python-openapi/openapi-core#296: Use jsonschema alpha release, remove python 3.6 support

Author: nezhar

.github/workflows/python-test.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9]
         os: [windows-latest, ubuntu-latest]
       fail-fast: false
     steps:

openapi_spec_validator/readers.py

@@ -1,8 +1,5 @@
 import os
-try:
-    import pathlib
-except ImportError:
-    import pathlib2 as pathlib
+import pathlib
 import sys
 
 from openapi_spec_validator import all_urls_handler, file_object_handler

requirements.txt

@@ -1,4 +1,4 @@
-git+https://github.com/Julian/jsonschema@main#egg=jsonschema
+jsonschema==4.0.0a6
 git+https://github.com/anexia-it/openapi-schema-validator@master
 PyYAML==5.3.1
 six==1.12.0

setup.cfg

@@ -23,8 +23,8 @@ python_requires = >= 3.6
 setup_requires =
     setuptools
 install_requires =
-    jsonschema
-    openapi-schema-validator
+    jsonschema==4.0.0a6
+    openapi-schema-validator @ git+https://github.com/anexia-it/openapi-schema-validator@master
     PyYAML>=5.1
     six
 tests_require =