fix: require python 3.7+ (#405)

* chore(python): drop python 3.6 Source-Link: googleapis/synthtool@4f89b13 Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:e7bb19d47c13839fe8c147e50e02e8b6cf5da8edd1af8b82208cd6f66cc2829c * add api_description to .repo-metadata.json * require python 3.7+ in setup.py * remove python 3.6 sample configs * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * fix(deps): update extra for pandas >= 1.0.5 * exclude templated README * update README Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com> Co-authored-by: Anthonios Partheniou <partheniou@google.com>

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
  image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
- digest: sha256:b2dc5f80edcf5d4486c39068c9fa11f7f851d9568eea4dcba130f994ea9b5e97
-# created: 2022-06-12T16:09:31.61859086Z
+ digest: sha256:e7bb19d47c13839fe8c147e50e02e8b6cf5da8edd1af8b82208cd6f66cc2829c
+# created: 2022-07-05T18:31:20.838186805Z

.github/workflows/unittest.yml

@@ -8,7 +8,7 @@ jobs:
  runs-on: ubuntu-latest
  strategy:
  matrix:
- python: ['3.6', '3.7', '3.8', '3.9', '3.10']
+ python: ['3.7', '3.8', '3.9', '3.10']
  steps:
  - name: Checkout
  uses: actions/checkout@v3

.kokoro/samples/python3.6/common.cfg

@@ -33,7 +33,7 @@ export PYTHONUNBUFFERED=1
 env | grep KOKORO
 
 # Install nox
-python3.6 -m pip install --upgrade --quiet nox
+python3.9 -m pip install --upgrade --quiet nox
 
 # Use secrets acessor service account to get secrets
 if [[ -f "${KOKORO_GFILE_DIR}/secrets_viewer_service_account.json" ]]; then
@@ -76,7 +76,7 @@ for file in samples/**/requirements.txt; do
  echo "------------------------------------------------------------"
 
  # Use nox to execute the tests for the project.
- python3.6 -m nox -s "$RUN_TESTS_SESSION"
+ python3.9 -m nox -s "$RUN_TESTS_SESSION"
  EXIT=$?
 
  # If this is a periodic build, send the test log to the FlakyBot.

.kokoro/samples/python3.6/continuous.cfg

@@ -13,5 +13,6 @@
  "requires_billing": true,
  "default_version": "v1",
  "codeowner_team": "@googleapis/cdpe-cloudai",
- "api_shortname": "automl"
+ "api_shortname": "automl",
+ "api_description": "makes the power of machine learning available to you even if you have limited knowledge of machine learning. You can use AutoML to build on Google's machine learning capabilities to create your own custom machine learning models that are tailored to your business needs, and then integrate those models into your applications and web sites."
 }

.kokoro/samples/python3.6/periodic-head.cfg

@@ -22,7 +22,7 @@ In order to add a feature:
  documentation.
 
 - The feature must work fully on the following CPython versions:
- 3.6, 3.7, 3.8, 3.9 and 3.10 on both UNIX and Windows.
+ 3.7, 3.8, 3.9 and 3.10 on both UNIX and Windows.
 
 - The feature must not add unnecessary dependencies (where
  "unnecessary" is of course subjective, but new dependencies should
@@ -221,13 +221,11 @@ Supported Python Versions
 
 We support:
 
-- `Python 3.6`_
 - `Python 3.7`_
 - `Python 3.8`_
 - `Python 3.9`_
 - `Python 3.10`_
 
-.. _Python 3.6: https://docs.python.org/3.6/
 .. _Python 3.7: https://docs.python.org/3.7/
 .. _Python 3.8: https://docs.python.org/3.8/
 .. _Python 3.9: https://docs.python.org/3.9/
@@ -239,7 +237,7 @@ Supported versions can be found in our ``noxfile.py`` `config`_.
 .. _config: https://github.com/googleapis/python-automl/blob/main/noxfile.py
 
 
-We also explicitly decided to support Python 3 beginning with version 3.6.
+We also explicitly decided to support Python 3 beginning with version 3.7.
 Reasons for this include:
 
 - Encouraging use of newest versions of Python 3