SG-32806 Enable support for Python 3.10 in CI (#301)

* Test CI with Python 3.10

* Add Support for SSLContext

* Update badges and docs

* Remove 3.11. See note in run-tests.yml

* Update badge. Update maxParallel

Author: carlos-villavicencio-adsk

README.md

@@ -1,5 +1,5 @@
-[![VFX Platform](https://img.shields.io/badge/vfxplatform-2020-blue.svg)](http://www.vfxplatform.com/)
-[![Python 3.7](https://img.shields.io/badge/python-3.7-blue.svg)](https://www.python.org/)
+[![VFX Platform](https://img.shields.io/badge/vfxplatform-2023%202022%202021%202020-blue.svg)](http://www.vfxplatform.com/)
+[![Python 3.7 3.9 3.10](https://img.shields.io/badge/python-3.7%20%7C%203.9%20%7C%203.10-blue.svg)](https://www.python.org/)
 [![Reference Documentation](http://img.shields.io/badge/doc-reference-blue.svg)](http://developer.shotgridsoftware.com/python-api)
 [![Build Status](https://dev.azure.com/shotgun-ecosystem/Python%20API/_apis/build/status/shotgunsoftware.python-api?branchName=master)](https://dev.azure.com/shotgun-ecosystem/Python%20API/_build/latest?definitionId=108&branchName=master)
 [![Coverage Status](https://coveralls.io/repos/github/shotgunsoftware/python-api/badge.svg?branch=master)](https://coveralls.io/github/shotgunsoftware/python-api?branch=master)

azure-pipelines-templates/run-tests.yml

@@ -43,11 +43,19 @@ jobs:
   # matrix.
   strategy:
     matrix:
-      # We support these two versions of Python.
+      # We support these versions of Python.
       Python37:
         python.version: '3.7'
       Python39:
         python.version: '3.9'
+      Python310:
+        python.version: '3.10'
+      # Note for Python 3.11. This will raise hundres of warnings on a third party module
+      # pytest_nunit/nunit.py
+      # DeprecationWarning: Use setlocale(), getencoding() and getlocale() instead
+      # This is the current behavior on the latest 1.0.3 version of this module.
+
+    maxParallel: 3
 
   # These are the steps that will be executed inside each job.
   steps:

shotgun_api3/shotgun.py

@@ -4244,11 +4244,19 @@ def connect(self):
         "Connect to a host on a given (SSL) port."
         http_client.HTTPConnection.connect(self)
         # Now that the regular HTTP socket has been created, wrap it with our SSL certs.
-        self.sock = ssl.wrap_socket(
-            self.sock,
-            ca_certs=self.__ca_certs,
-            cert_reqs=ssl.CERT_REQUIRED
-        )
+        if six.PY38:
+            context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
+            context.verify_mode = ssl.CERT_REQUIRED
+            context.check_hostname = False
+            if self.__ca_certs:
+                context.load_verify_locations(self.__ca_certs)
+            self.sock = context.wrap_socket(self.sock)
+        else:
+            self.sock = ssl.wrap_socket(
+                self.sock,
+                ca_certs=self.__ca_certs,
+                cert_reqs=ssl.CERT_REQUIRED
+            )
 
 
 class CACertsHTTPSHandler(urllib.request.HTTPSHandler):