Fix TypedDict for 3.7. Disable 3.6 support/tests.

Author: sortafreel

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                python-version: ['3.6', '3.7', '3.8', '3.9']
+                python-version: ['3.7', '3.8', '3.9']
 
         steps:
             -   uses: actions/checkout@v2

README.md

@@ -470,6 +470,6 @@ flattened_items = [exporter.export_item_as_row(x) for x in item_list]
  
 
 ## Requirements
-- Python 3.6+
+- Python 3.7+
 - Works on Linux, Windows, macOS, BSD
 <br><br>

flattering/__init__.py

@@ -2,14 +2,15 @@
 import json  # NOQA
 import logging
 import re
+import sys
 from functools import wraps
 from os import PathLike
 from typing import Dict, Hashable, List, TextIO, Tuple, Union
 
-# Python 3.6/3.7 compatibility
-try:
+# Python 3.7 compatibility
+if sys.version_info >= (3, 8):
     from typing import TypedDict
-except ImportError:
+else:
     from typing_extensions import TypedDict
 
 import attr

requirements-dev.txt

@@ -2,3 +2,4 @@ pre-commit>=2.15.0
 tox>=3.24.3
 pytest>=6.2.5
 typing-extensions>=3.10.0.2
+pytest-cov>=2.12.1

tox.ini

@@ -1,21 +1,20 @@
 [tox]
-envlist = py38,mypy,isort,black,flake8,doc
+envlist = py37,py38,mypy,isort,black,flake8,doc
 
 [testenv]
 commands =
-    # this ugly hack is here because:
-    # https://github.com/tox-dev/tox/issues/149
+# this ugly hack is here because:
+# https://github.com/tox-dev/tox/issues/149
     pip install -q \
-        -r {toxinidir}/requirements.txt
-    py.test \
-        --cov-report=html:coverage-html --cov-report= --cov=flattering \
-        --doctest-modules --junitxml=test-results/junit.xml \
-        {posargs:flattering tests}
+    -r {toxinidir}/requirements.txt
+    pip install -q \
+    -r {toxinidir}/requirements-dev.txt
+    py.test {posargs:flattering tests}
+
 
 [testenv:mypy]
 deps =
     mypy==0.812
-
 commands = mypy --ignore-missing-imports --no-warn-no-return flattering tests
 
 [testenv:flake8]
@@ -25,20 +24,20 @@ deps =
     flake8-print>=3.0.1
 commands =
     flake8 \
-        flattering \
-        setup.py \
-        tests \
-        {posargs}
+    flattering \
+    setup.py \
+    tests \
+    {posargs}
 
 [testenv:black]
 deps =
     black
 commands =
     black \
-        flattering \
-        setup.py \
-        tests/ \
-        {posargs}
+    flattering \
+    setup.py \
+    tests/ \
+    {posargs}
 
 [testenv:black-check]
 deps =
@@ -50,10 +49,10 @@ commands =
 deps = isort
 commands =
     isort \
-        flattering/ \
-        setup.py \
-        tests/ \
-        {posargs}
+    flattering/ \
+    setup.py \
+    tests/ \
+    {posargs}
 
 [testenv:isort-check]
 deps = {[testenv:isort]deps}