scrapy contracts: python2.6 compat

scrapy/commands/check.py

@@ -1,6 +1,6 @@
 from collections import defaultdict
 from functools import wraps
-from unittest.runner import TextTestRunner
+from unittest import TextTestRunner
 
 from scrapy import signals
 from scrapy.command import ScrapyCommand

scrapy/contracts/__init__.py

@@ -1,7 +1,7 @@
 import sys
 import re
 from functools import wraps
-from unittest.case import TestCase
+from unittest import TestCase
 
 from scrapy.http import Request
 from scrapy.utils.spider import iterate_spider_output

scrapy/tests/test_contracts.py

@@ -1,4 +1,4 @@
-from unittest.runner import TextTestRunner
+from unittest import TextTestRunner
 
 from twisted.trial import unittest