Fix lint errors and python 2.7 tests (#53)

* Fix isort lint errors in tests/

* Fix py27 requirements

Author: relud

tests/constraints/python-2.7.txt

@@ -0,0 +1 @@
+pyrsistent<0.17

tests/core/test_logging.py

@@ -10,6 +10,7 @@
 
 import jsonschema
 import pytest
+
 from dockerflow.logging import JsonLogFormatter
 
 logger_name = "tests"

tests/django/test_django.py

@@ -12,6 +12,7 @@
 from django.db import connection
 from django.db.utils import OperationalError, ProgrammingError
 from django.test.utils import CaptureQueriesContext
+
 from dockerflow import health
 from dockerflow.django import checks
 from dockerflow.django.middleware import DockerflowMiddleware

tests/flask/test_flask.py

@@ -7,8 +7,6 @@
 
 import pytest
 import redis
-from dockerflow import health
-from dockerflow.flask import Dockerflow, checks
 from fakeredis import FakeStrictRedis
 from flask import Flask, Response, g, has_request_context, request
 from flask_login import LoginManager, current_user, login_user
@@ -18,6 +16,9 @@
 from flask_sqlalchemy import SQLAlchemy, get_debug_queries
 from sqlalchemy.exc import DBAPIError, SQLAlchemyError
 
+from dockerflow import health
+from dockerflow.flask import Dockerflow, checks
+
 
 class MockUser(UserMixin):
     def __init__(self, id):

tests/sanic/test_sanic.py

@@ -9,11 +9,12 @@
 import pytest
 import sanic.testing
 import sanic_redis.core
-from dockerflow import health
-from dockerflow.sanic import Dockerflow, checks
 from sanic import Sanic, response
 from sanic_redis import SanicRedis
 
+from dockerflow import health
+from dockerflow.sanic import Dockerflow, checks
+
 
 class FakeRedis:
     def __init__(self, error=None, **kw):

tox.ini

@@ -36,6 +36,7 @@ deps =
     fl012: -ctests/constraints/flask-0.12.txt
     fl10: -ctests/constraints/flask-1.0.txt
     s19: -ctests/constraints/sanic-19.txt
+    py27: -ctests/constraints/python-2.7.txt
 commands =
     python --version
     dj{111,21,22,30}-tests: pytest tests/core/ tests/django --nomigrations {posargs:}