green.http: collections.Iterable alias removed in Python 3.10, CI 3.1…

…0, drop non-essential CI against 2.7 to 3.6

fixes #740

related to #715

.github/workflows/test.yaml

@@ -29,16 +29,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - { py: 2.7, toxenv: py27-epolls, ignore-error: false, os: ubuntu-latest }
-          - { py: 2.7, toxenv: py27-poll, ignore-error: false, os: ubuntu-latest }
-          - { py: 2.7, toxenv: py27-selects, ignore-error: false, os: ubuntu-latest }
-          - { py: 2.7, toxenv: py27-dnspython1, ignore-error: false, os: ubuntu-latest }
-          - { py: 3.5, toxenv: py35-epolls, ignore-error: false, os: ubuntu-20.04 }
-          - { py: 3.5, toxenv: py35-poll, ignore-error: false, os: ubuntu-20.04 }
-          - { py: 3.5, toxenv: py35-selects, ignore-error: false, os: ubuntu-20.04 }
-          - { py: 3.6, toxenv: py36-epolls, ignore-error: false, os: ubuntu-20.04 }
-          - { py: 3.6, toxenv: py36-poll, ignore-error: false, os: ubuntu-20.04 }
-          - { py: 3.6, toxenv: py36-selects, ignore-error: false, os: ubuntu-20.04 }
+          - { py: 2.7, toxenv: py27-epolls, ignore-error: true, os: ubuntu-latest }
+          - { py: 3.5, toxenv: py35-epolls, ignore-error: true, os: ubuntu-20.04 }
+          - { py: 3.6, toxenv: py36-epolls, ignore-error: true, os: ubuntu-20.04 }
           - { py: 3.7, toxenv: py37-epolls, ignore-error: false, os: ubuntu-latest }
           - { py: 3.7, toxenv: py37-poll, ignore-error: false, os: ubuntu-latest }
           - { py: 3.7, toxenv: py37-selects, ignore-error: false, os: ubuntu-latest }
@@ -50,7 +43,10 @@ jobs:
           - { py: 3.9, toxenv: py39-poll, ignore-error: false, os: ubuntu-latest }
           - { py: 3.9, toxenv: py39-selects, ignore-error: false, os: ubuntu-latest }
           - { py: 3.9, toxenv: py39-dnspython1, ignore-error: false, os: ubuntu-latest }
-          - { py: 3.x, toxenv: ipv6, ignore-error: false, os: ubuntu-latest }
+          - { py: "3.10", toxenv: py310-epolls, ignore-error: false, os: ubuntu-latest }
+          - { py: "3.10", toxenv: py310-poll, ignore-error: false, os: ubuntu-latest }
+          - { py: "3.10", toxenv: py310-selects, ignore-error: false, os: ubuntu-latest }
+          - { py: "3.10", toxenv: ipv6, ignore-error: false, os: ubuntu-latest }
           - { py: pypy2.7, toxenv: pypy2-epolls, ignore-error: true, os: ubuntu-20.04 }
           - { py: pypy3.9, toxenv: pypy3-epolls, ignore-error: true, os: ubuntu-20.04 }
 

eventlet/green/http/client.py

@@ -126,7 +126,10 @@
 import email.message
 import io
 import re
-import collections
+try:
+    from collections.abc import Iterable
+except ImportError:
+    from collections import Iterable
 from urllib.parse import urlsplit
 
 from eventlet.green import http, os, socket
@@ -1048,7 +1051,7 @@ def send(self, data):
         try:
             self.sock.sendall(data)
         except TypeError:
-            if isinstance(data, collections.Iterable):
+            if isinstance(data, Iterable):
                 for d in data:
                     self.sock.sendall(d)
             else:

tox.ini

@@ -16,7 +16,12 @@ statistics = 1
 [tox]
 minversion=2.5
 envlist =
-    ipv6, pep8, py{27,35,36,37,38,39,py2,py3}-{selects,poll,epolls}, py38-openssl, py27-dnspython1, py39-dnspython1
+    ipv6
+    pep8
+    py38-openssl
+    py39-dnspython1
+    py{27,35,36,py2,py3}-epolls
+    py{37,38,39,310}-{selects,poll,epolls}
 skipsdist = True
 
 [testenv:ipv6]
@@ -26,9 +31,10 @@ setenv =
     eventlet_test_ipv6 = 1
 deps =
     coverage==4.5.1
-    nose==1.3.7
-    setuptools==38.5.1
+    nose3==1.3.8
+usedevelop = True
 commands =
+    pip install -e .
     nosetests --verbose {env:tox_cover_args} \
         tests.backdoor_test:BackdoorTest.test_server_on_ipv6_socket \
         tests.wsgi_test:TestHttpd.test_ipv6
@@ -56,17 +62,20 @@ setenv =
     tox_cover_args = --with-coverage --cover-erase --cover-package=eventlet
 deps =
     coverage==4.5.1
-    nose==1.3.7
+    nose3==1.3.8
     py27-{selects,poll,epolls}: pyopenssl==19.1.0
     py27: mysqlclient==1.4.6
+    py{27,35}: setuptools==38.5.1
     py27: subprocess32==3.2.7
     py38-openssl: pyopenssl==20.0.0
     pypy{2,3}: psycopg2cffi-compat==1.1
+    py{27,35}-{selects,poll,epolls}: pyzmq==19.0.2
+    py{36,37,38,39}-{selects,poll,epolls}: pyzmq==21.0.2
     py{27,35,36,37}: psycopg2-binary==2.7.7
-    py{35,36,37,38,39}: mysqlclient==2.0.3
+    py{35,36,37,38,39,310,311}: mysqlclient==2.0.3
     py{38,39}: psycopg2-binary==2.8.4
-    setuptools==38.5.1
-    {selects,poll,epolls}: pyzmq==19.0.2
+    py{310,311}: psycopg2-binary==2.9.5
+    py{310,311}: pyzmq==25.0.0
     dnspython1: dnspython<2
 usedevelop = True
 commands =