suppress DeprecationWarning because of asyncore import

CREDITS

@@ -206,7 +206,10 @@ E: git@torypages.com
 C: Canada
 D: Command line argument enhancements
 
-
 N: Tahir Ijaz
 W: https://github.com/tahirijaz24
 D: issue 201, 435
+
+N: Sandro
+W: https://github.com/penguinpee
+D: issue 637

HISTORY.rst

@@ -6,6 +6,8 @@ Version: 2.0.0 - (IN DEVELOPMENT)
 **Enhancements**
 
 * #629: removed Python 2.7 support.
+* #637: remove copies of asyncore.py and asynchat.py. Use backports from PYPI
+  instead.  (patch by @penguinpee)
 
 **Notes about backward compatibility**
 

pyftpdlib/ioloop.py

@@ -56,8 +56,6 @@ def handle_accepted(self, sock, addr):
 IOLoop.instance().loop()
 """
 
-import asynchat
-import asyncore
 import errno
 import heapq
 import os
@@ -67,13 +65,19 @@ def handle_accepted(self, sock, addr):
 import threading
 import time
 import traceback
+import warnings
 
 from .log import config_logging
 from .log import debug
 from .log import is_logging_configured
 from .log import logger
 
 
+with warnings.catch_warnings():
+    warnings.simplefilter('ignore', DeprecationWarning)
+    import asynchat
+    import asyncore
+
 timer = getattr(time, 'monotonic', time.time)
 _read = asyncore.read
 _write = asyncore.write

setup.py

@@ -107,7 +107,7 @@ def main():
         install_requires=[
             "pyasyncore;python_version>='3.12'",
             "pyasynchat;python_version>='3.12'",
-            ],
+        ],
         extras_require=extras_require,
         classifiers=[
             'Development Status :: 5 - Production/Stable',