Simplify IMAP4_TLS class and fix Python 3.14+ compatibility

.github/workflows/main.yml

@@ -21,6 +21,7 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13"
+          - "3.14"
           - "pypy-3.9"
     steps:
     - uses: actions/checkout@v3

README.rst

@@ -5,7 +5,7 @@ library.
 
 =========================  ========================================
 Current version            3.0.1
-Supported Python versions  3.8 - 3.13
+Supported Python versions  3.8 - 3.14
 License                    New BSD
 Project home               https://github.com/mjs/imapclient/
 PyPI                       https://pypi.python.org/pypi/IMAPClient

doc/src/index.rst

@@ -30,7 +30,7 @@ explains IMAP in detail. Other RFCs also apply to various extensions
 to the base protocol. These are referred to in the documentation below
 where relevant.
 
-Python versions 3.8 through 3.13 are officially supported.
+Python versions 3.8 through 3.14 are officially supported.
 
 Getting Started
 ---------------

imapclient/tls.py

@@ -8,7 +8,6 @@
 """
 
 import imaplib
-import io
 import socket
 import ssl
 from typing import Optional, TYPE_CHECKING
@@ -35,34 +34,15 @@ class IMAP4_TLS(imaplib.IMAP4):
     def __init__(
         self,
         host: str,
-        port: int,
-        ssl_context: Optional[ssl.SSLContext],
+        port: int = 993,
+        ssl_context: Optional[ssl.SSLContext] = None,
         timeout: Optional[float] = None,
     ):
         self.ssl_context = ssl_context
         self._timeout = timeout
-        imaplib.IMAP4.__init__(self, host, port)
-        self.file: io.BufferedReader
+        super().__init__(host, port)
 
-    def open(
-        self, host: str = "", port: int = 993, timeout: Optional[float] = None
-    ) -> None:
-        self.host = host
-        self.port = port
-        sock = socket.create_connection(
-            (host, port), timeout if timeout is not None else self._timeout
-        )
-        self.sock = wrap_socket(sock, self.ssl_context, host)
-        self.file = self.sock.makefile("rb")
+    def _create_socket(self, timeout: Optional[float]) -> socket.socket:
+        sock = socket.create_connection((self.host, self.port), timeout=timeout)
 
-    def read(self, size: int) -> bytes:
-        return self.file.read(size)
-
-    def readline(self) -> bytes:
-        return self.file.readline()
-
-    def send(self, data: "Buffer") -> None:
-        self.sock.sendall(data)
-
-    def shutdown(self) -> None:
-        imaplib.IMAP4.shutdown(self)
+        return wrap_socket(sock, self.ssl_context, self.host)