Drop Python3.7 (#55)

.github/workflows/python-package.yml

@@ -16,21 +16,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
         pymodbus-version: ["2.5.3", "3.0.2", "3.1.3", "3.2.2", "3.3.1"]
         exclude:
         - python-version: "3.10"
           pymodbus-version: "2.5.3"
         - python-version: "3.11"
           pymodbus-version: "2.5.3"
-        - python-version: "3.7"
-          pymodbus-version: "3.0.2"
-        - python-version: "3.7"
-          pymodbus-version: "3.1.3"
-        - python-version: "3.7"
-          pymodbus-version: "3.2.2"
-        - python-version: "3.7"
-          pymodbus-version: "3.3.1"
 
     steps:
     - uses: actions/checkout@v3

setup.py

@@ -1,11 +1,6 @@
 """Install parameters for CLI and python import."""
-from sys import version_info
-
 from setuptools import setup
 
-if version_info < (3, 7):  # noqa: UP036
-    raise ImportError("This module requires Python >=3.7.  Use 0.3.1 for Python3.6")
-
 with open('README.md') as in_file:
     long_description = in_file.read()
 
@@ -22,7 +17,6 @@
     maintainer_email="[email protected]",
     packages=["watlow"],
     install_requires=[
-        'pymodbus>=2.4.0,<3; python_version == "3.7"',
         'pymodbus>=2.4.0; python_version == "3.8"',
         'pymodbus>=2.4.0; python_version == "3.9"',
         'pymodbus>=3.0.2,<3.4.0; python_version >= "3.10"',
@@ -48,7 +42,6 @@
         "Natural Language :: English",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",