fix: correct requirements and python version support. dev requirement can be installed with: pip install ".[dev]"

.github/workflows/release.yml

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b22baa8..4fb59e4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@
     strategy:
       fail-fast: false
       matrix:
-        python-version: [ 3.6, 3.7, 3.8, 3.9 ]
+        python-version: [ "3.6", "3.7", "3.8", "3.9", "3.10" ]
         os: [ ubuntu-latest, macOS-latest, windows-latest]
 
     steps:

setup.py

diff --git a/setup.py b/setup.py
index 1b317b8..fb6171a 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,6 @@
 with open("README.md", "r") as readme_file:

     readme = readme_file.read()

 

-requirements = ["casbin==0.8.4", "psycopg2-binary==2.8.6", "black==20.8b1"]

 

 setup(

     name="casbin-postgresql-watcher",

@@ -15,9 +14,18 @@
     long_description_content_type="text/markdown",

     url="https://github.com/pycasbin/postgresql-watcher",

     packages=find_packages(),

-    install_requires=requirements,

+    install_requires=open('requirements.txt').read().splitlines(),

+    extras_require={

+        'dev': [

+            open('dev_requirements.txt').read().splitlines(),

+        ]

+    },

     classifiers=[

+        "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 :: Apache Software License",

     ],

 )