Drop Support for Python 3.5 and 3.6

.github/workflows/pythonbuild.yml

@@ -13,8 +13,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - python-version: "3.6"
-            tox-env: py36-core
           - python-version: "3.7"
             tox-env: py37-core
           - python-version: "3.8"
@@ -82,8 +80,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - python-version: "3.6"
-            tox-env: py36-postgres
           - python-version: "3.7"
             tox-env: py37-postgres
           - python-version: "3.8"
@@ -137,8 +133,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - python-version: "3.6"
-            tox-env: py36-aws
           - python-version: "3.7"
             tox-env: py37-aws
           - python-version: "3.8"
@@ -152,9 +146,6 @@ jobs:
           - python-version: "3.12"
             tox-env: py312-aws
 
-          - python-version: "3.6"
-            tox-env: py36-unixsocket
-            OVERRIDE_SKIP_CI_TESTS: True
           - python-version: "3.7"
             tox-env: py37-unixsocket
             OVERRIDE_SKIP_CI_TESTS: True
@@ -174,8 +165,6 @@ jobs:
             tox-env: py312-unixsocket
             OVERRIDE_SKIP_CI_TESTS: True
 
-          - python-version: "3.6"
-            tox-env: py36-apache
           - python-version: "3.7"
             tox-env: py37-apache
           - python-version: "3.8"
@@ -189,8 +178,6 @@ jobs:
           - python-version: "3.12"
             tox-env: py312-apache
 
-          - python-version: "3.6"
-            tox-env: py36-azureblob
           - python-version: "3.7"
             tox-env: py37-azureblob
           - python-version: "3.8"

README.rst

@@ -18,7 +18,7 @@
     :target: https://luigi.readthedocs.io/en/stable/?badge=stable
     :alt: Documentation Status
 
-Luigi is a Python (3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12 tested) package that helps you build complex
+Luigi is a Python (3.7, 3.8, 3.9, 3.10, 3.11, 3.12 tested) package that helps you build complex
 pipelines of batch jobs. It handles dependency resolution, workflow management,
 visualization, handling failures, command line integration, and much more.
 

doc/configuration.rst

@@ -32,7 +32,7 @@ These files are meant for both the client and ``luigid``.
 If you decide to specify your own configuration you should make sure
 that both the client and ``luigid`` load it properly.
 
-.. _ConfigParser.read: https://docs.python.org/3.6/library/configparser.html#configparser.ConfigParser.read
+.. _ConfigParser.read: https://docs.python.org/3/library/configparser.html#configparser.ConfigParser.read
 
 The config file is broken into sections, each controlling a different part of the config.
 

setup.py

@@ -37,7 +37,7 @@ def get_static_files(path):
 with open('README.rst') as fobj:
     long_description = "\n\n" + readme_note + "\n\n" + fobj.read()
 
-install_requires = ['python-dateutil>=2.7.5,<3', 'tenacity>=8,<9']
+install_requires = ['python-dateutil>=2.7.5,<3', 'tenacity>=8,<9', 'tornado>=5.0,<7']
 
 # Can't use python-daemon>=2.2.0 if on windows
 #     See https://pagure.io/python-daemon/issue/18
@@ -46,19 +46,6 @@ def get_static_files(path):
 else:
     install_requires.append('python-daemon')
 
-# Start from tornado 6, the minimum supported Python version is 3.5.2.
-if sys.version_info[:3] >= (3, 5, 2):
-    install_requires.append('tornado>=5.0,<7')
-else:
-    install_requires.append('tornado>=5.0,<6')
-
-# Note: To support older versions of setuptools, we're explicitly not
-#   using conditional syntax (i.e. 'enum34>1.1.0;python_version<"3.4"').
-#   This syntax is a problem for setuptools as recent as `20.1.1`,
-#   published Feb 16, 2016.
-if sys.version_info[:2] < (3, 4):
-    install_requires.append('enum34>1.1.0')
-
 if os.environ.get('READTHEDOCS', None) == 'True':
     # So that we can build documentation for luigi.db_task_history and luigi.contrib.sqla
     install_requires.append('sqlalchemy')
@@ -111,8 +98,6 @@ def get_static_files(path):
         'Intended Audience :: Developers',
         'Intended Audience :: System Administrators',
         'License :: OSI Approved :: Apache Software License',
-        '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',

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{35,36,37,38,39,310,311,312}-{cdh,hdp,core,contrib,apache,aws,gcloud,postgres,unixsocket,azureblob,dropbox}, visualiser, docs, flake8
+envlist = py{37,38,39,310,311,312}-{cdh,hdp,core,contrib,apache,aws,gcloud,postgres,unixsocket,azureblob,dropbox}, visualiser, docs, flake8
 skipsdist = True
 
 [pytest]