feat: remove Python3.7 support

.github/workflows/ci_tests.yaml

@@ -28,7 +28,6 @@ jobs:
           - windows-latest
           - macos-latest
         python:
-          - 3.7
           - 3.8
           - 3.9
           - "3.10"

README.rst

@@ -34,7 +34,7 @@ Getting Started
 Required Prerequisites
 ======================
 
-* Python 3.7+
+* Python 3.8+
 * cryptography >= 3.4.6
 * boto3 >= 1.10.0
 * attrs

buildspec.yml

@@ -3,19 +3,6 @@ version: 0.2
 batch:
   fast-fail: false
   build-list:
-    - identifier: py37_integ
-      buildspec: codebuild/py37/integ.yml
-      env:
-        image: aws/codebuild/standard:5.0
-    - identifier: py37_examples
-      buildspec: codebuild/py37/examples.yml
-      env:
-        image: aws/codebuild/standard:5.0
-    - identifier: py37_awses_local
-      buildspec: codebuild/py37/awses_local.yml
-      env:
-        image: aws/codebuild/standard:5.0
-
     - identifier: py38_integ
       buildspec: codebuild/py38/integ.yml
       env:

setup.py

@@ -46,9 +46,11 @@ def get_requirements():
         "License :: OSI Approved :: Apache Software License",
         "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",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Security",
         "Topic :: Security :: Cryptography",

src/aws_encryption_sdk/compatability.py

@@ -23,9 +23,10 @@ def _warn_deprecated_python():
         (2, 7): {"date": DEPRECATION_DATE_MAP["2.x"]},
         (3, 4): {"date": DEPRECATION_DATE_MAP["2.x"]},
         (3, 5): {"date": "2021-11-10"},
+        (3, 7): {"date": "2024-03-04"},
     }
     py_version = (sys.version_info.major, sys.version_info.minor)
-    minimum_version = (3, 6)
+    minimum_version = (3, 8)
 
     if py_version in deprecated_versions:
         params = deprecated_versions[py_version]

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{37,38,39,310,311,312}-{local,integ,accept,examples}, nocmk,
+    py{38,39,310,311,312}-{local,integ,accept,examples}, nocmk,
     bandit, doc8, readme, docs,
     {flake8,pylint}{,-tests,-examples},
     isort-check, black-check,