Drop support for EOL Python versions, keep Python 3.7 to 3.10

Author: amotl

.github/workflows/nightly.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.5, 3.6, 3.7, 3.8, 3.9]
+        python-version: ['3.7', '3.8', '3.9', '3.10']
         cratedb-version: ['nightly']
         sqla-version: ['1.3.24']
       fail-fast: false

.github/workflows/tests.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: ['3.5', '3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10']
         cratedb-version: ['4.8.0']
         sqla-version: ['1.3.24']
       fail-fast: true

CHANGES.txt

@@ -5,7 +5,10 @@ Changes for crate
 Unreleased
 ==========
 
-- Added official support for Python 3.9 and 3.10.
+- Added support for Python 3.9 and 3.10.
+
+- Dropped support for Python 3.4, 3.5 and 3.6.
+
 - Dropped support for SQLAlchemy 1.1 and 1.2.
 
 - Dropped support for CrateDB < 2.0.0.

README.rst

@@ -51,10 +51,9 @@ This library:
 Prerequisites
 =============
 
-Recent versions of this library require **Python 3** (>= 3.4) to run.
+Recent versions of this library are validated on Python 3 (>= 3.7).
+It might also work on earlier versions of Python.
 
-Use version ``0.21.x`` if you are running Python 2.7/3.3 or version ``0.14.x``
-if you are running Python 2.6.
 
 Installation
 ============
@@ -69,9 +68,6 @@ To update, run::
 
     $ pip install -U crate
 
-If you use Python 2.7 or 3.3 with a recent version of pip_, it will install
-only version ``0.21.x`` by default, because newer versions of this package are
-not compatible with Python 2.7/3.3 any more.
 
 Contributing
 ============

devtools/setup_ci.sh

@@ -48,9 +48,6 @@ function main() {
 
   python -m pip install --upgrade pip
 
-  # Workaround needed for Python 3.5
-  python -m pip install --upgrade "setuptools>=31,<51"
-
   pip install zc.buildout==2.13.4
 
   # Replace SQLAlchemy version.

setup.py

@@ -79,9 +79,6 @@ def read(path):
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',