Remove Python 3.8 support (#468)

* Preparing for Release v1.8.6

* Preparing for Release v1.8.6

* Drop Python 3.8 support

.github/workflows/main.yml

@@ -54,7 +54,7 @@ jobs:
 #      - name: Set up Python
 #        uses: actions/setup-python@v4
 #        with:
-#          python-version: '3.8'
+#          python-version: '3.9'
 #
 #      - name: Install python dependencies
 #        run: |
@@ -82,7 +82,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11"]
 
     env:
       TOXENV: "unit"
@@ -136,7 +136,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.8'
+          python-version: '3.9'
 
       - name: Install python dependencies
         run: |
@@ -182,7 +182,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11"]
 
     steps:
       - name: Set up Python ${{ matrix.python-version }}

CHANGELOG.md

@@ -5,7 +5,7 @@
 - Fixes the get_location table function to work for both Iceberg and non-Iceberg tables on macOS and Windows.
 - Adds a helper function to retrieve the Iceberg catalog namespace from the profile.yaml file.
 - Adds merge_exclude_columns and incremental_predicates features.
-
+- Drop Python 3.8 support
 
 ## v1.8.6
 - Fix session provisioning timeout and delay handling

setup.py

@@ -2,10 +2,10 @@
 import os
 import sys
 
-# require python 3.7 or newer
-if sys.version_info < (3, 8):
+# require python 3.9 or newer
+if sys.version_info < (3, 9):
     print('Error: dbt does not support this version of Python.')
-    print('Please upgrade to Python 3.8 or higher.')
+    print('Please upgrade to Python 3.9 or higher.')
     sys.exit(1)
 
 # require version of setuptools that supports find_namespace_packages
@@ -83,10 +83,9 @@ def get_version(rel_path):
         'Operating System :: MacOS :: MacOS X',
         'Operating System :: POSIX :: Linux',
 
-        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
     ],
-    python_requires=">=3.8",
+    python_requires=">=3.9",
 )