From: parmentelat <thierry.parmentelat@inria.fr>
Date: Wed, 23 May 2018 21:40:12 +0000 (+0200)
Subject: more pep8-friendly
X-Git-Tag: sfa-4.0-0~28
X-Git-Url: http://git.onelab.eu/?p=sfa.git;a=commitdiff_plain;h=7eb34251548a271ae964b2f7d7e0fad7a1e41f5a

more pep8-friendly
---

diff --git a/sfa/client/manifolduploader.py b/sfa/client/manifolduploader.py
index e377c8d7..69561e0d 100755
--- a/sfa/client/manifolduploader.py
+++ b/sfa/client/manifolduploader.py
@@ -169,13 +169,17 @@ def main():
                         help="the filenames to upload")
     parser.add_argument('-u', '--url', dest='url', action='store', default=None,
                         help='the URL of the manifold API')
-    parser.add_argument('-p', '--platform', dest='platform', action='store', default=None,
+    parser.add_argument('-p', '--platform', dest='platform',
+                        action='store', default=None,
                         help='the manifold platform name')
-    parser.add_argument('-U', '--user', dest='username', action='store', default=None,
+    parser.add_argument('-U', '--user', dest='username',
+                        action='store', default=None,
                         help='the manifold username')
-    parser.add_argument('-P', '--password', dest='password', action='store', default=None,
+    parser.add_argument('-P', '--password', dest='password',
+                        action='store', default=None,
                         help='the manifold password')
-    parser.add_argument('-v', '--verbose', dest='verbose', action='count', default=0,
+    parser.add_argument('-v', '--verbose', dest='verbose',
+                        action='count', default=0,
                         help='more and more verbose')
     args = parser.parse_args()
 
diff --git a/sfa/client/sfaadmin.py b/sfa/client/sfaadmin.py
index a6d5a07c..d67734ed 100755
--- a/sfa/client/sfaadmin.py
+++ b/sfa/client/sfaadmin.py
@@ -1,10 +1,13 @@
 #!/usr/bin/python
+
+# pylint: disable=c0111, c0103, w0402, w0622
+
 from __future__ import print_function
 
 import os
 import sys
 import copy
-from pprint import pformat, PrettyPrinter
+from pprint import PrettyPrinter
 from optparse import OptionParser
 
 from sfa.generic import Generic
@@ -15,7 +18,9 @@ from sfa.trust.hierarchy import Hierarchy
 from sfa.trust.gid import GID
 from sfa.trust.certificate import convert_public_key
 
-from sfa.client.common import optparse_listvalue_callback, optparse_dictvalue_callback, terminal_render, filter_records
+from sfa.client.common import (optparse_listvalue_callback,
+                               optparse_dictvalue_callback,
+                               terminal_render, filter_records)
 from sfa.client.candidates import Candidates
 from sfa.client.sfi import save_records_to_file
 
@@ -23,7 +28,7 @@ pprinter = PrettyPrinter(indent=4)
 
 try:
     help_basedir = Hierarchy().basedir
-except:
+except Exception:
     help_basedir = '*unable to locate Hierarchy().basedir'
 
 
@@ -54,14 +59,19 @@ class RegistryCommands(Commands):
         version = self.api.manager.GetVersion(self.api, {})
         pprinter.pprint(version)
 
-        
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='authority to list (hrn/urn - mandatory)')
-    @add_options('-t', '--type', dest='type', metavar='<type>', help='object type', default='all')
-    @add_options('-r', '--recursive', dest='recursive', metavar='<recursive>', help='list all child records',
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='authority to list (hrn/urn - mandatory)')
+    @add_options('-t', '--type', dest='type', metavar='<type>',
+                 help='object type', default='all')
+    @add_options('-r', '--recursive', dest='recursive', metavar='<recursive>',
+                 help='list all child records',
+                 action='store_true', default=False)
+    @add_options('-v', '--verbose', dest='verbose',
                  action='store_true', default=False)
-    @add_options('-v', '--verbose', dest='verbose', action='store_true', default=False)
     def list(self, xrn, type=None, recursive=False, verbose=False):
-        """List names registered at a given authority - possibly filtered by type"""
+        """
+        List names registered at a given authority, possibly filtered by type
+        """
         xrn = Xrn(xrn, type)
         options_dict = {'recursive': recursive}
         records = self.api.manager.List(
@@ -69,18 +79,22 @@ class RegistryCommands(Commands):
         list = filter_records(type, records)
         # terminal_render expects an options object
 
-        class Options:
-            pass
-        options = Options()
-        options.verbose = verbose
-        terminal_render(list, options)
+        class Options:                                  # pylint: disable=r0903
+            def __init__(self, verbose):
+                self.verbose = verbose
 
+        options = Options(verbose)
+        terminal_render(list, options)
 
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='object hrn/urn (mandatory)')
-    @add_options('-t', '--type', dest='type', metavar='<type>', help='object type', default=None)
-    @add_options('-o', '--outfile', dest='outfile', metavar='<outfile>', help='save record to file')
-    @add_options('-f', '--format', dest='format', metavar='<display>', type='choice',
-                 choices=('text', 'xml', 'simple'), help='display record in different formats')
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='object hrn/urn (mandatory)')
+    @add_options('-t', '--type', dest='type', metavar='<type>',
+                 help='object type', default=None)
+    @add_options('-o', '--outfile', dest='outfile', metavar='<outfile>',
+                 help='save record to file')
+    @add_options('-f', '--format', dest='format', metavar='<display>',
+                 type='choice', choices=('text', 'xml', 'simple'),
+                 help='display record in different formats')
     def show(self, xrn, type=None, format=None, outfile=None):
         """Display details for a registered object"""
         records = self.api.manager.Resolve(self.api, xrn, type, details=True)
@@ -90,7 +104,8 @@ class RegistryCommands(Commands):
         if outfile:
             save_records_to_file(outfile, records)
 
-    def _record_dict(self, xrn, type, email, key,
+    @staticmethod
+    def _record_dict(xrn, type, email, key,
                      slices, researchers, pis,
                      url, description, extras):
         record_dict = {}
@@ -124,11 +139,16 @@ class RegistryCommands(Commands):
             record_dict.update(extras)
         return record_dict
 
