Remove Python 3.7 support due to EOL (#14)

Signed-off-by: Bernd Verst <github@bernd.dev>

Author: berndverst

.github/workflows/pr-validation.yml

@@ -16,7 +16,7 @@ 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"]
 
     steps:
     - uses: actions/checkout@v3
@@ -32,7 +32,6 @@ jobs:
     - name: Lint with flake8
       run: |
         flake8 . --count --show-source --statistics --exit-zero
-      if: matrix.python-version != '3.7'
     - name: Pytest unit tests
       run: |
         pytest -m "not e2e" --verbose

README.md

@@ -133,7 +133,7 @@ Orchestrations can specify retry policies for activities and sub-orchestrations.
 
 ### Prerequisites
 
-- Python 3.7 or higher (Python 3.8 or higher is recommended when running tests or making contributions)
+- Python 3.8
 - A Durable Task-compatible sidecar, like [Dapr Workflow](https://docs.dapr.io/developing-applications/building-blocks/workflow/workflow-overview/)
 
 ### Installing the Durable Task Python client SDK

pyproject.toml

@@ -21,7 +21,7 @@ classifiers = [
   "Programming Language :: Python :: 3",
   "License :: OSI Approved :: MIT License",
 ]
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 license = {file = "LICENSE"}
 readme = "README.md"
 dependencies = [
@@ -40,4 +40,4 @@ minversion = "6.0"
 testpaths = ["tests"]
 markers = [
     "e2e: mark a test as an end-to-end test that requires a running sidecar"
-]
+]