Remove py2 support from EG (#22430)

* Remove py2 support from EG

* dev req

* changes

* Apply suggestions from code review

Author: Rakshith Bhyravabhotla

sdk/eventgrid/azure-eventgrid/CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## 4.7.2 (Unreleased)
 
+- This version and all future versions will require Python 3.6+. Python 2.7 is no longer supported.
+
 ### Features Added
 
 ### Breaking Changes

sdk/eventgrid/azure-eventgrid/README.md

@@ -6,12 +6,12 @@ Azure Event Grid is a fully-managed intelligent event routing service that allow
 
 ## _Disclaimer_
 
-_Azure SDK Python packages support for Python 2.7 is ending 01 January 2022. For more information and questions, please refer to https://github.com/Azure/azure-sdk-for-python/issues/20691_
+_Azure SDK Python packages support for Python 2.7 has ended on 01 January 2022. For more information and questions, please refer to https://github.com/Azure/azure-sdk-for-python/issues/20691_
 
 ## Getting started
 
 ### Prerequisites
-* Python 2.7, or 3.6 or later is required to use this package.
+* Python 3.6 or later is required to use this package.
 * You must have an [Azure subscription][azure_subscription] and an Event Grid Topic resource to use this package. Follow this [step-by-step tutorial](https://docs.microsoft.com/azure/event-grid/custom-event-quickstart-portal) to register the Event Grid resource provider and create Event Grid topics using the [Azure portal](https://portal.azure.com/). There is a [similar tutorial](https://docs.microsoft.com/azure/event-grid/custom-event-quickstart) using [Azure CLI](https://docs.microsoft.com/cli/azure).
 
 

sdk/eventgrid/azure-eventgrid/dev_requirements.txt

@@ -5,4 +5,4 @@
 -e ../azure-mgmt-eventgrid
 azure-storage-queue
 cloudevents<=2.0.0; python_version >= "3.6"
-aiohttp>=3.0; python_version >= '3.5'
+aiohttp>=3.0

sdk/eventgrid/azure-eventgrid/setup.cfg

@@ -20,21 +20,6 @@
 # a-b-c => a.b.c
 namespace_name = PACKAGE_NAME.replace('-', '.')
 
-# azure v0.x is not compatible with this package
-# azure v0.x used to have a __version__ attribute (newer versions don't)
-try:
-    import azure
-    try:
-        ver = azure.__version__
-        raise Exception(
-            'This package is incompatible with azure=={}. '.format(ver) +
-            'Uninstall it with "pip uninstall azure".'
-        )
-    except AttributeError:
-        pass
-except ImportError:
-    pass
-
 # Version extraction inspired from 'requests'
 with open(os.path.join(package_folder_path, 'version.py')
           if os.path.exists(os.path.join(package_folder_path, 'version.py'))
@@ -64,16 +49,15 @@
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         'Programming Language :: Python',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3 :: Only',
         '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',
         'License :: OSI Approved :: MIT License',
     ],
+    python_requires=">=3.6",
     zip_safe=False,
     packages=find_packages(exclude=[
         'tests',
@@ -85,7 +69,4 @@
         'msrest>=0.6.21',
         'azure-core<2.0.0,>=1.18.0',
     ],
-    extras_require={
-        ":python_version<'3.0'": ['azure-nspkg'],
-    }
 )