-
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='object hrn/urn', default=None)
-    @add_options('-t', '--type', dest='type', metavar='<type>', help='object type (mandatory)')
-    @add_options('-a', '--all', dest='all', metavar='<all>', action='store_true', default=False, help='check all users GID')
-    @add_options('-v', '--verbose', dest='verbose', metavar='<verbose>', action='store_true', default=False, help='verbose mode: display user\'s hrn ')
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='object hrn/urn', default=None)
+    @add_options('-t', '--type', dest='type', metavar='<type>',
+                 help='object type (mandatory)')
+    @add_options('-a', '--all', dest='all', metavar='<all>',
+                 action='store_true', default=False,
+                 help='check all users GID')
+    @add_options('-v', '--verbose', dest='verbose', metavar='<verbose>',
+                 action='store_true', default=False,
+                 help='verbose mode: display user\'s hrn ')
     def check_gid(self, xrn=None, type=None, all=None, verbose=None):
         """Check the correspondance between the GID and the PubKey"""
 
@@ -160,7 +180,7 @@ class RegistryCommands(Commands):
                 db_pubkey_str = record.reg_keys[0].key
                 try:
                     db_pubkey_obj = convert_public_key(db_pubkey_str)
-                except:
+                except Exception:
                     ERROR.append(record.hrn)
                     continue
             else:
@@ -183,81 +203,111 @@ class RegistryCommands(Commands):
             print("Users NOT having a PubKey: %s\n\
 Users having a non RSA PubKey: %s\n\
 Users having a GID/PubKey correpondence OK: %s\n\
-Users having a GID/PubKey correpondence Not OK: %s\n" % (len(NOKEY), len(ERROR), len(OK), len(NOK)))
+Users having a GID/PubKey correpondence Not OK: %s\n"
+                  % (len(NOKEY), len(ERROR), len(OK), len(NOK)))
         else:
             print("Users NOT having a PubKey: %s and are: \n%s\n\n\
 Users having a non RSA PubKey: %s and are: \n%s\n\n\
 Users having a GID/PubKey correpondence OK: %s and are: \n%s\n\n\
-Users having a GID/PubKey correpondence NOT OK: %s and are: \n%s\n\n" % (len(NOKEY), NOKEY, len(ERROR), ERROR, len(OK), OK, len(NOK), NOK))
+Users having a GID/PubKey correpondence NOT OK: %s and are: \n%s\n\n"
+                  % (len(NOKEY), NOKEY, len(ERROR), ERROR,
+                     len(OK), OK, len(NOK), NOK))
 
 
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='object hrn/urn (mandatory)')
-    @add_options('-t', '--type', dest='type', metavar='<type>', help='object type', default=None)
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='object hrn/urn (mandatory)')
+    @add_options('-t', '--type', dest='type', metavar='<type>',
+                 help='object type', default=None)
     @add_options('-e', '--email', dest='email', default="",
                  help="email (mandatory for users)")
     @add_options('-u', '--url', dest='url', metavar='<url>', default=None,
                  help="URL, useful for slices")
-    @add_options('-d', '--description', dest='description', metavar='<description>',
+    @add_options('-d', '--description', dest='description',
+                 metavar='<description>',
                  help='Description, useful for slices', default=None)
-    @add_options('-k', '--key', dest='key', metavar='<key>', help='public key string or file',
+    @add_options('-k', '--key', dest='key', metavar='<key>',
+                 help='public key string or file',
                  default=None)
-    @add_options('-s', '--slices', dest='slices', metavar='<slices>', help='Set/replace slice xrns',
-                 default='', type="str", action='callback', callback=optparse_listvalue_callback)
-    @add_options('-r', '--researchers', dest='researchers', metavar='<researchers>', help='Set/replace slice researchers',
-                 default='', type="str", action='callback', callback=optparse_listvalue_callback)
+    @add_options('-s', '--slices', dest='slices', metavar='<slices>',
+                 help='Set/replace slice xrns',
+                 default='', type="str", action='callback',
+                 callback=optparse_listvalue_callback)
+    @add_options('-r', '--researchers', dest='researchers',
+                 metavar='<researchers>', help='Set/replace slice researchers',
+                 default='', type="str", action='callback',
+                 callback=optparse_listvalue_callback)
     @add_options('-p', '--pis', dest='pis', metavar='<PIs>',
                  help='Set/replace Principal Investigators/Project Managers',
-                 default='', type="str", action='callback', callback=optparse_listvalue_callback)
-    @add_options('-X', '--extra', dest='extras', default={}, type='str', metavar="<EXTRA_ASSIGNS>",
-                 action="callback", callback=optparse_dictvalue_callback, nargs=1,
-                 help="set extra/testbed-dependent flags, e.g. --extra enabled=true")
+                 default='', type="str", action='callback',
+                 callback=optparse_listvalue_callback)
+    @add_options('-X', '--extra', dest='extras',
+                 default={}, type='str', metavar="<EXTRA_ASSIGNS>",
+                 action="callback", callback=optparse_dictvalue_callback,
+                 nargs=1,
+                 help="set extra/testbed-dependent flags,"
+                      " e.g. --extra enabled=true")
     def register(self, xrn, type=None, email='', key=None,
                  slices='', pis='', researchers='',
                  url=None, description=None, extras={}):
         """Create a new Registry record"""
-        record_dict = self._record_dict(xrn=xrn, type=type, email=email, key=key,
-                                        slices=slices, researchers=researchers, pis=pis,
-                                        url=url, description=description, extras=extras)
+        record_dict = self._record_dict(
+            xrn=xrn, type=type, email=email, key=key,
+            slices=slices, researchers=researchers, pis=pis,
+            url=url, description=description, extras=extras)
         self.api.manager.Register(self.api, record_dict)
 
