Python 3.10 compatibility

Author: elacuesta

.github/workflows/main.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        include: 
+        include:
           - python-version: "2.7"
             env:
               TOXENV: "msgpack"
@@ -50,7 +50,13 @@ jobs:
           - python-version: "3.9"
             env:
               TOXENV: "json"
-  
+          - python-version: "3.10"
+            env:
+              TOXENV: "msgpack"
+          - python-version: "3.10"
+            env:
+              TOXENV: "json"
+
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
@@ -65,4 +71,4 @@ jobs:
         tox
 
     - name: Upload to codecov
-      uses: codecov/codecov-action@v2
+      uses: codecov/codecov-action@v2

scrapinghub/hubstorage/resourcetype.py

@@ -1,12 +1,15 @@
-import time
 import json
-import socket
 import logging
-from collections import MutableMapping
+import socket
+import time
+try:
+    from collections.abc import MutableMapping
+except ImportError:
+    from collections import MutableMapping
 
 import six
-from six.moves import range
 import requests.exceptions as rexc
+from six.moves import range
 
 from .utils import urlpathjoin, xauth
 from .serialization import jlencode, jldecode, mpdecode

setup.py

@@ -40,6 +40,9 @@
         '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',
+        'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Internet :: WWW/HTTP',