Drop support for 3.7 (#3668)

* Drop support for 3.7

Fixes #3667

* Remove 37

.github/workflows/release.yml

@@ -66,7 +66,7 @@ jobs:
         # next few steps publish to pypi
       - uses: actions/setup-python@v1
         with:
-          python-version: '3.7'
+          python-version: '3.8'
 
       - name: Build wheels
         run: ./scripts/build.sh

.github/workflows/test.yml

@@ -23,19 +23,18 @@ jobs:
   build:
     env:
       # We use these variables to convert between tox and GHA version literals
-      py37: 3.7
       py38: 3.8
       py39: 3.9
       py310: "3.10"
       py311: "3.11"
-      pypy3: pypy-3.7
+      pypy3: pypy-3.8
       RUN_MATRIX_COMBINATION: ${{ matrix.python-version }}-${{ matrix.package }}-${{
         matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false  # ensures the entire test matrix is run, even if one permutation fails
       matrix:
-        python-version: [py37, py38, py39, py310, py311, pypy3]
+        python-version: [py38, py39, py310, py311, pypy3]
         package:
           - "api"
           - "sdk"
@@ -115,17 +114,17 @@ jobs:
       run: tox -e ${{ matrix.tox-environment }}
 
   # Contrib unit test suite in order to ensure changes in core do not break anything in contrib.
-  # We only run contrib unit tests on the oldest supported Python version (3.7) as running the same tests
+  # We only run contrib unit tests on the oldest supported Python version (3.8) as running the same tests
   # on all versions is somewhat redundant.
   contrib-build:
     env:
       # We use these variables to convert between tox and GHA version literals
-      py37: 3.7
+      py38: 3.8
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false  # ensures the entire test matrix is run, even if one permutation fails
       matrix:
-        python-version: [py37]
+        python-version: [py38]
         package:
           - "aiohttp-client"
           - "aiohttp-server"

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Drop support for 3.7
+  ([#3668](https://github.com/open-telemetry/opentelemetry-python/pull/3668))
 - Include key in attribute sequence warning
   ([#3639](https://github.com/open-telemetry/opentelemetry-python/pull/3639))
 - Upgrade markupsafe, Flask and related dependencies to dev and test

CONTRIBUTING.md

@@ -52,7 +52,7 @@ You can run `tox` with the following arguments:
   under multiple Python versions
 - `tox -e docs` to regenerate the API docs
 - `tox -e opentelemetry-api` and `tox -e opentelemetry-sdk` to run the API and SDK unit tests
-- `tox -e py37-opentelemetry-api` to e.g. run the API unit tests under a specific
+- `tox -e py311-opentelemetry-api` to e.g. run the API unit tests under a specific
   Python version
 - `tox -e spellcheck` to run a spellcheck on all the code
 - `tox -e lint` to run lint checks on all code

README.md

@@ -1,7 +1,7 @@
 # OpenTelemetry Python
 [![Slack](https://img.shields.io/badge/slack-@cncf/otel/python-brightgreen.svg?logo=slack)](https://cloud-native.slack.com/archives/C01PD4HUVBL)
 [![Build Status](https://github.com/open-telemetry/opentelemetry-python/actions/workflows/test.yml/badge.svg?branch=main)](https://github.com/open-telemetry/opentelemetry-python/actions)
-[![Minimum Python Version](https://img.shields.io/badge/python-3.7+-blue.svg)](https://www.python.org/downloads/)
+[![Minimum Python Version](https://img.shields.io/badge/python-3.8+-blue.svg)](https://www.python.org/downloads/)
 [![Release](https://img.shields.io/github/v/release/open-telemetry/opentelemetry-python?include_prereleases&style=)](https://github.com/open-telemetry/opentelemetry-python/releases/)
 [![Read the Docs](https://readthedocs.org/projects/opentelemetry-python/badge/?version=latest)](https://opentelemetry-python.readthedocs.io/en/latest/)
 

docs/examples/error_handler/error_handler_0/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "This is just an error handler example package"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

docs/examples/error_handler/error_handler_1/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "This is just an error handler example package"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

exporter/opentelemetry-exporter-opencensus/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "OpenCensus Exporter"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

exporter/opentelemetry-exporter-otlp-proto-common/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "OpenTelemetry Protobuf encoding"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,16 +18,14 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "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",
 ]
 dependencies = [
   "opentelemetry-proto == 1.23.0.dev",
-  "backoff >= 1.10.0, < 2.0.0; python_version<'3.7'",
-  "backoff >= 1.10.0, < 3.0.0; python_version>='3.7'",
+  "backoff >= 1.10.0, < 3.0.0; python_version>='3.8'",
 ]
 
