diff --git a/gbpclient/gbp/v2_0/purge.py b/gbpclient/gbp/v2_0/purge.py
index f364eea..3668d15 100644
--- a/gbpclient/gbp/v2_0/purge.py
+++ b/gbpclient/gbp/v2_0/purge.py
@@ -11,6 +11,7 @@
 #    under the License.
 #
 
+import errno
 import re
 import sys
 
@@ -73,12 +74,14 @@ class Purge(n_purge.Purge):
                     sys.stdout.write("\rPurging resources: %d%% complete." %
                                      percent_complete)
                     sys.stdout.flush()
-                except Exception:
+                except IOError as e:
                     # A broken pipe IOError exception might get thrown if
                     # invoked from our MD's keystone tenant delete handler
                     # code. We should just ignore that then continue to
                     # purge the rest of the resources.
-                    continue
+                    if e.errno == errno.EPIPE:
+                        continue
+
         return (deleted, failed, failures)
 
     def take_action(self, parsed_args):
diff --git a/tools/install_venv_common.py b/tools/install_venv_common.py
index e279159..51a912d 100644
--- a/tools/install_venv_common.py
+++ b/tools/install_venv_common.py
@@ -26,7 +26,7 @@ from __future__ import print_function
 
 import optparse
 import os
-import subprocess
+import subprocess  # nosec
 import sys
 
 
@@ -61,7 +61,7 @@ class InstallVenv(object):
         else:
             stdout = None
 
-        proc = subprocess.Popen(cmd, cwd=self.root, stdout=stdout)
+        proc = subprocess.Popen(cmd, cwd=self.root, stdout=stdout)  # nosec
         output = proc.communicate()[0]
         if check_exit_code and proc.returncode != 0:
             self.die('Command "%s" failed.\n%s', ' '.join(cmd), output)