adding support for Python 3.10 (zappa#1231)

Ref zappa#1160, zappa#1124

.github/ISSUE_TEMPLATE.md

@@ -1,7 +1,7 @@
 <!--- Provide a general summary of the issue in the Title above -->
 ## Context
 <!--- Provide a more detailed introduction to the issue itself, and why you consider it to be a bug -->
-<!--- Also, please make sure that you are running Zappa _from a virtual environment_ and are using Python 3.7/3.8/3.9 -->
+<!--- Also, please make sure that you are running Zappa _from a virtual environment_ and are using Python 3.7/3.8/3.9/3.10 -->
 
 ## Expected Behavior
 <!--- Tell us what should happen -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -20,7 +20,7 @@ Before you submit this PR, please make sure that you meet these criteria:
 
 * Did you **make sure this code actually works on Lambda**, as well as locally?
 
-* Did you test this code with all of **Python 3.7**, **Python 3.8** and **Python 3.9** ? 
+* Did you test this code with all of **Python 3.7**, **Python 3.8**, **Python 3.9** and **Python 3.10** ?
 
 * Does this commit ONLY relate to the issue at hand and have your linter shit all over the code?
 

.github/workflows/cd.yaml

@@ -15,10 +15,10 @@ jobs:
     steps:
       - name: Checkout Code Repository
         uses: actions/checkout@v2
-      - name: Set up Python 3.9
+      - name: Set up Python 3.10
         uses: actions/setup-python@v2
         with:
-          python-version: 3.9
+          python-version: "3.10"
       - name: Install `pypa/build`
         run: python -m pip install build
       - name: Build sdist and wheel

.github/workflows/ci.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python: [3.7, 3.8, 3.9]
+        python: [3.7, 3.8, 3.9, "3.10"]
     steps:
       - name: Checkout Code Repository
         uses: actions/checkout@v2

README.md

@@ -137,7 +137,7 @@ __Awesome!__
 
 ## Installation and Configuration
 
-_Before you begin, make sure you are running Python 3.7/3.8/3.9 and you have a valid AWS account and your [AWS credentials file](https://blogs.aws.amazon.com/security/post/Tx3D6U6WSFGOK2H/A-New-and-Standardized-Way-to-Manage-Credentials-in-the-AWS-SDKs) is properly installed._
+_Before you begin, make sure you are running Python 3.7/3.8/3.9/3.10 and you have a valid AWS account and your [AWS credentials file](https://blogs.aws.amazon.com/security/post/Tx3D6U6WSFGOK2H/A-New-and-Standardized-Way-to-Manage-Credentials-in-the-AWS-SDKs) is properly installed._
 
 **Zappa** can easily be installed through pip, like so:
 
@@ -447,7 +447,7 @@ For instance, suppose you have a basic application in a file called "my_app.py",
 
 Any remote print statements made and the value the function returned will then be printed to your local console. **Nifty!**
 
-You can also invoke interpretable Python 3.7/3.8/3.9 strings directly by using `--raw`, like so:
+You can also invoke interpretable Python 3.7/3.8/3.9/3.10 strings directly by using `--raw`, like so:
 
     $ zappa invoke production "print(1 + 2 + 3)" --raw
 
@@ -988,7 +988,7 @@ to change Zappa's behavior. Use these at your own risk!
         "role_name": "MyLambdaRole", // Name of Zappa execution role. Default <project_name>-<env>-ZappaExecutionRole. To use a different, pre-existing policy, you must also set manage_roles to false.
         "role_arn": "arn:aws:iam::12345:role/app-ZappaLambdaExecutionRole", // ARN of Zappa execution role. Default to None. To use a different, pre-existing policy, you must also set manage_roles to false. This overrides role_name. Use with temporary credentials via GetFederationToken.
         "route53_enabled": true, // Have Zappa update your Route53 Hosted Zones when certifying with a custom domain. Default true.
-        "runtime": "python3.9", // Python runtime to use on Lambda. Can be one of "python3.7", "python3.8", or "python3.9". Defaults to whatever the current Python being used is.
+        "runtime": "python3.10", // Python runtime to use on Lambda. Can be one of "python3.7", "python3.8", "python3.9", or "python3.10". Defaults to whatever the current Python being used is.
         "s3_bucket": "dev-bucket", // Zappa zip bucket,
         "slim_handler": false, // Useful if project >50M. Set true to just upload a small handler to Lambda and load actual project from S3 at runtime. Default false.
         "settings_file": "~/Projects/MyApp/settings/dev_settings.py", // Server side settings file location,