-        
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='object hrn/urn (mandatory)')
-    @add_options('-t', '--type', dest='type', metavar='<type>', help='object type', default=None)
-    @add_options('-u', '--url', dest='url', metavar='<url>', help='URL', default=None)
-    @add_options('-d', '--description', dest='description', metavar='<description>',
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='object hrn/urn (mandatory)')
+    @add_options('-t', '--type', dest='type', metavar='<type>',
+                 help='object type', default=None)
+    @add_options('-u', '--url', dest='url', metavar='<url>',
+                 help='URL', default=None)
+    @add_options('-d', '--description', dest='description',
+                 metavar='<description>',
                  help='Description', default=None)
-    @add_options('-k', '--key', dest='key', metavar='<key>', help='public key string or file',
+    @add_options('-k', '--key', dest='key', metavar='<key>',
+                 help='public key string or file',
                  default=None)
-    @add_options('-s', '--slices', dest='slices', metavar='<slices>', help='Set/replace slice xrns',
-                 default='', type="str", action='callback', callback=optparse_listvalue_callback)
-    @add_options('-r', '--researchers', dest='researchers', metavar='<researchers>', help='Set/replace slice researchers',
-                 default='', type="str", action='callback', callback=optparse_listvalue_callback)
+    @add_options('-s', '--slices', dest='slices', metavar='<slices>',
+                 help='Set/replace slice xrns',
+                 default='', type="str", action='callback',
+                 callback=optparse_listvalue_callback)
+    @add_options('-r', '--researchers', dest='researchers',
+                 metavar='<researchers>', help='Set/replace slice researchers',
+                 default='', type="str", action='callback',
+                 callback=optparse_listvalue_callback)
     @add_options('-p', '--pis', dest='pis', metavar='<PIs>',
                  help='Set/replace Principal Investigators/Project Managers',
-                 default='', type="str", action='callback', callback=optparse_listvalue_callback)
-    @add_options('-X', '--extra', dest='extras', default={}, type='str', metavar="<EXTRA_ASSIGNS>",
-                 action="callback", callback=optparse_dictvalue_callback, nargs=1,
-                 help="set extra/testbed-dependent flags, e.g. --extra enabled=true")
+                 default='', type="str", action='callback',
+                 callback=optparse_listvalue_callback)
+    @add_options('-X', '--extra', dest='extras', default={}, type='str',
+                 metavar="<EXTRA_ASSIGNS>", nargs=1,
+                 action="callback", callback=optparse_dictvalue_callback,
+                 help="set extra/testbed-dependent flags,"
+                      " e.g. --extra enabled=true")
     def update(self, xrn, type=None, email='', key=None,
                slices='', pis='', researchers='',
                url=None, description=None, extras={}):
         """Update an existing Registry record"""
-        record_dict = self._record_dict(xrn=xrn, type=type, email=email, key=key,
-                                        slices=slices, researchers=researchers, pis=pis,
-                                        url=url, description=description, extras=extras)
+        record_dict = self._record_dict(
+            xrn=xrn, type=type, email=email, key=key,
+            slices=slices, researchers=researchers, pis=pis,
+            url=url, description=description, extras=extras)
         self.api.manager.Update(self.api, record_dict)
 
-
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='object hrn/urn (mandatory)')
-    @add_options('-t', '--type', dest='type', metavar='<type>', help='object type', default=None)
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='object hrn/urn (mandatory)')
+    @add_options('-t', '--type', dest='type', metavar='<type>',
+                 help='object type', default=None)
     def remove(self, xrn, type=None):
         """Remove given object from the registry"""
         xrn = Xrn(xrn, type)
         self.api.manager.Remove(self.api, xrn)
 
-
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='object hrn/urn (mandatory)')
-    @add_options('-t', '--type', dest='type', metavar='<type>', help='object type', default=None)
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='object hrn/urn (mandatory)')
+    @add_options('-t', '--type', dest='type', metavar='<type>',
+                 help='object type', default=None)
     def credential(self, xrn, type=None):
         """Invoke GetCredential"""
         cred = self.api.manager.GetCredential(
@@ -279,14 +329,23 @@ Users having a GID/PubKey correpondence NOT OK: %s and are: \n%s\n\n" % (len(NOK
         dbschema.init_or_upgrade()
 
 
-    @add_options('-a', '--all', dest='all', metavar='<all>', action='store_true', default=False,
-                 help='Remove all registry records and all files in %s area' % help_basedir)
-    @add_options('-c', '--certs', dest='certs', metavar='<certs>', action='store_true', default=False,
-                 help='Remove all cached certs/gids found in %s' % help_basedir)
-    @add_options('-0', '--no-reinit', dest='reinit', metavar='<reinit>', action='store_false', default=True,
-                 help='Prevents new DB schema from being installed after cleanup')
+    @add_options('-a', '--all', dest='all', metavar='<all>',
+                 action='store_true', default=False,
+                 help='Remove all registry records and all files in %s area'
+                 % help_basedir)
+    @add_options('-c', '--certs', dest='certs',
+                 metavar='<certs>', action='store_true', default=False,
+                 help='Remove all cached certs/gids found in %s'
+                 % help_basedir)
+    @add_options('-0', '--no-reinit', dest='reinit', metavar='<reinit>',
+                 action='store_false', default=True,
+                 help="Prevents new DB schema"
+                 " from being installed after cleanup")
     def nuke(self, all=False, certs=False, reinit=True):
-        """Cleanup local registry DB, plus various additional filesystem cleanups optionally"""
+        """
+        Cleanup local registry DB, plus various additional
+        filesystem cleanups optionally
+        """
         from sfa.storage.dbschema import DBSchema
         from sfa.util.sfalogging import _SfaLogger
         logger = _SfaLogger(
@@ -296,7 +355,8 @@ Users having a GID/PubKey correpondence NOT OK: %s and are: \n%s\n\n" % (len(NOK
         dbschema = DBSchema()
         dbschema.nuke()
 
-        # for convenience we re-create the schema here, so there's no need for an explicit
+        # for convenience we re-create the schema here,
+        # so there's no need for an explicit
         # service sfa restart
         # however in some (upgrade) scenarios this might be wrong
         if reinit:
@@ -333,9 +393,12 @@ class CertCommands(Commands):
     def import_gid(self, xrn):
         pass
 
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='object hrn/urn (mandatory)')
-    @add_options('-t', '--type', dest='type', metavar='<type>', help='object type', default=None)
-    @add_options('-o', '--outfile', dest='outfile', metavar='<outfile>', help='output file', default=None)
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='object hrn/urn (mandatory)')
+    @add_options('-t', '--type', dest='type', metavar='<type>',
+                 help='object type', default=None)
+    @add_options('-o', '--outfile', dest='outfile', metavar='<outfile>',
+                 help='output file', default=None)
     def export(self, xrn, type=None, outfile=None):
         """Fetch an object's GID from the Registry"""
         from sfa.storage.model import RegRecord
@@ -352,7 +415,7 @@ class CertCommands(Commands):
             try:
                 auth_info = hierarchy.get_auth_info(hrn)
                 gid = auth_info.gid_object
-            except:
+            except Exception:
                 print("Record: %s not found" % hrn)
                 sys.exit(1)
         # save to file
@@ -360,7 +423,8 @@ class CertCommands(Commands):
             outfile = os.path.abspath('./%s.gid' % gid.get_hrn())
         gid.save_to_file(outfile, save_parents=True)
 
