Maybe we're done with the scourge of failed tree deletes on Windows?

1 files changed, 12 insertions, 14 deletions

diff --git a/test/test_farm.py b/test/test_farm.py
index 405c68d..08e51cd 100644
--- a/test/test_farm.py
+++ b/test/test_farm.py
@@ -295,20 +295,18 @@ class FarmTestCase(object):
     def clean(self, cleandir):
         """Clean `cleandir` by removing it and all its children completely."""
         if os.path.exists(cleandir):
-            # rmtree gives mysterious failures on Win7, so use an onerror
-            # function that tries to help diagnose the problem.  Somehow, just
-            # having a function that prints and raises keeps the error from
-            # happening??
-            shutil.rmtree(cleandir, onerror=self.rmtree_err)
-
-    def rmtree_err(self, fn, path, exc):
-        """A stupid error handler that prints and raises.
-
-        Somehow, this fixes the problem it was meant to diagnose.
-
-        """
-        print("Couldn't %r on %r due to %s" % (fn, path, exc))
-        raise exc
+            # rmtree gives mysterious failures on Win7, so retry a few times.
+            tries = 3
+            while tries:
+                try:
+                    shutil.rmtree(cleandir)
+                except OSError:
+                    if tries == 1:
+                        raise
+                    else:
+                        tries -= 1
+                        continue
+                break
 
 
 def main():     # pragma: no cover