cloud/openstack: convert filter to list for py3 compat

Signed-off-by: Kyr Shatskyy <kyrylo.shatskyy@suse.com>

diff --git a/teuthology/provision/cloud/openstack.py b/teuthology/provision/cloud/openstack.py
index 732b6bd64a17810705a6d5442a50c4caa978fef7..7ac87dcc6bf364826d11e2877c9066fa4db694a8 100644 (file)
--- a/teuthology/provision/cloud/openstack.py
+++ b/teuthology/provision/cloud/openstack.py
@@ -100,13 +100,13 @@ class OpenStackProvider(Provider):
                 exclude_sizes = [exclude_sizes]
             exclude_re = [re.compile(x) for x in exclude_sizes]
             sizes = retry(self.driver.list_sizes)
-            self._sizes = filter(
+            self._sizes = list(filter(
                 lambda s:
                     any(x.match(s.name) for x in allow_re)
                     and not
                     all(x.match(s.name) for x in exclude_re),
                 sizes
-            )
+            ))
         return self._sizes
 
     @property