-    @add_options('-g', '--gidfile', dest='gid', metavar='<gid>', help='path of gid file to display (mandatory)')
+    @add_options('-g', '--gidfile', dest='gid', metavar='<gid>',
+                 help='path of gid file to display (mandatory)')
     def display(self, gidfile):
         """Print contents of a GID file"""
         gid_path = os.path.abspath(gidfile)
@@ -381,15 +445,20 @@ class AggregateCommands(Commands):
         version = self.api.manager.GetVersion(self.api, {})
         pprinter.pprint(version)
 
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='object hrn/urn (mandatory)')
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='object hrn/urn (mandatory)')
     def status(self, xrn):
-        """Retrieve the status of the slivers belonging to the named slice (Status)"""
+        """
+        Retrieve the status of the slivers
+        belonging to the named slice (Status)
+        """
         urns = [Xrn(xrn, 'slice').get_urn()]
         status = self.api.manager.Status(self.api, urns, [], {})
         pprinter.pprint(status)
 
-    @add_options('-r', '--rspec-version', dest='rspec_version', metavar='<rspec_version>',
-                 default='GENI', help='version/format of the resulting rspec response')
+    @add_options('-r', '--rspec-version', dest='rspec_version',
+                 metavar='<rspec_version>', default='GENI',
+                 help='version/format of the resulting rspec response')
     def resources(self, rspec_version='GENI'):
         """Display the available resources at an aggregate"""
         options = {'geni_rspec_version': rspec_version}
@@ -397,8 +466,10 @@ class AggregateCommands(Commands):
         resources = self.api.manager.ListResources(self.api, [], options)
         print(resources)
 
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='slice hrn/urn (mandatory)')
-    @add_options('-r', '--rspec', dest='rspec', metavar='<rspec>', help='rspec file (mandatory)')
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='slice hrn/urn (mandatory)')
+    @add_options('-r', '--rspec', dest='rspec', metavar='<rspec>',
+                 help='rspec file (mandatory)')
     def allocate(self, xrn, rspec):
         """Allocate slivers"""
         xrn = Xrn(xrn, 'slice')
@@ -409,7 +480,8 @@ class AggregateCommands(Commands):
             self.api, slice_urn, [], rspec_string, options)
         print(manifest)
 
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='slice hrn/urn (mandatory)')
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='slice hrn/urn (mandatory)')
     def provision(self, xrn):
         """Provision slivers"""
         xrn = Xrn(xrn, 'slice')
@@ -419,7 +491,8 @@ class AggregateCommands(Commands):
             self.api, [slice_urn], [], options)
         print(manifest)
 
-    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>', help='slice hrn/urn (mandatory)')
+    @add_options('-x', '--xrn', dest='xrn', metavar='<xrn>',
+                 help='slice hrn/urn (mandatory)')
     def delete(self, xrn):
         """Delete slivers"""
         self.api.manager.Delete(self.api, [xrn], [], {})
@@ -461,7 +534,6 @@ class SfaAdmin:
                 if name.startswith('_'):
                     continue
                 margin = 15
-                format = "%%-%ds" % margin
                 print("%-15s" % name, end=' ')
                 doc = getattr(method, '__doc__', None)
                 if not doc:
@@ -526,8 +598,6 @@ class SfaAdmin:
             sys.exit(0)
         except TypeError:
             print("Possible wrong number of arguments supplied")
-            #import traceback
-            # traceback.print_exc()
             print(command.__doc__)
             parser.print_help()
             sys.exit(1)
diff --git a/sfa/client/sfi.py b/sfa/client/sfi.py
index b94dcf62..f03634ed 100644
--- a/sfa/client/sfi.py
+++ b/sfa/client/sfi.py
@@ -572,7 +572,7 @@ class Sfi:
             parser.add_option("-p", "--pi", dest='delegate_pi', default=None, action='store_true',
                               help="delegate your PI credentials, so s.t. like -A your_hrn^")
             parser.add_option("-A", "--to-authority", dest='delegate_to_authority', action='store_true', default=False,
-                              help="""by default the mandatory argument is expected to be a user, 
+                              help="""by default the mandatory argument is expected to be a user,
 use this if you mean an authority instead""")
 
         if canonical in ("myslice"):
@@ -903,7 +903,7 @@ use this if you mean an authority instead""")
     # resurrect this temporarily so we can support V1 aggregates for a while
     def server_supports_options_arg(self, server):
         """
-        Returns true if server support the optional call_id arg, false otherwise. 
+        Returns true if server support the optional call_id arg, false otherwise.
         """
         server_version = self.get_cached_server_version(server)
         result = False
@@ -1127,8 +1127,8 @@ use this if you mean an authority instead""")
     @declare_command("[xml-filename]", "", ['add'])
     def register(self, options, args):
         """
-        create new record in registry (Register) 
-        from command line options (recommended) 
+        create new record in registry (Register)
+        from command line options (recommended)
         old-school method involving an xml file still supported
         """
         if len(args) > 1:
@@ -1170,8 +1170,8 @@ use this if you mean an authority instead""")
     @declare_command("[xml-filename]", "")
     def update(self, options, args):
         """
-        update record into registry (Update) 
-        from command line options (recommended) 
+        update record into registry (Update)
+        from command line options (recommended)
         old-school method involving an xml file still supported
         """
         if len(args) > 1:
@@ -1302,8 +1302,8 @@ use this if you mean an authority instead""")
     @declare_command("slice_hrn", "")
     def describe(self, options, args):
         """
-        shows currently allocated/provisioned resources 
-        of the named slice or set of slivers (Describe) 
+        shows currently allocated/provisioned resources
+        of the named slice or set of slivers (Describe)
         """
         if len(args) != 1:
             self.print_help()
@@ -1791,7 +1791,7 @@ $ sfi m -b http://mymanifold.foo.com:7080/
     * compute all the slices that you currently have credentials on
     * refresh all your credentials (you as a user and pi, your slices)
     * upload them to the manifold backend server
-    for last phase, sfi_config is read to look for the [myslice] section, 
+    for last phase, sfi_config is read to look for the [myslice] section,
     and namely the 'backend', 'delegate' and 'user' settings
         """
 
diff --git a/sfa/generic/__init__.py b/sfa/generic/__init__.py
index a7a0741a..bd37cf49 100644
--- a/sfa/generic/__init__.py
+++ b/sfa/generic/__init__.py
@@ -35,7 +35,7 @@ class Generic:
         if flavour is None:
             flavour = config.SFA_GENERIC_FLAVOUR
         flavour = flavour.lower()
-        #mixed = flavour.capitalize()
+        # mixed = flavour.capitalize()
         module_path = "sfa.generic.%s" % flavour
         classname = "%s" % flavour
         logger.debug("Generic.the_flavour with flavour=%s" % flavour)
@@ -97,8 +97,9 @@ class Generic:
         try:
             module_or_class = getattr(self, classname)()
             logger.debug("%s : %s" % (message, module_or_class))
-            # this gets passed to ManagerWrapper that will call the class constructor
-            # if it's a class, or use the module as is if it's a module
+            # this gets passed to ManagerWrapper that will
+            # call the class constructor if it's a class,
+            # or use the module as is if it's a module
             # so bottom line is, don't try the constructor here
             return module_or_class
         except:
diff --git a/sfa/importer/__init__.py b/sfa/importer/__init__.py
index 65e57ec0..84513e28 100644
--- a/sfa/importer/__init__.py
+++ b/sfa/importer/__init__.py
@@ -1,6 +1,7 @@
 #!/usr/bin/python
 
