Remove Python 3.8 from various places (#10861) (#10873)

* Remove Python 3.8 from various places

* Add changelog entry.

---------

Co-authored-by: Gerda Shank <[email protected]>

.changes/unreleased/Under the Hood-20241016-144056.yaml

@@ -0,0 +1,6 @@
+kind: Under the Hood
+body: Remove support and testing for Python 3.8, which is now EOL.
+time: 2024-10-16T14:40:56.451972-04:00
+custom:
+  Author: gshank peterallenwebb
+  Issue: "10861"

.github/workflows/main.yml

@@ -47,7 +47,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.8'
+          python-version: '3.9'
 
       - name: Install python dependencies
         run: |
@@ -73,7 +73,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: [ "3.9", "3.10", "3.11" ]
 
     env:
       TOXENV: "unit"
@@ -124,12 +124,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: [ "3.9", "3.10", "3.11" ]
         os: [ubuntu-20.04]
         include:
-          - python-version: 3.8
+          - python-version: 3.9
             os: windows-latest
-          - python-version: 3.8
+          - python-version: 3.9
             os: macos-12
 
     env:
@@ -211,7 +211,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.8'
+          python-version: '3.9'
 
       - name: Install python dependencies
         run: |

.github/workflows/schema-check.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.9
 
       - name: Checkout dbt repo
         uses: actions/checkout@v4

.github/workflows/structured-logging-schema-check.yml

@@ -44,7 +44,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.8"
+          python-version: "3.9"
 
       - name: Install python dependencies
         run: |

.github/workflows/test-repeater.yml

@@ -27,7 +27,6 @@ on:
         description: 'Version of Python to Test Against'
         type: choice
         options:
-          - '3.8'
           - '3.9'
           - '3.10'
           - '3.11'

.pre-commit-config.yaml

@@ -4,7 +4,7 @@
 # TODO: remove global exclusion of tests when testing overhaul is complete
 exclude: ^(test/|core/dbt/docs/build/)
 
-# Force all unspecified python hooks to run python 3.8
+# Force all unspecified python hooks to run python 3.9
 default_language_version:
   python: python3
 

Dockerfile.test

@@ -30,19 +30,9 @@ RUN apt-get update \
     unixodbc-dev \
     && add-apt-repository ppa:deadsnakes/ppa \
     && apt-get install -y \
-    python \
-    python-dev \
+    python-is-python3 \
+    python-dev-is-python3 \
     python3-pip \
-    python3.6 \
-    python3.6-dev \
-    python3-pip \
-    python3.6-venv \
-    python3.7 \
-    python3.7-dev \
-    python3.7-venv \
-    python3.8 \
-    python3.8-dev \
-    python3.8-venv \
     python3.9 \
     python3.9-dev \
     python3.9-venv \

core/setup.py

@@ -2,9 +2,9 @@
 import os
 import sys
 
-if sys.version_info < (3, 7, 2):
+if sys.version_info < (3, 9):
     print("Error: dbt does not support this version of Python.")
-    print("Please upgrade to Python 3.7.2 or higher.")
+    print("Please upgrade to Python 3.9 or higher.")
     sys.exit(1)
 
 
@@ -79,11 +79,9 @@
         "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",
         "Programming Language :: Python :: 3.11",
     ],
-    python_requires=">=3.7.2",
+    python_requires=">=3.9",
 )