Drop support for py37 (#742) (#794)

* drop support for py37 * drop support for py37 * drop support for py37 Co-authored-by: Mike Alfare <[email protected]>
dbt-labs · Jun 28, 2023 · 70ce905 · 70ce905
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diff --git a/.changes/unreleased/Breaking Changes-20230530-174051.yaml b/.changes/unreleased/Breaking Changes-20230530-174051.yaml
@@ -0,0 +1,6 @@
+kind: Breaking Changes
+body: Drop support for python 3.7
+time: 2023-05-30T17:40:51.510639-04:00
+custom:
+  Author: mikealfare
+  Issue: dbt-labs/dbt-core/7082
diff --git a/.github/scripts/integration-test-matrix.js b/.github/scripts/integration-test-matrix.js
@@ -1,6 +1,6 @@
 module.exports = ({ context }) => {
   const defaultPythonVersion = "3.8";
-  const supportedPythonVersions = ["3.7", "3.8", "3.9", "3.10", "3.11"];
+  const supportedPythonVersions = ["3.8", "3.9", "3.10", "3.11"];
   const supportedAdapters = ["bigquery"];
 
   // if PR, generate matrix based on files changed and PR labels

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -71,7 +71,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
 
     env:
       TOXENV: "unit"
@@ -174,7 +174,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
 
     steps:
       - name: Set up Python ${{ matrix.python-version }}

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -67,7 +67,7 @@ $EDITOR test.env
 There are a few methods for running tests locally.
 
 #### `tox`
-`tox` takes care of managing Python virtualenvs and installing dependencies in order to run tests. You can also run tests in parallel, for example you can run unit tests for Python 3.7, Python 3.8, Python 3.9, and `flake8` checks in parallel with `tox -p`. Also, you can run unit tests for specific python versions with `tox -e py37`. The configuration of these tests are located in `tox.ini`.
+`tox` takes care of managing Python virtualenvs and installing dependencies in order to run tests. You can also run tests in parallel, for example you can run unit tests for Python 3.8, Python 3.9, Python 3.10, Python 3.11, and `flake8` checks in parallel with `tox -p`. Also, you can run unit tests for specific python versions with `tox -e py38`. The configuration of these tests are located in `tox.ini`.
 
 #### `pytest`
 Finally, you can also run a specific test or group of tests using `pytest` directly. With a Python virtualenv active and dev dependencies installed you can do things like:

diff --git a/dev-requirements.txt b/dev-requirements.txt
@@ -8,25 +8,22 @@ git+https://github.com/dbt-labs/[email protected]#egg=dbt-tests-adapter&su
 black~=23.1
 bumpversion~=0.6.0
 click~=8.1
-flake8~=5.0;python_version=="3.7"
-flake8~=6.0;python_version>="3.8"
+flake8~=6.0
 flaky~=3.7
 freezegun~=1.2
-ipdb~=0.13.11
-mypy==1.0.1  # patch updates have historically introduced breaking changes
-pip-tools~=6.12
-pre-commit~=2.21;python_version=="3.7"
-pre-commit~=3.1;python_version>="3.8"
+ipdb~=0.13.13
+mypy==1.2.0  # patch updates have historically introduced breaking changes
+pip-tools~=6.13
+pre-commit~=3.2
 pre-commit-hooks~=4.4
 pytest~=7.2
 pytest-csv~=3.0
 pytest-dotenv~=0.5.2
 pytest-logbook~=1.2
 pytest-xdist~=3.2
-pytz~=2022.7
-tox~=3.0;python_version=="3.7"
-tox~=4.4;python_version>="3.8"
-types-pytz~=2022.7
+pytz~=2023.3
+tox~=4.4
+types-pytz~=2023.3
 types-requests~=2.28
 types-protobuf~=4.0
 twine~=4.0

diff --git a/setup.py b/setup.py
@@ -2,9 +2,9 @@
 import sys
 
 # require python 3.7 or newer
-if sys.version_info < (3, 7):
+if sys.version_info < (3, 8):
     print("Error: dbt does not support this version of Python.")
-    print("Please upgrade to Python 3.7 or higher.")
+    print("Please upgrade to Python 3.8 or higher.")
     sys.exit(1)
 
 try:
@@ -87,7 +87,6 @@ def _dbt_core_version(plugin_version: str) -> str:
         "Operating System :: Microsoft :: Windows",
         "Operating System :: MacOS :: MacOS X",
         "Operating System :: POSIX :: Linux",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",

diff --git a/tox.ini b/tox.ini
@@ -1,8 +1,8 @@
 [tox]
 skipsdist = True
-envlist = py37,py38,py39,py310,py311
+envlist = py38,py39,py310,py311
 
-[testenv:{unit,py37,py38,py39,py310,py311,py}]
+[testenv:{unit,py38,py39,py310,py311,py}]
 description = unit testing
 skip_install = true
 passenv =
@@ -13,7 +13,7 @@ deps =
   -rdev-requirements.txt
   -e.
 
-[testenv:{integration,py37,py38,py39,py310,py311,py}-{bigquery}]
+[testenv:{integration,py38,py39,py310,py311,py}-{bigquery}]
 description = adapter plugin integration testing
 skip_install = true
 passenv =
@@ -28,7 +28,7 @@ deps =
   -rdev-requirements.txt
   -e.
 
-[testenv:{python-tests,py37,py38,py39,py310,py311,py}]
+[testenv:{python-tests,py38,py39,py310,py311,py}]
 description = python integration testing
 skip_install = true
 passenv =