Drop Py2.7, 3.5 and Django 1.11, 2.0, 2.1, 3.0

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 4.0.0
+
+- Drop support for Python 2.7 and 3.5
+- Drop support for Django 1.11, 2.0, 2.1, 3.0
+
 ## 3.0.1
 
 Fixed bug:

django_migration_linter/migration_linter.py

@@ -5,7 +5,6 @@ import inspect
 import logging
 import os
 import re
-import sys
 from enum import Enum, unique
 from subprocess import PIPE, Popen
 
@@ -26,8 +25,6 @@ from .utils import clean_bytes_to_str, get_migration_abspath, split_migration_pa
 
 logger = logging.getLogger("django_migration_linter")
 
-PY2 = sys.version_info[0] == 2
-
 
 @unique
 class MessageType(Enum):
@@ -465,11 +462,7 @@ class MigrationLinter(object):
                 warning.append(issue)
 
         # Detect warning for argument naming convention
-        args_spec = (
+        args_spec = inspect.getfullargspec(runpython.code)
-            inspect.getargspec(runpython.code)
-            if PY2
-            else inspect.getfullargspec(runpython.code)
-        )
         if tuple(args_spec.args) != EXPECTED_DATA_MIGRATION_ARGS:
             issue = {
                 "code": "RUNPYTHON_ARGS_NAMING_CONVENTION",

docs/internals/publishing.md

@@ -3,5 +3,5 @@
 A small note on how the linter is usually published to PyPi:
 
 - `python3 setup.py sdist bdist_wheel --universal`
-- `twine upload dist/django_migration_linter-X.Y.Z-py2.py3-none-any.whl dist/django-migration-linter-X.Y.Z.tar.gz`
+- `twine upload dist/django_migration_linter-X.Y.Z-py3-none-any.whl dist/django-migration-linter-X.Y.Z.tar.gz`
 

setup.py

@@ -32,9 +32,8 @@ setup(
     license="Apache License 2.0",
     packages=find_packages(include=["django_migration_linter*"]),
     install_requires=[
-        "django>=1.11",
+        "django>=2.2",
         "appdirs>=1.4.3",
-        'enum34>=1.1.6;python_version<"3.4"',
         "toml>=0.10.2",
     ],
     extras_require={
@@ -43,8 +42,6 @@ setup(
             "mysqlclient>=1.4.6,<2",
             "psycopg2-binary>=2.8.5,<2.9",
             "django_add_default_value>=0.4.0",
-            'mock>=3.0.5;python_version<"3.3"',
-            'backports.tempfile>=1.0;python_version<="2.7"',
             "coverage>=5.5",
         ],
     },
@@ -54,18 +51,11 @@ setup(
         "Intended Audience :: Developers",
         "Environment :: Web Environment",
         "Framework :: Django",
-        "Framework :: Django :: 1.11",
-        "Framework :: Django :: 2.0",
-        "Framework :: Django :: 2.1",
         "Framework :: Django :: 2.2",
-        "Framework :: Django :: 3.0",
         "Framework :: Django :: 3.1",
         "Framework :: Django :: 3.2",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",

tests/functional/test_cache.py

@@ -1,6 +1,6 @@
 import os
-import sys
 import unittest
+import unittest.mock as mock
 
 from django.conf import settings
 from django.db.migrations import Migration
@@ -12,11 +12,6 @@ from django_migration_linter import (
     get_migration_abspath,
 )
 
-if sys.version_info >= (3, 3):
-    import unittest.mock as mock
-else:
-    import mock
-
 
 class OperationsIgnoreMigration(Migration):
     operations = [IgnoreMigration()]

tests/functional/test_makemigrations_command.py

@@ -1,20 +1,10 @@
 import os
 import shutil
-import sys
+import tempfile
+import unittest.mock as mock
 from contextlib import contextmanager
 from importlib import import_module
-
+from io import StringIO
-if sys.version_info >= (3, 3):
-    import unittest.mock as mock
-else:
-    import mock
-
-if sys.version_info.major >= 3:
-    import tempfile
-    from io import StringIO as StringIO
-else:
-    from backports import tempfile
-    from io import BytesIO as StringIO
 
 from django.apps import apps
 from django.conf import settings

tox.ini

@@ -1,16 +1,12 @@
 [tox]
 envlist =
-    py27-django111
+    py{36,37,38,39}-django22
-    py{35,36,37,38}-django{111,20,21}
+    py{36,37,38,39}-django{31,32}
-    py{35,36,37,38,39}-django22
-    py{36,37,38,39}-django{30,31,32}
     lint
     coverage
 
 [gh-actions]
 python =
-    2.7: py27
-    3.5: py35
     3.6: py36
     3.7: py37
     3.8: py38
@@ -21,16 +17,12 @@ commands = ./manage.py test --no-input {posargs}
 extras = test
 pip_pre = true
 deps =
-    django111: django>=1.11,<2.0
-    django20: django>=2.0,<2.1
-    django21: django>=2.1,<2.2
     django22: django>=2.2,<2.3
-    django30: django>=3.0,<3.1
     django31: django>=3.1,<3.2
     django32: django>=3.2,<3.3
 
 [testenv:lint]
-basepython = python3.6
+basepython = python3.8
 deps =
     -r requirements/dev.txt
 commands =