feat: remove Python3.7 support

.github/workflows/ci_tests.yaml

@@ -25,7 +25,6 @@ jobs:
           - os: macos-latest
             architecture: x64
         python:
-          - 3.7
           - 3.8
           - 3.9
           - "3.10"

README.rst

@@ -47,7 +47,7 @@ Getting Started
 Required Prerequisites
 ======================
 
-* Python 3.7+
+* Python 3.8+
 
 
 Installation

buildspec.yml

@@ -3,10 +3,6 @@ version: 0.2
 batch:
   fast-fail: false
   build-list:
-    - identifier: python3_7
-      buildspec: codebuild/python3.7.yml
-      env:
-        image: aws/codebuild/standard:5.0
     - identifier: python3_8
       buildspec: codebuild/python3.8.yml
       env:

setup.py

@@ -48,11 +48,11 @@ 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/dynamodb_encryption_sdk/compatability.py

@@ -24,9 +24,10 @@ def _warn_deprecated_python():
         (3, 4): {"date": DEPRECATION_DATE_MAP["2.x"]},
         (3, 5): {"date": "2021-11-10"},
         (3, 6): {"date": "2021-12-19"},
+        (3, 7): {"date": "2024-03-04"},
     }
     py_version = (sys.version_info.major, sys.version_info.minor)
-    minimum_version = (3, 7)
+    minimum_version = (3, 8)
 
     if py_version in deprecated_versions:
         params = deprecated_versions[py_version]
@@ -36,5 +37,5 @@ def _warn_deprecated_python():
             "bug fixes, and security updates please upgrade to Python {}.{} or "
             "later. For more information, see SUPPORT_POLICY.rst: "
             "https://github.com/aws/aws-dynamodb-encryption-python/blob/master/SUPPORT_POLICY.rst"
-        ).format(py_version[0], py_version[1], minimum_version[0], minimum_version[1], params["date"])
+        ).format(py_version[0], py_version[1], params["date"], minimum_version[0], minimum_version[1])
         warnings.warn(warning, DeprecationWarning)

test/unit/test_compatability.py

@@ -25,7 +25,7 @@ class TestWarnDeprecatedPython:
     def test_happy_version(self):
         with mock.patch.object(sys, "version_info") as v_info:
             v_info.major = 3
-            v_info.minor = 7
+            v_info.minor = 8
             with pytest.warns(None) as record:
                 _warn_deprecated_python()
             assert len(record) == 0

tox.ini

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