-import sys
+# pylint: disable=c0111, w1201, w0622
+
 from datetime import datetime
 
 from sfa.util.xrn import get_authority, hrn_to_urn
@@ -8,13 +9,12 @@ from sfa.generic import Generic
 from sfa.util.config import Config
 from sfa.util.sfalogging import _SfaLogger
 from sfa.trust.hierarchy import Hierarchy
-#from sfa.trust.trustedroots import TrustedRoots
+# from sfa.trust.trustedroots import TrustedRoots
 from sfa.trust.gid import create_uuid
 # using global alchemy.session() here is fine
 # as importer is on standalone one-shot process
 from sfa.storage.alchemy import global_dbsession
 from sfa.storage.model import RegRecord, RegAuthority, RegUser
-from sfa.trust.certificate import convert_public_key, Keypair
 
 
 class Importer:
@@ -37,12 +37,15 @@ class Importer:
 #        self.TrustedRoots = TrustedRoots(self.config.get_trustedroots_dir())
 
     # check before creating a RegRecord entry as we run this over and over
-    def record_exists(self, type, hrn):
-        return global_dbsession.query(RegRecord).filter_by(hrn=hrn, type=type).count() != 0
+    @staticmethod
+    def record_exists(type, hrn):
+        return (global_dbsession.query(RegRecord)
+                .filter_by(hrn=hrn, type=type).count() != 0)
 
     def create_top_level_auth_records(self, hrn):
         """
-        Create top level db records (includes root and sub authorities (local/remote)
+        Create top level db records
+        includes root and sub authorities (local/remote)
         """
         # make sure parent exists
         parent_hrn = get_authority(hrn)
@@ -68,7 +71,7 @@ class Importer:
         """
         Create a user record for the Slicemanager service.
         """
-        hrn = self.interface_hrn + '.slicemanager'
+        hrn = self.interface_hrn + '.slicemanager'      # pylint: disable=e1101
         urn = hrn_to_urn(hrn, 'user')
         if not self.auth_hierarchy.auth_exists(urn):
             self.logger.info("SfaImporter: creating Slice Manager user")
@@ -126,8 +129,9 @@ class Importer:
         if importer_class:
             begin_time = datetime.utcnow()
             self.logger.info(30 * '=')
-            self.logger.info("Starting import on %s, using class %s from flavour %s" %
-                             (begin_time, importer_class.__name__, generic.flavour))
+            self.logger.info(
+                "Starting import on %s, using class %s from flavour %s" %
+                (begin_time, importer_class.__name__, generic.flavour))
             testbed_importer = importer_class(auth_hierarchy, self.logger)
             if testbed_importer:
                 testbed_importer.add_options(options)
diff --git a/sfa/importer/dummyimporter.py b/sfa/importer/dummyimporter.py
index 4594ad6e..6a5bb67c 100644
--- a/sfa/importer/dummyimporter.py
+++ b/sfa/importer/dummyimporter.py
@@ -245,13 +245,13 @@ class DummyImporter:
                             except:
                                 continue
                         if not pkey:
-                            self.logger.warn(
+                            self.logger.warning(
                                 'DummyImporter: unable to convert public key for %s' % user_hrn)
                             pkey = Keypair(create=True)
                     else:
                         # the user has no keys. Creating a random keypair for
                         # the user's gid
-                        self.logger.warn(
+                        self.logger.warning(
                             "DummyImporter: user %s does not have a NITOS public key" % user_hrn)
                         pkey = Keypair(create=True)
                     return (pubkey, pkey)
diff --git a/sfa/importer/openstackimporter.py b/sfa/importer/openstackimporter.py
index eb531738..7ced6203 100644
--- a/sfa/importer/openstackimporter.py
+++ b/sfa/importer/openstackimporter.py
@@ -79,7 +79,7 @@ class OpenstackImporter:
                             'unable to convert public key for %s' % hrn)
                         pkey = Keypair(create=True)
                 else:
-                    self.logger.warn(
+                    self.logger.warning(
                         "OpenstackImporter: person %s does not have a PL public key" % hrn)
                     pkey = Keypair(create=True)
                 user_gid = self.auth_hierarchy.create_gid(
diff --git a/sfa/importer/plimporter.py b/sfa/importer/plimporter.py
index 3bbd8c30..f612f47e 100644
--- a/sfa/importer/plimporter.py
+++ b/sfa/importer/plimporter.py
@@ -307,8 +307,9 @@ class PlImporter:
                 elif person_id in disabled_person_ids:
                     pass
                 else:
-                    self.logger.warning("PlImporter: cannot locate person_id {} in site {} - ignored"
-                                        .format(person_id, site_hrn))
+                    self.logger.warning(
+                        "PlImporter: cannot locate person_id {} in site {} - ignored"
+                        .format(person_id, site_hrn))
                 # make sure to NOT run this if anything is wrong
                 if not proceed:
                     continue
@@ -316,7 +317,7 @@ class PlImporter:
                 #person_hrn = email_to_hrn(site_hrn, person['email'])
                 person_hrn = person['hrn']
                 if person_hrn is None:
-                    self.logger.warn(
+                    self.logger.warning(
                         "Person {} has no hrn - skipped".format(person['email']))
                     continue
                 # xxx suspicious again
@@ -336,14 +337,16 @@ class PlImporter:
                         try:
                             pkey = convert_public_key(pubkey['key'])
                         except:
-                            self.logger.warn('PlImporter: unable to convert public key for {}'
-                                             .format(person_hrn))
+                            self.logger.warning(
+                                'PlImporter: unable to convert public key for {}'
+                                .format(person_hrn))
                             pkey = Keypair(create=True)
                     else:
                         # the user has no keys. Creating a random keypair for
                         # the user's gid
-                        self.logger.warn("PlImporter: person {} does not have a PL public key"
-                                         .format(person_hrn))
+                        self.logger.warning(
+                            "PlImporter: person {} does not have a PL public key"
+                            .format(person_hrn))
                         pkey = Keypair(create=True)
                     return (pubkey, pkey)
 
