Drop support for Python 2

.github/workflows/python-package.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [2.7, 3.6, 3.7, 3.8, 3.9]
+        python-version: ['3.6', '3.7', '3.8', '3.9']
 
     steps:
     - uses: actions/checkout@v2
@@ -28,9 +28,9 @@ jobs:
     - name: Lint with flake8
       run: |
         flake8 slimta
-    - name: Type checking with pytype
+    - name: Type checking with pyright
       run: |
-        pytype -k
+        pyright slimta
     - name: Test with pytest
       run: |
         py.test --cov=slimta

CHANGELOG.md

@@ -1,10 +1,18 @@
 
 # Change Log
 
-## 4.1 - _Unreleased_
+## 5.0 - Change Logs have moved to [Releases][18]
+
+## 4.2 - 2021-02-14
+
+- New `handle_tls2(ssl_socket)` validator on [`SmtpValidators`][16].
+- Switch to [`select.poll()`][17] for DNS lookups.
+
+## 4.1 - 2020-10-29
 
 ### Added
 
+- [**Extension Consolidation**][15].
 - New [`create_listeners`][10] function for creating IP sockets on both IPv4
   and IPv6, if available.
 - New `mixin` functions in the [`proxyproto`][12] classes.
@@ -152,6 +160,10 @@
 [12]: http://slimta.org/en/latest/api/slimta.util.proxyproto.html
 [13]: http://slimta.org/en/latest/api/slimta.relay.smtp.static.html#slimta.relay.smtp.static.StaticLmtpRelay
 [14]: http://slimta.org/en/latest/api/slimta.relay.pipe.html
+[15]: https://www.slimta.org/blog/2020-10-30.html
+[16]: https://www.slimta.org/api/slimta.edge.smtp.html#slimta.edge.smtp.SmtpValidators
+[17]: https://docs.python.org/3/library/select.html#select.poll
+[18]: https://github.com/slimta/python-slimta/releases
 [3.0]: https://github.com/slimta/python-slimta/issues?q=milestone%3A3.0
 [3.1]: https://github.com/slimta/python-slimta/issues?q=milestone%3A3.1
 [3.2]: https://github.com/slimta/python-slimta/issues?q=milestone%3A3.2

README.md

@@ -14,13 +14,12 @@ can incorporate any protocol or policy, custom or built-in. An MTA built with
 Python's great community.
 
 The `python-slimta` project is released under the [MIT License][4]. It is
-tested for Python 2.7+ or 3.6+.
+tested for Python 3.6+.
 
 [![build](https://github.com/slimta/python-slimta/actions/workflows/python-package.yml/badge.svg)](https://github.com/slimta/python-slimta/actions/workflows/python-package.yml)
 [![PyPI](https://img.shields.io/pypi/v/python-slimta.svg)](https://pypi.python.org/pypi/python-slimta)
 [![PyPI](https://img.shields.io/pypi/pyversions/python-slimta.svg)](https://pypi.python.org/pypi/python-slimta)
 [![PyPI](https://img.shields.io/pypi/l/python-slimta.svg)](https://pypi.python.org/pypi/python-slimta)
-[![Flattr](http://api.flattr.com/button/flattr-badge-large.png)](https://flattr.com/submit/auto?user_id=icgood&url=https%3A%2F%2Fgithub.com%2Fslimta%2Fpython-slimta&title=python-slimta&language=python&tags=github&category=software)
 
 
 Getting Started

requirements-dev.txt

@@ -1,7 +1,7 @@
 pytest >= 4
 pytest-cov
-pytype
-mox3
+pyright
+pymox
 testfixtures
 flake8
 twine

setup.cfg

@@ -7,6 +7,10 @@ filterwarnings =
     ignore::DeprecationWarning
     ignore::PendingDeprecationWarning
 
