Re-organize directory structure (#4971)

See discussion in #2491

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

stdlib/telnetlib.pyi

@@ -0,0 +1,115 @@
+import socket
+import sys
+from typing import Any, Callable, Match, Optional, Pattern, Sequence, Tuple, Union
+
+DEBUGLEVEL: int
+TELNET_PORT: int
+
+IAC: bytes
+DONT: bytes
+DO: bytes
+WONT: bytes
+WILL: bytes
+theNULL: bytes
+
+SE: bytes
+NOP: bytes
+DM: bytes
+BRK: bytes
+IP: bytes
+AO: bytes
+AYT: bytes
+EC: bytes
+EL: bytes
+GA: bytes
+SB: bytes
+
+BINARY: bytes
+ECHO: bytes
+RCP: bytes
+SGA: bytes
+NAMS: bytes
+STATUS: bytes
+TM: bytes
+RCTE: bytes
+NAOL: bytes
+NAOP: bytes
+NAOCRD: bytes
+NAOHTS: bytes
+NAOHTD: bytes
+NAOFFD: bytes
+NAOVTS: bytes
+NAOVTD: bytes
+NAOLFD: bytes
+XASCII: bytes
+LOGOUT: bytes
+BM: bytes
+DET: bytes
+SUPDUP: bytes
+SUPDUPOUTPUT: bytes
+SNDLOC: bytes
+TTYPE: bytes
+EOR: bytes
+TUID: bytes
+OUTMRK: bytes
+TTYLOC: bytes
+VT3270REGIME: bytes
+X3PAD: bytes
+NAWS: bytes
+TSPEED: bytes
+LFLOW: bytes
+LINEMODE: bytes
+XDISPLOC: bytes
+OLD_ENVIRON: bytes
+AUTHENTICATION: bytes
+ENCRYPT: bytes
+NEW_ENVIRON: bytes
+
+TN3270E: bytes
+XAUTH: bytes
+CHARSET: bytes
+RSP: bytes
+COM_PORT_OPTION: bytes
+SUPPRESS_LOCAL_ECHO: bytes
+TLS: bytes
+KERMIT: bytes
+SEND_URL: bytes
+FORWARD_X: bytes
+PRAGMA_LOGON: bytes
+SSPI_LOGON: bytes
+PRAGMA_HEARTBEAT: bytes
+EXOPL: bytes
+NOOPT: bytes
+
+class Telnet:
+    host: Optional[str]  # undocumented
+    def __init__(self, host: Optional[str] = ..., port: int = ..., timeout: int = ...) -> None: ...
+    def open(self, host: str, port: int = ..., timeout: int = ...) -> None: ...
+    def msg(self, msg: str, *args: Any) -> None: ...
+    def set_debuglevel(self, debuglevel: int) -> None: ...
+    def close(self) -> None: ...
+    def get_socket(self) -> socket.socket: ...
+    def fileno(self) -> int: ...
+    def write(self, buffer: bytes) -> None: ...
+    def read_until(self, match: bytes, timeout: Optional[int] = ...) -> bytes: ...
+    def read_all(self) -> bytes: ...
+    def read_some(self) -> bytes: ...
+    def read_very_eager(self) -> bytes: ...
+    def read_eager(self) -> bytes: ...
+    def read_lazy(self) -> bytes: ...
+    def read_very_lazy(self) -> bytes: ...
+    def read_sb_data(self) -> bytes: ...
+    def set_option_negotiation_callback(self, callback: Optional[Callable[[socket.socket, bytes, bytes], Any]]) -> None: ...
+    def process_rawq(self) -> None: ...
+    def rawq_getchar(self) -> bytes: ...
+    def fill_rawq(self) -> None: ...
+    def sock_avail(self) -> bool: ...
+    def interact(self) -> None: ...
+    def mt_interact(self) -> None: ...
+    def listener(self) -> None: ...
+    def expect(
+        self, list: Sequence[Union[Pattern[bytes], bytes]], timeout: Optional[int] = ...
+    ) -> Tuple[int, Optional[Match[bytes]], bytes]: ...
+    if sys.version_info >= (3, 6):
+        def __enter__(self) -> Telnet: ...
+        def __exit__(self, type: Any, value: Any, traceback: Any) -> None: ...