diff --git a/sfa/planetlab/plslices.py b/sfa/planetlab/plslices.py
index 635001ce..e868acd1 100644
--- a/sfa/planetlab/plslices.py
+++ b/sfa/planetlab/plslices.py
@@ -7,7 +7,8 @@ from sfa.util.xrn import Xrn, get_leaf, get_authority, urn_to_hrn
 from sfa.rspecs.rspec import RSpec
 from sfa.planetlab.vlink import VLink
 from sfa.planetlab.topology import Topology
-from sfa.planetlab.plxrn import PlXrn, hrn_to_pl_slicename, xrn_to_hostname, top_auth, hash_loginbase
+from sfa.planetlab.plxrn import (PlXrn, hrn_to_pl_slicename, xrn_to_hostname,
+                                 top_auth, hash_loginbase)
 from sfa.storage.model import SliverAllocation
 
 MAXINT = 2L**31 - 1
@@ -41,8 +42,9 @@ class PlSlices:
         person_ids = list(person_ids)
         all_slice_tag_ids = list(all_slice_tag_ids)
         # Get user information
-        all_persons_list = self.driver.shell.GetPersons({'person_id': person_ids, 'enabled': True},
-                                                        ['person_id', 'enabled', 'key_ids'])
+        all_persons_list = self.driver.shell.GetPersons(
+            {'person_id': person_ids, 'enabled': True},
+            ['person_id', 'enabled', 'key_ids'])
         all_persons = {}
         for person in all_persons_list:
             all_persons[person['person_id']] = person
@@ -90,13 +92,17 @@ class PlSlices:
             sliver_attributes = []
 
             if node is not None:
-                for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags):
+                for sliver_attribute in filter(
+                        lambda a: a['node_id'] == node['node_id'],
+                        slice_tags):
                     sliver_attributes.append(sliver_attribute['tagname'])
                     attributes.append({'tagname': sliver_attribute['tagname'],
                                        'value': sliver_attribute['value']})
 
             # set nodegroup slice attributes
-            for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags):
+            for slice_tag in filter(
+                    lambda a: a['nodegroup_id'] in node['nodegroup_ids'],
+                    slice_tags):
                 # Do not set any nodegroup slice attributes for
                 # which there is at least one sliver attribute
                 # already set.
@@ -104,7 +110,9 @@ class PlSlices:
                     attributes.append({'tagname': slice_tag['tagname'],
                                        'value': slice_tag['value']})
 
-            for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags):
+            for slice_tag in filter(
+                    lambda a: a['node_id'] is None,
+                    slice_tags):
                 # Do not set any global slice attributes for
                 # which there is at least one sliver attribute
                 # already set.
@@ -144,8 +152,9 @@ class PlSlices:
 
     def verify_slice_leases(self, slice, rspec_requested_leases):
 
-        leases = self.driver.shell.GetLeases({'name': slice['name'], 'clip': int(time.time())},
-                                             ['lease_id', 'name', 'hostname', 't_from', 't_until'])
+        leases = self.driver.shell.GetLeases(
+            {'name': slice['name'], 'clip': int(time.time())},
+            ['lease_id', 'name', 'hostname', 't_from', 't_until'])
         grain = self.driver.shell.GetLeaseGranularity()
 
         requested_leases = []
@@ -165,7 +174,8 @@ class PlSlices:
 
             if slice_name != slice['name']:
                 continue
-            elif Xrn(lease['component_id']).get_authority_urn().split(':')[0] != self.driver.hrn:
+            elif (Xrn(lease['component_id']).get_authority_urn().split(':')[0]
+                  != self.driver.hrn):
                 continue
 
             hostname = xrn_to_hostname(lease['component_id'])
@@ -180,8 +190,9 @@ class PlSlices:
         # prepare actual slice leases by lease_id
         leases_by_id = {}
         for lease in leases:
-            leases_by_id[lease['lease_id']] = {'name': lease['name'], 'hostname': lease['hostname'],
-                                               't_from': lease['t_from'], 't_until': lease['t_until']}
+            leases_by_id[lease['lease_id']] = {
+                'name': lease['name'], 'hostname': lease['hostname'],
+                't_from': lease['t_from'], 't_until': lease['t_until']}
 
         added_leases = []
         kept_leases_id = []
@@ -197,10 +208,11 @@ class PlSlices:
         try:
             self.driver.shell.DeleteLeases(deleted_leases_id)
             for lease in added_leases:
-                self.driver.shell.AddLeases(lease['hostname'], slice['name'], lease[
-                                            't_from'], lease['t_until'])
+                self.driver.shell.AddLeases(
+                    lease['hostname'], slice['name'],
+                    lease['t_from'], lease['t_until'])
 
-        except:
+        except Exception:
             logger.log_exc('Failed to add/remove slice leases')
 
         return leases
@@ -235,7 +247,7 @@ class PlSlices:
             self.driver.shell.DeleteSliceFromNodes(
                 slice['name'], deleted_nodes)
 
-        except:
+        except Exception:
             logger.log_exc('Failed to add/remove slice from nodes')
 
         slices = self.driver.shell.GetSlices(slice['name'], ['node_ids'])
@@ -329,7 +341,8 @@ class PlSlices:
         self.verify_slice_tags(slice, slice_tags, {
                                'pltags': 'append'}, admin=True)
 
-    def verify_site(self, slice_xrn, slice_record=None, sfa_peer=None, options=None):
+    def verify_site(self, slice_xrn,
+                    slice_record=None, sfa_peer=None, options=None):
         if slice_record is None:
             slice_record = {}
         if options is None:
@@ -343,8 +356,9 @@ class PlSlices:
             login_base = hash_loginbase(site_hrn)
 
         # filter sites by hrn
-        sites = self.driver.shell.GetSites({'peer_id': None, 'hrn': site_hrn},
-                                           ['site_id', 'name', 'abbreviated_name', 'login_base', 'hrn'])
+        sites = self.driver.shell.GetSites(
+            {'peer_id': None, 'hrn': site_hrn},
+            ['site_id', 'name', 'abbreviated_name', 'login_base', 'hrn'])
 
