Skip tests that don't work on Python 3.12.

conftest.py

@@ -87,6 +87,8 @@ def requires_uvloop(request):
         pytest.skip("uvloop does not support Windows")
     if twisted_version == Version("twisted", 21, 2, 0):
         pytest.skip("https://twistedmatrix.com/trac/ticket/10106")
+    if sys.version_info >= (3, 12):
+        pytest.skip("uvloop doesn't support Python 3.12 yet")
 
 
 def pytest_configure(config):

tests/requirements.txt

@@ -1,15 +1,17 @@
 # Tests requirements
 attrs
-pyftpdlib
+# https://github.com/giampaolo/pyftpdlib/issues/560
+pyftpdlib; python_version < "3.12"
 pytest
 pytest-cov==4.0.0
 pytest-xdist
 sybil >= 1.3.0  # https://github.com/cjw296/sybil/issues/20#issuecomment-605433422
 testfixtures
-uvloop; platform_system != "Windows"
+# uvloop currently doesn't build on 3.12
+uvloop; platform_system != "Windows" and python_version < "3.12"
 
-# optional for shell wrapper tests
-bpython
+# bpython requires greenlet which currently doesn't build on 3.12
+bpython; python_version < "3.12"  # optional for shell wrapper tests
 brotli  # optional for HTTP compress downloader middleware tests
 zstandard; implementation_name != 'pypy'  # optional for HTTP compress downloader middleware tests
 ipython

tests/test_feedexport.py

@@ -125,6 +125,9 @@ class FileFeedStorageTest(unittest.TestCase):
             path.unlink()
 
 
+@pytest.mark.skipif(
+    sys.version_info >= (3, 12), reason="pyftpdlib doesn't support Python 3.12 yet"
+)
 class FTPFeedStorageTest(unittest.TestCase):
     def get_test_spider(self, settings=None):
         class TestSpider(scrapy.Spider):

tests/test_pipeline_files.py

@@ -1,6 +1,7 @@
 import dataclasses
 import os
 import random
+import sys
 import time
 from datetime import datetime
 from io import BytesIO
@@ -11,6 +12,7 @@ from unittest import mock
 from urllib.parse import urlparse
 
 import attr
+import pytest
 from itemadapter import ItemAdapter
 from twisted.internet import defer
 from twisted.trial import unittest
@@ -641,6 +643,9 @@ class TestGCSFilesStore(unittest.TestCase):
                     store.bucket.get_blob.assert_called_with(expected_blob_path)
 
 
+@pytest.mark.skipif(
+    sys.version_info >= (3, 12), reason="pyftpdlib doesn't support Python 3.12 yet"
+)
 class TestFTPFileStore(unittest.TestCase):
     @defer.inlineCallbacks
     def test_persist(self):