Rearrange the imports to meet the style guide

This also includes `from __future__ import absolute_import`
in every file so that the imports are consistent in Python 2 and 3.
The Python 2 tests fail without this.

module_build_service/common/config.py

@@ -1,13 +1,14 @@
 # -*- coding: utf-8 -*-
 # SPDX-License-Identifier: MIT
+from __future__ import absolute_import
 import imp
 import logging
 import os
-import pkg_resources
 import re
 import sys
 import tempfile
 
+import pkg_resources
 from six import string_types
 
 from module_build_service.common import logger

module_build_service/common/errors.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 # SPDX-License-Identifier: MIT
 """ Defines custom exceptions and error handling functions """
+
+from __future__ import absolute_import
+
 from flask import jsonify
 
 

module_build_service/common/logger.py

@@ -19,6 +19,7 @@ logging.warning("%s failed to build", task_id)
 
 """
 
+from __future__ import absolute_import
 import os
 import logging
 import inspect

module_build_service/common/messaging.py

@@ -2,11 +2,12 @@
 # SPDX-License-Identifier: MIT
 """Generic messaging functions."""
 
+from __future__ import absolute_import
+
 import pkg_resources
 
-from module_build_service.scheduler.parser import FedmsgMessageParser
-
 from module_build_service import conf, log
+from module_build_service.scheduler.parser import FedmsgMessageParser
 
 
 def publish(topic, msg, conf, service):

module_build_service/common/models.py

@@ -3,23 +3,24 @@
 """ SQLAlchemy Database models for the Flask app
 """
 
-import hashlib
-import json
-import koji
-import re
+from __future__ import absolute_import
 from collections import OrderedDict, namedtuple
 from datetime import datetime
+import hashlib
+import json
+import re
 
-import sqlalchemy
 import kobo.rpmlib
+import koji
+import sqlalchemy
 from sqlalchemy import func, and_
 from sqlalchemy.orm import lazyload
 from sqlalchemy.orm import validates, load_only
 
 from module_build_service import db, log, get_url_for, conf
+from module_build_service.common.errors import UnprocessableEntity
 import module_build_service.common.messaging
 from module_build_service.common.utils import load_mmd
-from module_build_service.common.errors import UnprocessableEntity
 from module_build_service.scheduler import events
 
 DEFAULT_MODULE_CONTEXT = "00000000"

module_build_service/common/monitor.py

@@ -3,7 +3,7 @@
 
 # For an up-to-date version of this module, see:
 #   https://pagure.io/monitor-flask-sqlalchemy
-
+from __future__ import absolute_import
 import os
 import tempfile
 

module_build_service/common/request_utils.py

@@ -1,5 +1,7 @@
 # -*- coding: utf-8 -*-
 # SPDX-License-Identifier: MIT
+from __future__ import absolute_import
+
 import requests
 from requests.packages.urllib3.util.retry import Retry
 

module_build_service/common/resolve.py

@@ -1,5 +1,7 @@
 # -*- coding: utf-8 -*-
 # SPDX-License-Identifier: MIT
+from __future__ import absolute_import
+
 from module_build_service import conf
 from module_build_service.common.errors import StreamAmbigous
 from module_build_service.resolver import GenericResolver

module_build_service/common/retry.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 # SPDX-License-Identifier: MIT
+from __future__ import absolute_import
 import functools
 import time
 

module_build_service/common/scm.py

@@ -2,21 +2,22 @@
 # SPDX-License-Identifier: MIT
 """SCM handler functions."""
 
+from __future__ import absolute_import
+import datetime
 import os
 import subprocess as sp
 import re
-import tempfile
 import shutil
-import datetime
+import tempfile
 
 from module_build_service import log, conf
-from module_build_service.common.retry import retry
 from module_build_service.common.errors import (
     Forbidden,
     ValidationError,
     UnprocessableEntity,
     ProgrammingError,
 )
+from module_build_service.common.retry import retry
 
 
 def scm_url_schemes(terse=False):

module_build_service/common/submit.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 # SPDX-License-Identifier: MIT
+from __future__ import absolute_import
 import shutil
 import tempfile
 
@@ -7,8 +8,8 @@ import requests
 
 import module_build_service.common.scm
 from module_build_service import conf, log
-from module_build_service.common.utils import load_mmd_file
 from module_build_service.common.errors import ValidationError
+from module_build_service.common.utils import load_mmd_file
 
 
 def _is_eol_in_pdc(name, stream):

module_build_service/common/utils.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 # SPDX-License-Identifier: MIT
+from __future__ import absolute_import
 from datetime import datetime
 from functools import partial
 import os