type(chore) Update dependencies to latest version

Author: bryantbiggs

README.md

@@ -2,10 +2,11 @@
 
 [![CircleCI](https://img.shields.io/circleci/build/github/DataDog/datadog-lambda-layer-python)](https://circleci.com/gh/DataDog/datadog-lambda-layer-python)
 [![PyPI](https://img.shields.io/pypi/v/datadog-lambda)](https://pypi.org/project/datadog-lambda/)
+![PyPI - Python Version](https://img.shields.io/pypi/pyversions/datadog-lambda)
 [![Slack](https://img.shields.io/badge/slack-%23serverless-blueviolet?logo=slack)](https://datadoghq.slack.com/channels/serverless/)
 [![License](https://img.shields.io/badge/license-Apache--2.0-blue)](https://github.com/DataDog/datadog-lambda-layer-python/blob/master/LICENSE)
 
-Datadog Lambda Layer for Python (2.7, 3.6 and 3.7) enables custom metric submission from AWS Lambda functions, and distributed tracing between serverful and serverless environments.
+Datadog Lambda Layer for Python (2.7, 3.6, 3.7 and 3.8) enables custom metric submission from AWS Lambda functions, and distributed tracing between serverful and serverless environments.
 
 ## Installation
 
@@ -15,7 +16,13 @@ Datadog Lambda Layer can be added to a Lambda function via AWS Lambda console, [
 arn:aws:lambda:<AWS_REGION>:464622532012:layer:Datadog-<PYTHON_RUNTIME>:<VERSION>
 ```
 
-Replace `<AWS_REGION>` with the AWS region where your Lambda function is published to. Replace `<PYTHON_RUNTIME>` with `Datadog-Python27` with `Datadog-Python36` or `Datadog-Python37` that matches your Lambda's Python runtime. Replace `<VERSION>` with the latest layer version that can be found from [CHANGELOG](CHANGELOG.md). For example,
+Replace `<AWS_REGION>` with the AWS region where your Lambda function is published to. Replace `<PYTHON_RUNTIME>` with one of the following that matches your Lambda's Python runtime:
+- `Datadog-Python27`
+- `Datadog-Python36`
+- `Datadog-Python37`
+- `Datadog-Python38`
+
+Replace `<VERSION>` with the latest layer version that can be found from [CHANGELOG](CHANGELOG.md). For example,
 
 ```
 arn:aws:lambda:us-east-1:464622532012:layer:Datadog-Python37:1

setup.py

@@ -28,18 +28,18 @@
     packages=['datadog_lambda'],
     python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, <4',
     install_requires=[
-        'aws-xray-sdk==2.4.2',
+        'aws-xray-sdk==2.4.3',
         'datadog==0.32.0',
-        'ddtrace==0.30.2',
-        'wrapt==1.11.1',
-        'setuptools==41.6.0',
+        'ddtrace==0.31.0',
+        'wrapt==1.11.2',
+        'setuptools==42.0.2',
     ],
     extras_require={
         'dev': [
             'nose2==0.9.1',
-            'flake8==3.7.7',
-            'requests==2.21.0',
-            'boto3==1.10.17',
+            'flake8==3.7.9',
+            'requests==2.22.0',
+            'boto3==1.10.33',
         ]
     }
 )