Re-organize directory structure (#4971)

See discussion in #2491

Co-authored-by: Ivan Levkivskyi <ilevkivskyi@dropbox.com>

stdlib/select.pyi

@@ -0,0 +1,152 @@
+import sys
+from _typeshed import FileDescriptorLike
+from types import TracebackType
+from typing import Any, Iterable, List, Optional, Tuple, Type
+
+if sys.platform != "win32":
+    PIPE_BUF: int
+    POLLERR: int
+    POLLHUP: int
+    POLLIN: int
+    POLLMSG: int
+    POLLNVAL: int
+    POLLOUT: int
+    POLLPRI: int
+    POLLRDBAND: int
+    POLLRDNORM: int
+    POLLWRBAND: int
+    POLLWRNORM: int
+
+class poll:
+    def __init__(self) -> None: ...
+    def register(self, fd: FileDescriptorLike, eventmask: int = ...) -> None: ...
+    def modify(self, fd: FileDescriptorLike, eventmask: int) -> None: ...
+    def unregister(self, fd: FileDescriptorLike) -> None: ...
+    def poll(self, timeout: Optional[float] = ...) -> List[Tuple[int, int]]: ...
+
+def select(
+    __rlist: Iterable[Any], __wlist: Iterable[Any], __xlist: Iterable[Any], __timeout: Optional[float] = ...
+) -> Tuple[List[Any], List[Any], List[Any]]: ...
+
+if sys.version_info >= (3, 3):
+    error = OSError
+else:
+    class error(Exception): ...
+
+if sys.platform != "linux" and sys.platform != "win32":
+    # BSD only
+    class kevent(object):
+        data: Any
+        fflags: int
+        filter: int
+        flags: int
+        ident: int
+        udata: Any
+        def __init__(
+            self,
+            ident: FileDescriptorLike,
+            filter: int = ...,
+            flags: int = ...,
+            fflags: int = ...,
+            data: Any = ...,
+            udata: Any = ...,
+        ) -> None: ...
+    # BSD only
+    class kqueue(object):
+        closed: bool
+        def __init__(self) -> None: ...
+        def close(self) -> None: ...
+        def control(
+            self, __changelist: Optional[Iterable[kevent]], __maxevents: int, __timeout: Optional[float] = ...
+        ) -> List[kevent]: ...
+        def fileno(self) -> int: ...
+        @classmethod
+        def fromfd(cls, __fd: FileDescriptorLike) -> kqueue: ...
+    KQ_EV_ADD: int
+    KQ_EV_CLEAR: int
+    KQ_EV_DELETE: int
+    KQ_EV_DISABLE: int
+    KQ_EV_ENABLE: int
+    KQ_EV_EOF: int
+    KQ_EV_ERROR: int
+    KQ_EV_FLAG1: int
+    KQ_EV_ONESHOT: int
+    KQ_EV_SYSFLAGS: int
+    KQ_FILTER_AIO: int
+    KQ_FILTER_NETDEV: int
+    KQ_FILTER_PROC: int
+    KQ_FILTER_READ: int
+    KQ_FILTER_SIGNAL: int
+    KQ_FILTER_TIMER: int
+    KQ_FILTER_VNODE: int
+    KQ_FILTER_WRITE: int
+    KQ_NOTE_ATTRIB: int
+    KQ_NOTE_CHILD: int
+    KQ_NOTE_DELETE: int
+    KQ_NOTE_EXEC: int
+    KQ_NOTE_EXIT: int
+    KQ_NOTE_EXTEND: int
+    KQ_NOTE_FORK: int
+    KQ_NOTE_LINK: int
+    if sys.platform != "darwin":
+        KQ_NOTE_LINKDOWN: int
+        KQ_NOTE_LINKINV: int
+        KQ_NOTE_LINKUP: int
+    KQ_NOTE_LOWAT: int
+    KQ_NOTE_PCTRLMASK: int
+    KQ_NOTE_PDATAMASK: int
+    KQ_NOTE_RENAME: int
+    KQ_NOTE_REVOKE: int
+    KQ_NOTE_TRACK: int
+    KQ_NOTE_TRACKERR: int
+    KQ_NOTE_WRITE: int
+
+if sys.platform == "linux":
+    class epoll(object):
+        if sys.version_info >= (3, 3):
+            def __init__(self, sizehint: int = ..., flags: int = ...) -> None: ...
+        else:
+            def __init__(self, sizehint: int = ...) -> None: ...
+        if sys.version_info >= (3, 4):
+            def __enter__(self) -> epoll: ...
+            def __exit__(
+                self,
+                exc_type: Optional[Type[BaseException]] = ...,
+                exc_val: Optional[BaseException] = ...,
+                exc_tb: Optional[TracebackType] = ...,
+            ) -> None: ...
+        def close(self) -> None: ...
+        closed: bool
+        def fileno(self) -> int: ...
+        def register(self, fd: FileDescriptorLike, eventmask: int = ...) -> None: ...
+        def modify(self, fd: FileDescriptorLike, eventmask: int) -> None: ...
+        def unregister(self, fd: FileDescriptorLike) -> None: ...
+        def poll(self, timeout: Optional[float] = ..., maxevents: int = ...) -> List[Tuple[int, int]]: ...
+        @classmethod
+        def fromfd(cls, __fd: FileDescriptorLike) -> epoll: ...
+    EPOLLERR: int
+    EPOLLET: int
+    EPOLLHUP: int
+    EPOLLIN: int
+    EPOLLMSG: int
+    EPOLLONESHOT: int
+    EPOLLOUT: int
+    EPOLLPRI: int
+    EPOLLRDBAND: int
+    EPOLLRDNORM: int
+    EPOLLWRBAND: int
+    EPOLLWRNORM: int
+    EPOLL_RDHUP: int
+
+if sys.platform != "linux" and sys.platform != "darwin" and sys.platform != "win32":
+    if sys.version_info >= (3, 3):
+        # Solaris only
+        class devpoll:
+            if sys.version_info >= (3, 4):
+                def close(self) -> None: ...
+                closed: bool
+                def fileno(self) -> int: ...
+            def register(self, fd: FileDescriptorLike, eventmask: int = ...) -> None: ...
+            def modify(self, fd: FileDescriptorLike, eventmask: int = ...) -> None: ...
+            def unregister(self, fd: FileDescriptorLike) -> None: ...
+            def poll(self, timeout: Optional[float] = ...) -> List[Tuple[int, int]]: ...