSIX_SPAWN_DUP2
-posix.POSIX_SPAWN_OPEN

tests/stubtest_allowlists/darwin.txt

@@ -46,8 +46,6 @@ distutils.msvccompiler.MSVCCompiler.get_msvc_paths
 distutils.msvccompiler.MSVCCompiler.set_path_env_var
 distutils.msvccompiler.MacroExpander
 mimetypes.MimeTypes.read_windows_registry
-os.ST_NOSUID
-os.ST_RDONLY
 selectors.DefaultSelector.fileno
 socket.AddressInfo.AI_DEFAULT
 socket.AddressInfo.AI_MASK

tests/stubtest_allowlists/linux-py310.txt

@@ -21,20 +21,9 @@ select.epoll.register
 asyncio.PidfdChildWatcher
 asyncio.unix_events.PidfdChildWatcher
 mmap.MAP_POPULATE
-os.CLD_KILLED
-os.CLD_STOPPED
 os.EFD_CLOEXEC
 os.EFD_NONBLOCK
 os.EFD_SEMAPHORE
-os.POSIX_SPAWN_CLOSE
-os.POSIX_SPAWN_DUP2
-os.POSIX_SPAWN_OPEN
-os.P_PIDFD
-os.RWF_APPEND
-os.RWF_DSYNC
-os.RWF_HIPRI
-os.RWF_NOWAIT
-os.RWF_SYNC
 os.SPLICE_F_MORE
 os.SPLICE_F_MOVE
 os.SPLICE_F_NONBLOCK
@@ -43,22 +32,13 @@ os.eventfd
 os.eventfd_read
 os.eventfd_write
 os.pidfd_open
-os.preadv
-os.pwritev
 os.splice
-posix.CLD_KILLED
-posix.CLD_STOPPED
 posix.EFD_[A-Z]+
-posix.P_PIDFD
-posix.POSIX_SPAWN_[A-Z0-9]+
-posix.RWF_[A-Z]+
 posix.SPLICE_[A-Z_]+
 posix.copy_file_range
 posix.eventfd
 posix.eventfd_read
 posix.eventfd_write
 posix.pidfd_open
-posix.preadv
-posix.pwritev
 posix.splice
 time.pthread_getcpuclockid

tests/stubtest_allowlists/linux-py37.txt

@@ -3,13 +3,4 @@ ftplib.FTP.trust_server_pasv_ipv4_address  # Dangerous to use, intentionally und
 pwd.getpwnam
 
 # Exists at runtime, but missing from stubs
-os.RWF_DSYNC
-os.RWF_HIPRI
-os.RWF_NOWAIT
-os.RWF_SYNC
-os.preadv
-os.pwritev
-posix.RWF_[A-Z]+
-posix.preadv
-posix.pwritev
 time.pthread_getcpuclockid

tests/stubtest_allowlists/linux-py38.txt

@@ -1,19 +1,6 @@
 select.epoll.register
 
 # Exists at runtime, but missing from stubs
-os.POSIX_SPAWN_CLOSE
-os.POSIX_SPAWN_DUP2
-os.POSIX_SPAWN_OPEN
-os.RWF_DSYNC
-os.RWF_HIPRI
-os.RWF_NOWAIT
-os.RWF_SYNC
 os.copy_file_range
-os.preadv
-os.pwritev
-posix.POSIX_SPAWN_[A-Z0-9]+
-posix.RWF_[A-Z]+
 posix.copy_file_range
-posix.preadv
-posix.pwritev
 time.pthread_getcpuclockid

tests/stubtest_allowlists/linux-py39.txt

@@ -4,27 +4,8 @@ select.epoll.register
 # Exists at runtime, but missing from stubs
 asyncio.PidfdChildWatcher
 asyncio.unix_events.PidfdChildWatcher
-os.CLD_KILLED
-os.CLD_STOPPED
-os.POSIX_SPAWN_CLOSE
-os.POSIX_SPAWN_DUP2
-os.POSIX_SPAWN_OPEN
-os.P_PIDFD
-os.RWF_DSYNC
-os.RWF_HIPRI
-os.RWF_NOWAIT
-os.RWF_SYNC
 os.copy_file_range
 os.pidfd_open
-os.preadv
-os.pwritev
-posix.CLD_KILLED
-posix.CLD_STOPPED
-posix.P_PIDFD
-posix.POSIX_SPAWN_[A-Z0-9]+
-posix.RWF_[A-Z]+
 posix.copy_file_range
 posix.pidfd_open
-posix.preadv
-posix.pwritev
 time.pthread_getcpuclockid