+[flake8]
+per-file-ignores =
+    test/*: E501
+
 [coverage:report]
 exclude_lines =
   declare_namespace

setup.py

@@ -28,7 +28,7 @@
     license = f.read()
 
 setup(name='python-slimta',
-      version='4.2.1',
+      version='5.0.0',
       author='Ian Good',
       author_email='ian@icgood.net',
       description='Lightweight, asynchronous SMTP libraries.',
@@ -40,12 +40,9 @@
       packages=find_packages(),
       namespace_packages=['slimta'],
       install_requires=['gevent >= 1.1rc',
-                        'pysasl >= 0.4.0, < 0.5',
-                        'pycares < 3.0.0; python_version < "3.0"',
-                        'pycares >= 1; python_version >= "3.0"'],
-      extras_require={'spf': ['pyspf', 'py3dns; python_version >= "3.0"',
-                              'pydns; python_version < "3.0"',
-                              'ipaddr; python_version < "3.0"'],
+                        'pysasl >= 0.5.0',
+                        'pycares >= 1'],
+      extras_require={'spf': ['pyspf', 'py3dns'],
                       'redis': ['redis'],
                       'aws': ['boto'],
                       'disk': ['pyaio >= 0.4; platform_system == "Linux"']},
@@ -55,7 +52,6 @@
                    'Intended Audience :: Information Technology',
                    'License :: OSI Approved :: MIT License',
                    'Programming Language :: Python',
-                   'Programming Language :: Python :: 2.7',
                    'Programming Language :: Python :: 3.6',
                    'Programming Language :: Python :: 3.7',
                    'Programming Language :: Python :: 3.8',

slimta/cloudstorage/__init__.py

@@ -22,8 +22,6 @@
 """Package containing a module for the different cloud service providers along
 with any necessary helper modules.
 
-.. _Cloud Files: http://www.rackspace.com/cloud/files/
-.. _Cloud Queues: http://www.rackspace.com/cloud/queues/
 .. _S3: http://aws.amazon.com/s3/
 .. _SQS: http://aws.amazon.com/sqs/
 
@@ -49,21 +47,18 @@ class CloudStorageError(QueueError):
 class CloudStorage(QueueStorage):
     """This class implements a :class:`~slimta.queue.QueueStorage` backend that
     uses cloud services to store messages. It coordinates the storage of
-    messages and metadata (using `Cloud Files`_ or `S3`_) with the optional
-    message queue mechanisms (using `Cloud Queues`_ or `SQS`_) that can alert
-    other *slimta* processes that a new message is available in the object
-    store.
+    messages and metadata (using `S3`_) with the optional message queue
+    mechanisms (using `SQS`_) that can alert other *slimta* processes that a
+    new message is available in the object store.
 
     :param object_store: The object used as the backend for storing message
                          contents and metadata in the cloud. Currently this can
                          be an instance of
-                         :class:`~rackspace.RackspaceCloudFiles` or
                          :class:`~aws.SimpleStorageService`.
     :param message_queue: The optional object used
                           as the backend for alerting other processes that a
                           new message is in the object store. Currently this
                           can be an instance of
-                          :class:`~rackspace.RackspaceCloudQueues` or
                           :class:`~aws.SimpleQueueService`.
 
     """

slimta/cloudstorage/aws.py

@@ -62,8 +62,7 @@
 
 import uuid
 import json
-
-from six.moves import cPickle
+import pickle
 
 import gevent
 from boto.s3.key import Key
@@ -105,7 +104,7 @@ def _get_key(self, id):
     def write_message(self, envelope, timestamp):
         key = self.Key(self.bucket)
         key.key = self.prefix+str(uuid.uuid4())
-        envelope_raw = cPickle.dumps(envelope, cPickle.HIGHEST_PROTOCOL)
+        envelope_raw = pickle.dumps(envelope, pickle.HIGHEST_PROTOCOL)
         with gevent.Timeout(self.timeout):
             key.set_metadata('timestamp', json.dumps(timestamp))
             key.set_metadata('attempts', '')
@@ -137,7 +136,7 @@ def get_message(self, id):
             timestamp_raw = key.get_metadata('timestamp')
             attempts_raw = key.get_metadata('attempts')
             delivered_raw = key.get_metadata('delivered_indexes')
-        envelope = cPickle.loads(envelope_raw)
+        envelope = pickle.loads(envelope_raw)
         meta = {'timestamp': json.loads(timestamp_raw)}
         if attempts_raw:
             meta['attempts'] = json.loads(attempts_raw)