         # alredy exists
         if sites:
@@ -371,7 +385,8 @@ class PlSlices:
 
         return site
 
-    def verify_slice(self, slice_hrn, slice_record, sfa_peer, expiration, options=None):
+    def verify_slice(self, slice_hrn, slice_record,
+                     sfa_peer, expiration, options=None):
         if options is None:
             options = {}
         top_auth_hrn = top_auth(slice_hrn)
@@ -385,8 +400,9 @@ class PlSlices:
 
         expires = int(datetime_to_epoch(utcparse(expiration)))
         # Filter slices by HRN
-        slices = self.driver.shell.GetSlices({'peer_id': None, 'hrn': slice_hrn},
-                                             ['slice_id', 'name', 'hrn', 'expires'])
+        slices = self.driver.shell.GetSlices(
+            {'peer_id': None, 'hrn': slice_hrn},
+            ['slice_id', 'name', 'hrn', 'expires'])
 
         if slices:
             slice = slices[0]
@@ -469,7 +485,8 @@ class PlSlices:
 
         return person_id
 
-    def verify_persons(self, slice_hrn, slice_record, users, sfa_peer, options=None):
+    def verify_persons(self, slice_hrn, slice_record,
+                       users, sfa_peer, options=None):
         if options is None:
             options = {}
 
@@ -501,8 +518,9 @@ class PlSlices:
         site_id = site['site_id']
 
         # locate the slice object
-        slice = self.driver.shell.GetSlices({'peer_id': None, 'hrn': slice_hrn}, [
-                                            'slice_id', 'hrn', 'person_ids'])[0]
+        slice = self.driver.shell.GetSlices(
+            {'peer_id': None, 'hrn': slice_hrn},
+            ['slice_id', 'hrn', 'person_ids'])[0]
         slice_id = slice['slice_id']
         slice_person_ids = slice['person_ids']
 
@@ -538,10 +556,12 @@ class PlSlices:
         # and for this we need all the Person objects; we already have the target_existing ones
         # also we avoid issuing a call if possible
         target_created_persons = [] if not target_created_person_ids \
-            else self.driver.shell.GetPersons \
-            ({'peer_id': None, 'person_id': target_created_person_ids}, person_fields)
-        persons_by_person_id = {person['person_id']: person
-                                for person in target_existing_persons + target_created_persons}
+            else self.driver.shell.GetPersons(
+                {'peer_id': None, 'person_id': target_created_person_ids},
+                person_fields)
+        persons_by_person_id = {
+            person['person_id']: person
+            for person in target_existing_persons + target_created_persons}
 
         def user_by_person_id(person_id):
             person = persons_by_person_id[person_id]
@@ -560,7 +580,8 @@ class PlSlices:
 
         # return hrns of the newly added persons
 
-        return [persons_by_person_id[person_id]['hrn'] for person_id in add_person_ids]
+        return [persons_by_person_id[person_id]['hrn']
+                for person_id in add_person_ids]
 
     def verify_keys(self, persons_to_verify_keys, options=None):
         if options is None:
@@ -578,13 +599,14 @@ class PlSlices:
                 key = {'key': key_string, 'key_type': 'ssh'}
                 self.driver.shell.AddPersonKey(int(person_id), key)
 
-    def verify_slice_tags(self, slice, requested_slice_attributes, options=None, admin=False):
+    def verify_slice_tags(self, slice, requested_slice_attributes,
+                          options=None, admin=False):
         """
         This function deals with slice tags, and supports 3 modes described
         in the 'pltags' option that can be either
         (*) 'ignore' (default) - do nothing
         (*) 'append' - only add incoming tags, that do not match an existing tag
-        (*) 'sync' - tries to do the plain wholesale thing, 
+        (*) 'sync' - tries to do the plain wholesale thing,
             i.e. to leave the db in sync with incoming tags
         """
         if options is None:
@@ -634,8 +656,8 @@ class PlSlices:
                 # be removed
                 tag_found = False
                 for requested_attribute in requested_slice_attributes:
-                    if requested_attribute['name'] == slice_tag['tagname'] and \
-                       requested_attribute['value'] == slice_tag['value']:
+                    if (requested_attribute['name'] == slice_tag['tagname'] and
+                            requested_attribute['value'] == slice_tag['value']):
                         tag_found = True
                         break
             # remove tags only if not in append mode
@@ -648,8 +670,8 @@ class PlSlices:
             if requested_attribute['name'] in valid_tag_names:
                 tag_found = False
                 for existing_attribute in existing_slice_tags:
-                    if requested_attribute['name'] == existing_attribute['tagname'] and \
-                       requested_attribute['value'] == existing_attribute['value']:
+                    if (requested_attribute['name'] == existing_attribute['tagname'] and \
+                            requested_attribute['value'] == existing_attribute['value']):
                         tag_found = True
                         break
                 if not tag_found:
@@ -659,7 +681,8 @@ class PlSlices:
             name = tag_or_att[
                 'tagname'] if 'tagname' in tag_or_att else tag_or_att['name']
             return "SliceTag slice={}, tagname={} value={}, node_id={}"\
-                .format(slice['name'], tag_or_att['name'], tag_or_att['value'], tag_or_att.get('node_id'))
+                .format(slice['name'], tag_or_att['name'],
+                        tag_or_att['value'], tag_or_att.get('node_id'))
 
         # remove stale tags
         for tag in slice_tags_to_remove:
@@ -668,16 +691,17 @@ class PlSlices:
                     friendly_message(tag)))
                 self.driver.shell.DeleteSliceTag(tag['slice_tag_id'])
             except Exception as e:
-                logger.warn("Failed to remove slice tag {}\nCause:{}"
-                            .format(friendly_message(tag), e))
+                logger.warning("Failed to remove slice tag {}\nCause:{}"
+                               .format(friendly_message(tag), e))
 