 [project.optional-dependencies]

exporter/opentelemetry-exporter-otlp-proto-grpc/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "OpenTelemetry Collector Protobuf over gRPC Exporter"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,15 +18,14 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "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",
 ]
 dependencies = [
   "Deprecated >= 1.2.6",
-  "backoff >= 1.8.0, < 3.0.0; python_version>='3.7'",
+  "backoff >= 1.8.0, < 3.0.0",
   "googleapis-common-protos ~= 1.52",
   "grpcio >= 1.0.0, < 2.0.0",
   "opentelemetry-api ~= 1.15",

exporter/opentelemetry-exporter-otlp-proto-http/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "OpenTelemetry Collector Protobuf over HTTP Exporter"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,16 +18,14 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "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",
 ]
 dependencies = [
   "Deprecated >= 1.2.6",
-  "backoff >= 1.10.0, < 2.0.0; python_version<'3.7'",
-  "backoff >= 1.10.0, < 3.0.0; python_version>='3.7'",
+  "backoff >= 1.10.0, < 3.0.0",
   "googleapis-common-protos ~= 1.52",
   "opentelemetry-api ~= 1.15",
   "opentelemetry-proto == 1.23.0.dev",

exporter/opentelemetry-exporter-otlp/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "OpenTelemetry Collector Exporters"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

exporter/opentelemetry-exporter-prometheus/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "Prometheus Metric Exporter for OpenTelemetry"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

exporter/opentelemetry-exporter-zipkin-json/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "Zipkin Span JSON Exporter for OpenTelemetry"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

exporter/opentelemetry-exporter-zipkin-proto-http/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "Zipkin Span Protobuf Exporter for OpenTelemetry"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

exporter/opentelemetry-exporter-zipkin/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "Zipkin Span Exporters for OpenTelemetry"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

opentelemetry-api/pyproject.toml

@@ -7,7 +7,7 @@ name = "opentelemetry-api"
 description = "OpenTelemetry Python API"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
     { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -17,7 +17,6 @@ classifiers = [
     "License :: OSI Approved :: Apache Software License",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",

opentelemetry-proto/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "OpenTelemetry Python Proto"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

opentelemetry-sdk/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "OpenTelemetry Python SDK"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",

opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/export/__init__.py

@@ -216,7 +216,6 @@ def __init__(
         self._flush_request = None
         self._log_records = [None] * self._max_export_batch_size
         self._worker_thread.start()
-        # Only available in *nix since py37.
         if hasattr(os, "register_at_fork"):
             os.register_at_fork(
                 after_in_child=self._at_fork_reinit

opentelemetry-sdk/src/opentelemetry/sdk/metrics/_internal/view.py

@@ -17,9 +17,6 @@
 from logging import getLogger
 from typing import Optional, Set, Type
 
-# FIXME import from typing when support for 3.7 is removed
-from typing_extensions import final
-
 from opentelemetry.metrics import Instrument
 from opentelemetry.sdk.metrics._internal.aggregation import (
     Aggregation,
@@ -138,7 +135,6 @@ def __init__(
 
     # pylint: disable=too-many-return-statements
     # pylint: disable=too-many-branches
-    @final
     def _match(self, instrument: Instrument) -> bool:
 
         if self._instrument_type is not None:

opentelemetry-sdk/src/opentelemetry/sdk/trace/export/__init__.py

@@ -203,7 +203,6 @@ def __init__(
             None
         ] * self.max_export_batch_size  # type: typing.List[typing.Optional[Span]]
         self.worker_thread.start()
-        # Only available in *nix since py37.
         if hasattr(os, "register_at_fork"):
             os.register_at_fork(
                 after_in_child=self._at_fork_reinit

opentelemetry-semantic-conventions/pyproject.toml

@@ -8,7 +8,7 @@ dynamic = ["version"]
 description = "OpenTelemetry Semantic Conventions"
 readme = "README.rst"
 license = "Apache-2.0"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 authors = [
   { name = "OpenTelemetry Authors", email = "[email protected]" },
 ]
@@ -18,7 +18,6 @@ classifiers = [
   "License :: OSI Approved :: Apache Software License",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.7",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",