Drop Python 3.5/3.6 support (#383)

Fixes #381

.github/workflows/release.yml

@@ -72,7 +72,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9]
         os: [ubuntu-20.04, macos-latest]
         arch: [x86_64, aarch64]
         exclude:

.github/workflows/tests.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9]
         os: [ubuntu-latest, macos-latest]
 
     steps:

README.rst

@@ -39,7 +39,7 @@ about it.
 Installation
 ------------
 
-uvloop requires Python 3.5 or greater and is available on PyPI.
+uvloop requires Python 3.7 or greater and is available on PyPI.
 Use pip to install it::
 
     $ pip install uvloop
@@ -72,7 +72,7 @@ manually creating an asyncio event loop:
 Building From Source
 --------------------
 
-To build uvloop, you'll need Python 3.5 or greater:
+To build uvloop, you'll need Python 3.7 or greater:
 
 1. Clone the repository:
 

docs/dev/index.rst

@@ -28,7 +28,7 @@ from the `libuv` Github repository.
 Build
 -----
 
-To build `uvloop`, you'll need ``Cython`` and Python 3.5.
+To build `uvloop`, you'll need ``Cython`` and Python 3.7.
 
 .. note::
 

docs/index.rst

@@ -14,7 +14,7 @@ uvloop
 `uvloop` is a fast, drop-in replacement of the built-in asyncio event loop.
 `uvloop` is released under the MIT license.
 
-`uvloop` and asyncio, combined with the power of async/await in Python 3.5,
+`uvloop` and asyncio, combined with the power of async/await in Python 3.7,
 makes it easier than ever to write high-performance networking code in Python.
 
 `uvloop` makes asyncio fast. In fact, it is at least 2x faster than nodejs,

docs/user/index.rst

@@ -8,7 +8,7 @@ uvloop.
 Installation
 ------------
 
-`uvloop` is available from PyPI. It requires Python 3.5.
+`uvloop` is available from PyPI. It requires Python 3.7.
 
 Use pip to install it.
 

setup.py

@@ -1,11 +1,8 @@
 import sys
 
 vi = sys.version_info
-if vi < (3, 5):
-    raise RuntimeError('uvloop requires Python 3.5 or greater')
-if vi[:2] == (3, 6):
-    if vi.releaselevel == 'beta' and vi.serial < 3:
-        raise RuntimeError('uvloop requires Python 3.5 or 3.6b3 or greater')
+if vi < (3, 7):
+    raise RuntimeError('uvloop requires Python 3.7 or greater')
 
 if sys.platform in ('win32', 'cygwin', 'cli'):
     raise RuntimeError('uvloop does not support Windows at the moment')
@@ -310,8 +307,6 @@ def build_extensions(self):
         'Development Status :: 5 - Production/Stable',
         'Framework :: AsyncIO',
         'Programming Language :: Python :: 3 :: Only',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',

tests/test_base.py

@@ -345,9 +345,6 @@ async def foo():
             self.loop.run_until_complete(foo())
 
     def test_run_until_complete_loop_orphan_future_close_loop(self):
-        if self.implementation == 'asyncio' and sys.version_info < (3, 6, 2):
-            raise unittest.SkipTest('unfixed asyncio')
-
         async def foo(delay):
             await asyncio.sleep(delay)
 
@@ -463,9 +460,7 @@ def handler(loop, exc):
 
         self.loop.set_debug(True)
 
-        if hasattr(self.loop, 'get_exception_handler'):
-            # Available since Python 3.5.2
-            self.assertIsNone(self.loop.get_exception_handler())
+        self.assertIsNone(self.loop.get_exception_handler())
         self.loop.set_exception_handler(handler)
         if hasattr(self.loop, 'get_exception_handler'):
             self.assertIs(self.loop.get_exception_handler(), handler)
@@ -582,31 +577,19 @@ async def coro():
         self.loop.set_task_factory(None)
         self.assertIsNone(self.loop.get_task_factory())
 
-    def _compile_agen(self, src):
-        try:
-            g = {}
-            exec(src, globals(), g)
-        except SyntaxError:
-            # Python < 3.6
-            raise unittest.SkipTest()
-        else:
-            return g['waiter']
-
     def test_shutdown_asyncgens_01(self):
         finalized = list()
 
         if not hasattr(self.loop, 'shutdown_asyncgens'):
             raise unittest.SkipTest()
 
-        waiter = self._compile_agen(
-            '''async def waiter(timeout, finalized):
-                try:
-                    await asyncio.sleep(timeout)
-                    yield 1
-                finally:
-                    await asyncio.sleep(0)
-                    finalized.append(1)
-            ''')
+        async def waiter(timeout, finalized):
+            try:
+                await asyncio.sleep(timeout)
+                yield 1
+            finally:
+                await asyncio.sleep(0)
+                finalized.append(1)
 
         async def wait():
             async for _ in waiter(1, finalized):
@@ -641,13 +624,12 @@ def logger(loop, context):
                 self.assertIn('asyncgen', context)
                 logged += 1
 