setup.py

@@ -47,6 +47,7 @@
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
         "Framework :: Django",
         "Framework :: Django :: 1.11",
         "Framework :: Django :: 2.0",

tests/tests.py

@@ -170,6 +170,33 @@ def test_get_manylinux_python39(self):
             self.assertTrue(os.path.isfile(path))
             os.remove(path)
 
+    def test_get_manylinux_python310(self):
+        z = Zappa(runtime="python3.10")
+        self.assertIsNotNone(z.get_cached_manylinux_wheel("psycopg2-binary", "2.9.1"))
+        self.assertIsNone(z.get_cached_manylinux_wheel("derp_no_such_thing", "0.0"))
+
+        # mock with a known manylinux wheel package so that code for downloading them gets invoked
+        mock_installed_packages = {"psycopg2-binary": "2.9.1"}
+        with mock.patch(
+            "zappa.core.Zappa.get_installed_packages",
+            return_value=mock_installed_packages,
+        ):
+            z = Zappa(runtime="python3.10")
+            path = z.create_lambda_zip(handler_file=os.path.realpath(__file__))
+            self.assertTrue(os.path.isfile(path))
+            os.remove(path)
+
+        # same, but with an ABI3 package
+        mock_installed_packages = {"cryptography": "2.8"}
+        with mock.patch(
+            "zappa.core.Zappa.get_installed_packages",
+            return_value=mock_installed_packages,
+        ):
+            z = Zappa(runtime="python3.10")
+            path = z.create_lambda_zip(handler_file=os.path.realpath(__file__))
+            self.assertTrue(os.path.isfile(path))
+            os.remove(path)
+
     def test_getting_installed_packages(self, *args):
         z = Zappa(runtime="python3.7")
 

zappa/__init__.py

@@ -12,7 +12,7 @@ def running_in_docker() -> bool:
     return running_in_docker_flag
 
 
-SUPPORTED_VERSIONS = [(3, 7), (3, 8), (3, 9)]
+SUPPORTED_VERSIONS = [(3, 7), (3, 8), (3, 9), (3, 10)]
 MINIMUM_SUPPORTED_MINOR_VERSION = 7
 
 if not running_in_docker() and sys.version_info[:2] not in SUPPORTED_VERSIONS:

zappa/core.py

@@ -312,8 +312,10 @@ def __init__(
             # The 'm' has been dropped in python 3.8+ since builds with and without pymalloc are ABI compatible
             # See https://github.com/pypa/manylinux for a more detailed explanation
             self.manylinux_suffix_start = "cp38"
-        else:
+        elif self.runtime == "python3.9":
             self.manylinux_suffix_start = "cp39"
+        else:
+            self.manylinux_suffix_start = "cp310"
 
         # AWS Lambda supports manylinux1/2010, manylinux2014, and manylinux_2_24
         manylinux_suffixes = ("_2_24", "2014", "2010", "1")

zappa/utilities.py

@@ -212,8 +212,10 @@ def get_runtime_from_python_version():
             return "python3.7"
         elif sys.version_info[1] <= 8:
             return "python3.8"
-        else:
+        elif sys.version_info[1] <= 9:
             return "python3.9"
+        else:
+            return "python3.10"
 
 
 ##