Update python version (#285)

Author: hughesjj

semantic-conventions/CHANGELOG.md

@@ -4,6 +4,8 @@ Please update the changelog as part of any significant pull request.
 
 ## Unreleased
 
+- Change minimum support python version to 3.10 in setup.cfg and Dockerfile
+  ([#285](https://github.com/open-telemetry/build-tools/pull/285))
 - BREAKING: Make stability required (also: fix ref and extends, render badges on metrics).
   ([#272](https://github.com/open-telemetry/build-tools/pull/272))
 - BREAKING: Make stability and deprecation independent properties.

semantic-conventions/CONTRIBUTING.md

@@ -48,10 +48,11 @@ _Note:_ `venv` integrations exist for IDEs such as [PyCharm](https://www.jetbrai
 
 See the offical documents for creating and [using](https://docs.python.org/3/tutorial/venv.html) a [venv environment](https://docs.python.org/3/library/venv.html).  All "python" commands listed in this document should be run in an activated `venv`.
 
+**Note**, ensure the venv you create is using the earliest supported version of python as defined in `setup.cfg`
 
 ```bash
 # note that it's convention to not store your venv in your working directory, lest build tooling "pick up" venv configuration.
-python3 -m venv ../semconvgen
+python3.10 -m venv ../semconvgen
 source ../semconvgen/bin/activate
 # Run your pip/wheel commands as described elsewhere in this documentation here.
 # reset your environment by typing 'deactivate' or by exiting your TTY

semantic-conventions/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9.5-alpine3.12
+FROM python:3.10-alpine
 LABEL maintainer="The OpenTelemetry Authors"
 ADD *.whl /semconvgen/
 WORKDIR /semconvgen

semantic-conventions/setup.cfg

@@ -26,12 +26,13 @@ classifiers =
     License :: OSI Approved :: Apache Software License
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
-    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 :: 3.13
 [options]
-python_requires = >=3.6
+# Ensure this remains synced with our Dockerfile
+python_requires = >=3.10
 package_dir=
     =src
 packages=find_namespace: