Sort imports

Author: hugovk

tests/test_pytest_cov.py

@@ -6,6 +6,7 @@
 import re
 import subprocess
 import sys
+from io import StringIO
 from itertools import chain
 
 import coverage
@@ -20,8 +21,6 @@
 
 import pytest_cov.plugin
 
-from io import StringIO
-
 coverage, platform  # required for skipif mark on test_cov_min_from_coveragerc
 
 max_worker_restart_0 = '--max-worker-restart=0'