Fix cyclic import

Author: nedbat

coverage/__init__.py

@@ -10,12 +10,13 @@
 
 import sys
 
+from coverage.version import __version__, __url__, version_info
+
 from coverage.control import Coverage, process_startup
 from coverage.data import CoverageData
 from coverage.misc import CoverageException
 from coverage.plugin import CoveragePlugin, FileTracer, FileReporter
 from coverage.pytracer import PyTracer
-from coverage.version import __version__, __url__, version_info
 
 # Backward compatibility.
 coverage = Coverage