Build improvements (#569)

* Black linting

* Adding Black to dev dependencies and upping minimal python to 3.6.2 for compatibility

* Updating packages

* Removing pip-tools input and exporting requirements with poetry

* Deleting old setup files and test runner

* Trying 1.3.7

* Looser extras requirements to prevent conflicts

* Sorted imports with isort

* Added iSort to dev dependencies

* Fixes localtime for naive setups

django_q/tests/settings.py

@@ -1,4 +1,5 @@
 import os
+
 import django
 
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
@@ -8,7 +9,7 @@ BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 # See https://docs.djangoproject.com/en/2.2/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = ')cqmpi+p@n&!u&fu@!m@9h&1bz9mwmstsahe)nf!ms+c$uc=x7'
+SECRET_KEY = ")cqmpi+p@n&!u&fu@!m@9h&1bz9mwmstsahe)nf!ms+c$uc=x7"
 
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
@@ -19,41 +20,41 @@ ALLOWED_HOSTS = []
 # Application definition
 
 INSTALLED_APPS = (
-    'django.contrib.admin',
-    'django.contrib.auth',
-    'django.contrib.contenttypes',
-    'django.contrib.sessions',
-    'django.contrib.messages',
-    'django.contrib.staticfiles',
-    'django_q',
-    'django_redis'
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "django_q",
+    "django_redis",
 )
 
 
 MIDDLEWARE_CLASSES = (
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.common.CommonMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
 )
 
 MIDDLEWARE = MIDDLEWARE_CLASSES
 
-ROOT_URLCONF = 'tests.urls'
+ROOT_URLCONF = "tests.urls"
 
 TEMPLATES = [
     {
-        'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [],
-        'APP_DIRS': True,
-        'OPTIONS': {
-            'context_processors': [
-                'django.template.context_processors.debug',
-                'django.template.context_processors.request',
-                'django.contrib.auth.context_processors.auth',
-                'django.contrib.messages.context_processors.messages',
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
             ],
         },
     },
@@ -64,9 +65,9 @@ TEMPLATES = [
 # https://docs.djangoproject.com/en/2.2/ref/settings/#databases
 
 DATABASES = {
-    'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": os.path.join(BASE_DIR, "db.sqlite3"),
     }
 }
 
@@ -74,9 +75,9 @@ DATABASES = {
 # Internationalization
 # https://docs.djangoproject.com/en/2.2/topics/i18n/
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = 'UTC'
+TIME_ZONE = "UTC"
 
 USE_I18N = True
 
@@ -85,17 +86,17 @@ USE_L10N = True
 USE_TZ = True
 
 LOGGING = {
-    'version': 1,
-    'disable_existing_loggers': False,
-    'handlers': {
-        'console': {
-            'class': 'logging.StreamHandler',
+    "version": 1,
+    "disable_existing_loggers": False,
+    "handlers": {
+        "console": {
+            "class": "logging.StreamHandler",
         },
     },
-    'loggers': {
-        'django_q': {
-            'handlers': ['console'],
-            'level': 'INFO',
+    "loggers": {
+        "django_q": {
+            "handlers": ["console"],
+            "level": "INFO",
         },
     },
 }
@@ -103,7 +104,7 @@ LOGGING = {
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/2.2/howto/static-files/
 
-STATIC_URL = '/static/'
+STATIC_URL = "/static/"
 
 # Django Redis
 CACHES = {
@@ -113,13 +114,15 @@ CACHES = {
         "OPTIONS": {
             "CLIENT_CLASS": "django_redis.client.DefaultClient",
             "PARSER_CLASS": "redis.connection.HiredisParser",
-        }
+        },
     }
 }
 
 # Django Q specific
-Q_CLUSTER = {'name': 'django_q_test',
-             'cpu_affinity': 1,
-             'testing': True,
-             'log_level': 'DEBUG',
-             'django_redis': 'default'}
+Q_CLUSTER = {
+    "name": "django_q_test",
+    "cpu_affinity": 1,
+    "testing": True,
+    "log_level": "DEBUG",
+    "django_redis": "default",
+}