py38+: explicit loop argument warnings fixed; requirements, scripts and github action updated

Author: olegm

.github/workflows/tests.yml

@@ -10,7 +10,7 @@ on:
 jobs:
   test:
     name: run all tests
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         python-version: [3.5, 3.6, 3.7, 3.8, 'pypy3']
@@ -22,6 +22,6 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
     - name: pip-requirements
-      run: pip install --upgrade pytest pytest-asyncio async-timeout
+      run: pip install --upgrade -r reqs-test.txt
     - name: run-test
-      run: pytest --continue-on-collection-errors ./tests
+      run: pytest -sv --continue-on-collection-errors ./tests

asyncio_pool/base_pool.py

@@ -24,14 +24,15 @@ def __init__(self, size=1024, *, loop=None):
         futures, not "native" ones, returned by `pool.create_task` or used for
         `await`. Read more about this in readme and docstrings below.
         '''
-        self.loop = loop or aio.get_event_loop()
+
+        self.loop = loop or _get_loop()
 
         self.size = size
         self._executed = 0
         self._joined = set()
         self._waiting = {}  # future -> task
         self._active = {}  # future -> task
-        self.semaphore = aio.Semaphore(value=self.size, loop=self.loop)
+        self.semaphore = aio.Semaphore(value=self.size)
 
     async def __aenter__(self):
         return self
@@ -276,3 +277,13 @@ async def cancel(self, *futures, get_result=getres.flat):
         await aio.wait(tasks)  # let them actually cancel
         # need to collect them anyway, to supress warnings
         return cancelled, [get_result(fut) for fut in _futures]
+
+
+def _get_loop():
+    """
+    Backward compatibility w/ py<3.8
+    """
+
+    if hasattr(aio, 'get_running_loop'):
+        return aio.get_running_loop()
+    return aio.get_event_loop()

asyncio_pool/mx_asyncgen.py

@@ -39,6 +39,6 @@ async def itermap(self, fn, iterable, cb=None, ctx=None, *, flat=True,
         '''
         futures = self.map_n(fn, iterable, cb, ctx)
         generator = iterwait(futures, flat=flat, timeout=timeout,
-                get_result=get_result, yield_when=yield_when, loop=self.loop)
+                get_result=get_result, yield_when=yield_when)
         async for batch in generator:
             yield batch  # TODO is it possible to return a generator?

reqs-dev.txt

@@ -1,8 +1,6 @@
-asyncio
+-r reqs-test.txt
+
 ipython
-pytest
-pytest-asyncio
-async-timeout
 setuptools
 wheel
 twine

reqs-test.txt

@@ -0,0 +1,3 @@
+async-timeout
+pytest
+pytest-asyncio

run_tests.sh

@@ -1,17 +1,18 @@
 #! /bin/sh
 
-## 3.5 and pypy (which is also 3.5) are disalbed because of async generators
-py35=python3.5
 pypy3=pypy3
+py35=python3.5
 py36=python3.6
 py37=python3.7
+py38=python3.8
+py39=python3.9
 
-default_env=$py36
+default_env=$py37
 
 
 todo=${@:-"./tests"}
 
-for py in $py35 $py36 $py37 $pypy3
+for py in $py35 $py36 $py37 $py38 $py39 $pypy3
 do
     echo ""
     if [ -x "$(command -v $py)" ]; then

setup.py

@@ -15,7 +15,7 @@
 
 setuptools.setup(
     name='asyncio_pool',
-    version='0.4.1',
+    version='0.5.0',
     author='gistart',
     author_email='[email protected]',
     description='Pool of asyncio coroutines with familiar interface',
@@ -33,7 +33,6 @@
         "Programming Language :: Python :: 3.7",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
-        "Development Status :: 4 - Beta",
         "Framework :: AsyncIO",
     )
 )

setup_dev.sh

@@ -1,15 +1,16 @@
 #! /bin/sh
 
+pypy3=pypy3
 py35=python3.5
-pypy3=pypy3  # also 3.5 currently
 py36=python3.6
 py37=python3.7
-#pypy3=/opt/pypy3/pypy3/bin/pypy3
+py38=python3.8
+py39=python3.9
 
-default_env=$py36
+default_env=$py37
 
 
-for py in $py35 $pypy3 $py36 $py37
+for py in $pypy3 $py35 $py36 $py37 $py38 $py39
 do
     if [ -x "$(command -v $py)" ]; then
         pyname="$(basename $py)"