add support for 3.6/3.7 by installing typing extensions/dataclasses

Author: dy-waltergrantward

.github/workflows/test-runner.yml

@@ -7,9 +7,9 @@ jobs:
 
     runs-on: ubuntu-latest
     strategy:
-      max-parallel: 4
+      max-parallel: 5
       matrix:
-        python-version: ['3.8', '3.9', '3.10']
+        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}

dynata_rex/models/opportunity_registry.py

@@ -7,7 +7,8 @@
 """
 # Python Imports
 from enum import Enum
-from typing import List, Literal, Union, Optional
+from typing import List, Optional, Union
+from typing_extensions import Literal
 
 # Third Party Imports
 from pydantic import Field, HttpUrl

setup.py

@@ -24,12 +24,21 @@
     extras_require={
         # pip install -e ".[testing]"
         "testing": ['pytest'],
+        ':python_version == "3.6"': [
+            "typing-extensions==4.0.1",
+            'dataclasses==0.8'
+        ],
+        ':python_version == "3.7"': [
+            "typing-extensions==4.0.1"
+        ]
     },
     tests_require=['pytest'],
     keywords='respondent exchange rex smor dynata python',
     classifiers=[
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
+        "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",