-        waiter = self._compile_agen('''async def waiter(timeout):
+        async def waiter(timeout):
             try:
                 await asyncio.sleep(timeout)
                 yield 1
             finally:
                 1 / 0
-        ''')
 
         async def wait():
             async for _ in waiter(1):
@@ -669,10 +651,9 @@ def test_shutdown_asyncgens_03(self):
         if not hasattr(self.loop, 'shutdown_asyncgens'):
             raise unittest.SkipTest()
 
-        waiter = self._compile_agen('''async def waiter():
+        async def waiter():
             yield 1
             yield 2
-        ''')
 
         async def foo():
             # We specifically want to hit _asyncgen_finalizer_hook

tests/test_context.py

@@ -1,19 +1,14 @@
 import asyncio
+import contextvars
 import decimal
 import random
-import sys
-import unittest
 import weakref
 
 from uvloop import _testbase as tb
 
 
-PY37 = sys.version_info >= (3, 7, 0)
-
-
 class _ContextBaseTests:
 
-    @unittest.skipUnless(PY37, 'requires Python 3.7')
     def test_task_decimal_context(self):
         async def fractions(t, precision, x, y):
             with decimal.localcontext() as ctx:
@@ -37,9 +32,7 @@ async def main():
         self.assertEqual(str(r2[0]), '0.333333')
         self.assertEqual(str(r2[1]), '0.111111')
 
-    @unittest.skipUnless(PY37, 'requires Python 3.7')
     def test_task_context_1(self):
-        import contextvars
         cvar = contextvars.ContextVar('cvar', default='nope')
 
         async def sub():
@@ -58,9 +51,7 @@ async def main():
         task = self.loop.create_task(main())
         self.loop.run_until_complete(task)
 
-    @unittest.skipUnless(PY37, 'requires Python 3.7')
     def test_task_context_2(self):
-        import contextvars
         cvar = contextvars.ContextVar('cvar', default='nope')
 
         async def main():
@@ -90,9 +81,7 @@ def fut_on_done(fut):
 
         self.assertEqual(cvar.get(), 'nope')
 
-    @unittest.skipUnless(PY37, 'requires Python 3.7')
     def test_task_context_3(self):
-        import contextvars
         cvar = contextvars.ContextVar('cvar', default=-1)
 
         # Run 100 Tasks in parallel, each modifying cvar.
@@ -115,9 +104,7 @@ async def main():
 
         self.assertEqual(cvar.get(), -1)
 
-    @unittest.skipUnless(PY37, 'requires Python 3.7')
     def test_task_context_4(self):
-        import contextvars
         cvar = contextvars.ContextVar('cvar', default='nope')
 
         class TrackMe:
@@ -141,23 +128,7 @@ async def main():
 
 
 class Test_UV_Context(_ContextBaseTests, tb.UVTestCase):
-
-    @unittest.skipIf(PY37, 'requires Python <3.6')
-    def test_context_arg(self):
-        def cb():
-            pass
-
-        with self.assertRaisesRegex(NotImplementedError,
-                                    'requires Python 3.7'):
-            self.loop.call_soon(cb, context=1)
-
-        with self.assertRaisesRegex(NotImplementedError,
-                                    'requires Python 3.7'):
-            self.loop.call_soon_threadsafe(cb, context=1)
-
-        with self.assertRaisesRegex(NotImplementedError,
-                                    'requires Python 3.7'):
-            self.loop.call_later(0.1, cb, context=1)
+    pass
 
 
 class Test_AIO_Context(_ContextBaseTests, tb.AIOTestCase):

tests/test_sockets.py

@@ -21,10 +21,6 @@ async def recv_all(self, sock, nbytes):
         return buf
 
     def test_socket_connect_recv_send(self):
-        if self.is_asyncio_loop() and sys.version_info[:3] == (3, 5, 2):
-            # See https://github.com/python/asyncio/pull/366 for details.
-            raise unittest.SkipTest()
-
         if sys.version_info[:3] >= (3, 8, 0):
             # @asyncio.coroutine is deprecated in 3.8
             raise unittest.SkipTest()

tests/test_sourcecode.py

@@ -10,8 +10,6 @@ def find_uvloop_root():
 
 class TestFlake8(unittest.TestCase):
 
-    @unittest.skipIf(sys.version_info < (3, 6, 0),
-                     "flake8 under 3.5 does not recognize f-strings in *.pyx")
     def test_flake8(self):
         edgepath = find_uvloop_root()
         config_path = os.path.join(edgepath, '.flake8')