--- a/tests/run-tests.py	Sat Jun 08 13:46:05 2013 +0100
+++ b/tests/run-tests.py	Thu Jun 13 19:37:59 2013 +0100
@@ -904,8 +904,7 @@
             return skip("blacklisted")
 
         if options.retest and not os.path.exists(test + ".err"):
-            ignore("not retesting")
-            return None
+            return ignore("not retesting")
 
         if options.keywords:
             fp = open(test)
@@ -915,8 +914,7 @@
                 if k in t:
                     break
                 else:
-                    ignore("doesn't match keyword")
-                    return None
+                    return ignore("doesn't match keyword")
 
     for ext, func, out in testtypes:
         if lctest.startswith("test-") and lctest.endswith(ext):
@@ -1091,7 +1089,7 @@
                 test = tests.pop(0)
                 if options.loop:
                     tests.append(test)
-                t = threading.Thread(None, job, args=(test, count))
+                t = threading.Thread(target=job, args=(test, count))
                 t.start()
                 running += 1
                 count += 1
@@ -1167,7 +1165,12 @@
         slow = 'svn gendoc check-code-hg'.split()
         def sortkey(f):
             # run largest tests first, as they tend to take the longest
-            val = -os.stat(f).st_size
+            try:
+                val = -os.stat(f).st_size
+            except OSError, e:
+                if e.errno != errno.ENOENT:
+                    raise
+                return -1e9 # file does not exist, tell early
             for kw in slow:
                 if kw in f:
                     val *= 10