Merge pull request #2138 from jonathan343/3.8-removal

Drop support for Python 3.8

Author: jamesls

.changes/next-release/59013375-feature-Python-15608.json

@@ -0,0 +1,5 @@
+{
+  "type": "feature",
+  "category": "Python",
+  "description": "Drop support for Python 3.8 (#2138)"
+}

.github/workflows/run-tests.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: [3.8, 3.9, '3.10', 3.11, 3.12]
+        python-version: [3.9, '3.10', 3.11, 3.12]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8, 3.9, '3.10', 3.11, 3.12]
+        python-version: [3.9, '3.10', 3.11, 3.12]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2

CONTRIBUTING.rst

@@ -66,10 +66,9 @@ First, create a virtual environment for chalice::
     $ virtualenv venv
     $ source venv/bin/activate
 
-Keep in mind that chalice is designed to work with AWS Lambda,
-so you should ensure your virtual environment is created with
-python2.7, python3.6, or python3.7, which are the versions of python currently supported by
-AWS Lambda.
+Keep in mind that chalice is designed to work with AWS Lambda.
+Make sure to create your virtual environment using Python 3.9 to 3.12,
+as these are versions currently supported by both AWS Lambda and chalice.
 
 Next, you'll need to install chalice.  The easiest way to configure this
 is to  use::

README.rst

@@ -109,17 +109,17 @@ Quickstart
 .. quick-start-begin
 
 In this tutorial, you'll use the ``chalice`` command line utility
-to create and deploy a basic REST API.  This quickstart uses Python 3.7,
+to create and deploy a basic REST API.  This quickstart uses Python 3.9,
 but AWS Chalice supports all versions of python supported by AWS Lambda,
-which includes Python 3.7 through python 3.12.
+which includes Python 3.9 through python 3.12.
 
 To install Chalice, we'll first create and activate a virtual environment
-in python3.7::
+in python3.9::
 
     $ python3 --version
-    Python 3.7.3
-    $ python3 -m venv venv37
-    $ . venv37/bin/activate
+    Python 3.9.22
+    $ python3 -m venv venv39
+    $ . venv39/bin/activate
 
 Next we'll install Chalice using ``pip``::
 

chalice/awsclient.py

@@ -50,10 +50,7 @@
 from botocore.vendored.requests.exceptions import (
     ReadTimeout as RequestsReadTimeout,
 )
-try:
-    from typing import TypedDict
-except ImportError:
-    from typing_extensions import TypedDict
+from typing import TypedDict
 
 from chalice.constants import DEFAULT_STAGE_NAME
 from chalice.constants import MAX_LAMBDA_DEPLOYMENT_SIZE

chalice/config.py

@@ -148,12 +148,12 @@ def lambda_python_version(self) -> str:
         # we attempt to match your python version to the closest version
         # supported by lambda.
         major, minor = sys.version_info[0], sys.version_info[1]
-        if (major, minor) < (3, 8):
-            return 'python3.8'
+        if (major, minor) < (3, 9):
+            return 'python3.9'
         elif (major, minor) <= (3, 11):
             # Otherwise we use your current version of python if Lambda
             # supports it.
-            return 'python%s.%s' % (major, minor)
+            return f'python{major}.{minor}'
         return 'python3.12'
 
     @property

chalice/deploy/packager.py

@@ -76,7 +76,6 @@ class BaseLambdaDeploymentPackager(object):
     _VENDOR_DIR = 'vendor'
 
     _RUNTIME_TO_ABI = {
-        'python3.8': 'cp38',
         'python3.9': 'cp39',
         'python3.10': 'cp310',
         'python3.11': 'cp311',

chalice/pipeline.py

@@ -90,9 +90,9 @@ def __init__(self, app_name, lambda_python_version,
                  chalice_version_range=None, pipeline_version='v1'):
         # type: (str, str, Optional[str], str, Optional[str], str) -> None
         self.app_name = app_name
-        # lambda_python_version is what matches lambda, e.g. 'python3.7'.
+        # lambda_python_version is what matches lambda, e.g. 'python3.9'.
         self.lambda_python_version = lambda_python_version
-        # py_major_minor is just the version string, e.g. '3.7'
+        # py_major_minor is just the version string, e.g. '3.9'
         self.py_major_minor = self._extract_version(lambda_python_version)
         self.codebuild_image = codebuild_image
         self.code_source = code_source
@@ -162,7 +162,7 @@ def _validate_python_version(self, python_version):
         major, minor = [
             int(v) for v in python_version.split('.')
         ]
-        if (major, minor) < (3, 7):
+        if (major, minor) < (3, 9):
             raise InvalidCodeBuildPythonVersion(
                 python_version,
                 'This CodeBuild image does not support python version: %s' % (

docs/source/tutorials/customdomain.rst

@@ -13,9 +13,9 @@ If you haven't already setup and configured Chalice, see the
 to create a basic Chalice app::
 
     $ python3 --version
-    Python 3.7.3
-    $ python3 -m venv venv37
-    $ . venv37/bin/activate
+    Python 3.9.22
+    $ python3 -m venv venv39
+    $ . venv39/bin/activate
     $ python3 -m pip install chalice
     $ chalice new-project customdomain
     $ cd customdomain

docs/source/tutorials/events.rst

@@ -16,9 +16,9 @@ If you haven't already setup and configured Chalice, see the
 basic Chalice app created with::
 
     $ python3 --version
-    Python 3.7.3
-    $ python3 -m venv venv37
-    $ . venv37/bin/activate
+    Python 3.9.22
+    $ python3 -m venv venv39
+    $ . venv39/bin/activate
     $ python3 -m pip install chalice
     $ chalice new-project chalice-sns-demo
     $ cd chalice-sns-demo