tests: Move __init__ logic into functions, for clarity

tests/__init__.py

@@ -32,8 +32,17 @@ reload(cliconfig)
 
 from tests import utils
 
+# Variable used to store a local iso or dir path to check for a distro
+# Specified via 'python setup.py test_urls --path"
+URLTEST_LOCAL_MEDIA = []
 
-# Setup logging
+virtinstall = None
+virtclone = None
+virtconvert = None
+virtxml = None
+
+
+def _setup_logging():
     rootLogger = logging.getLogger()
     for handler in rootLogger.handlers:
         rootLogger.removeHandler(handler)
@@ -46,25 +55,29 @@ if utils.get_debug():
     else:
         rootLogger.setLevel(logging.ERROR)
 
+
+def _setup_cli_imports():
     _cleanup_imports = []
 
-
-def _import(name, path):
-    _cleanup_imports.append(path + "c")
-    return imp.load_source(name, path)
-
-
     def _cleanup_imports_cb():
         for f in _cleanup_imports:
             if os.path.exists(f):
                 os.unlink(f)
 
+    def _import(name, path):
+        _cleanup_imports.append(path + "c")
+        return imp.load_source(name, path)
+
+    global virtinstall
+    global virtclone
+    global virtconvert
+    global virtxml
     atexit.register(_cleanup_imports_cb)
     virtinstall = _import("virtinstall", "virt-install")
     virtclone = _import("virtclone", "virt-clone")
     virtconvert = _import("virtconvert", "virt-convert")
     virtxml = _import("virtxml", "virt-xml")
 
-# Variable used to store a local iso or dir path to check for a distro
-# Specified via 'python setup.py test_urls --path"
-URLTEST_LOCAL_MEDIA = []
+
+_setup_logging()
+_setup_cli_imports()