         # add requested_tags
         for attribute in slice_attributes_to_add:
             try:
                 logger.info("Adding Slice Tag {}".format(
                     friendly_message(attribute)))
-                self.driver.shell.AddSliceTag(slice['name'], attribute['name'],
-                                              attribute['value'], attribute.get('node_id', None))
+                self.driver.shell.AddSliceTag(
+                    slice['name'], attribute['name'],
+                    attribute['value'], attribute.get('node_id', None))
             except Exception as e:
-                logger.warn("Failed to add slice tag {}\nCause:{}"
-                            .format(friendly_message(attribute), e))
+                logger.warning("Failed to add slice tag {}\nCause:{}"
+                               .format(friendly_message(attribute), e))
diff --git a/sfa/server/sfa-start.py b/sfa/server/sfa-start.py
index bcd00cd6..7ca1af56 100755
--- a/sfa/server/sfa-start.py
+++ b/sfa/server/sfa-start.py
@@ -66,14 +66,15 @@ def daemon():
     # when installed in standalone we might not have httpd installed
     if not os.path.isdir(logdir):
         os.mkdir('/var/log/httpd')
-    crashlog = os.open('%s/sfa_access_log' % logdir, os.O_RDWR | os.O_APPEND | os.O_CREAT, 0644)
+    crashlog = os.open('%s/sfa_access_log' % logdir,
+                       os.O_RDWR | os.O_APPEND | os.O_CREAT, 0644)
     os.dup2(crashlog, 1)
     os.dup2(crashlog, 2)
 
 
 def install_peer_certs(server_key_file, server_cert_file):
     """
-    Attempt to install missing trusted gids and db records for 
+    Attempt to install missing trusted gids and db records for
     our federated interfaces
     """
     # Attempt to get any missing peer gids
@@ -130,7 +131,7 @@ def install_peer_certs(server_key_file, server_cert_file):
                         message = "installed trusted cert for %s" % new_hrn
                     # log the message
                     api.logger.info(message)
-        except:
+        except Exception:
             message = "interface: %s\tunable to install trusted gid for %s" % \
                 (api.interface, new_hrn)
             api.logger.log_exc(message)
@@ -140,7 +141,7 @@ def install_peer_certs(server_key_file, server_cert_file):
 
 def update_cert_records(gids):
     """
-    Make sure there is a record in the registry for the specified gids. 
+    Make sure there is a record in the registry for the specified gids.
     Removes old records from the db.
     """
     # import db stuff here here so this module can be loaded by PlcComponentApi
@@ -167,11 +168,12 @@ def update_cert_records(gids):
         record = dbsession.query(RegRecord).filter_by(
             hrn=hrn, type=type, pointer=-1).first()
         if not record:
-            record = RegRecord(dict={'type': type,
-                                     'hrn': hrn,
-                                     'authority': get_authority(hrn),
-                                     'gid': gid.save_to_string(save_parents=True),
-                                     })
+            record = RegRecord(
+                dict={'type': type,
+                      'hrn': hrn,
+                      'authority': get_authority(hrn),
+                      'gid': gid.save_to_string(save_parents=True),
+                      })
             dbsession.add(record)
     dbsession.commit()
 
@@ -187,7 +189,8 @@ def main():
                       help="run aggregate manager", default=False)
     parser.add_option("-c", "--component", dest="cm", action="store_true",
                       help="run component server", default=False)
-    parser.add_option("-t", "--trusted-certs", dest="trusted_certs", action="store_true",
+    parser.add_option("-t", "--trusted-certs",
+                      dest="trusted_certs", action="store_true",
                       help="refresh trusted certs", default=False)
     parser.add_option("-d", "--daemon", dest="daemon", action="store_true",
                       help="Run as daemon.", default=False)
diff --git a/sfa/server/sfaapi.py b/sfa/server/sfaapi.py
index a2950762..231fdeb2 100644
--- a/sfa/server/sfaapi.py
+++ b/sfa/server/sfaapi.py
@@ -1,8 +1,10 @@
+# pylint: disable=c0111
+
 import os
 import os.path
 import datetime
 
-from sfa.util.faults import SfaFault, SfaAPIError, RecordNotFound
+from sfa.util.faults import SfaFault, RecordNotFound
 from sfa.util.genicode import GENICODE
 from sfa.util.config import Config
 from sfa.util.cache import Cache
@@ -20,19 +22,19 @@ from sfa.storage.alchemy import alchemy
 ####################
 
 
-class SfaApi (XmlrpcApi):
+class SfaApi(XmlrpcApi):
     """
     An SfaApi instance is a basic xmlrpc service
     augmented with the local cryptographic material and hrn
 
     It also has the notion of its own interface (a string describing
-    whether we run a registry, aggregate or slicemgr) and has 
-    the notion of neighbour sfa services as defined 
+    whether we run a registry, aggregate or slicemgr) and has
+    the notion of neighbour sfa services as defined
     in /etc/sfa/{aggregates,registries}.xml
 
     Finally it contains a cache instance
 
-    It gets augmented by the generic layer with 
+    It gets augmented by the generic layer with
     (*) an instance of manager (actually a manager module for now)
         beware that this is shared among all instances of api
     (*) an instance of a testbed driver
@@ -77,8 +79,8 @@ class SfaApi (XmlrpcApi):
     def server_proxy(self, interface, cred, timeout=30):
         """
         Returns a connection to the specified interface. Use the specified
-        credential to determine the caller and look for the caller's key/cert 
-        in the registry hierarchy cache. 
+        credential to determine the caller and look for the caller's key/cert
+        in the registry hierarchy cache.
         """
         from sfa.trust.hierarchy import Hierarchy
         if not isinstance(cred, Credential):
@@ -147,8 +149,8 @@ class SfaApi (XmlrpcApi):
         return delegated_cred
 
     def _getCredential(self):
-        """ 
-        Get our credential from a remote registry 
+        """
+        Get our credential from a remote registry
         """
         from sfa.server.registry import Registries
         registries = Registries()
@@ -260,8 +262,8 @@ class SfaApi (XmlrpcApi):
 
     def prepare_response(self, result, method=""):
         """
-        Converts the specified result into a standard GENI compliant 
-        response  
+        Converts the specified result into a standard GENI compliant
+        response
         """
         # as of dec 13 2011 we only support API v2
         if self.interface.lower() in ['aggregate', 'slicemgr']:
diff --git a/sfa/trust/certificate.py b/sfa/trust/certificate.py
index 936352f7..b5296a6a 100644
--- a/sfa/trust/certificate.py
+++ b/sfa/trust/certificate.py
@@ -410,7 +410,7 @@ class Certificate:
         # certs)
 
         if string is None or string.strip() == "":
-            logger.warn("Empty string in load_from_string")
+            logger.warning("Empty string in load_from_string")
             return
 
         string = string.strip()
@@ -441,7 +441,7 @@ class Certificate:
             OpenSSL.crypto.FILETYPE_PEM, parts[0])
 
         if self.x509 is None:
-            logger.warn(
+            logger.warning(
                 "Loaded from string but cert is None: {}".format(string))
 
         # if there are more certs, then create a parent and let the parent load
@@ -467,7 +467,7 @@ class Certificate:
 
     def save_to_string(self, save_parents=True):
         if self.x509 is None:
-            logger.warn("None cert in certificate.save_to_string")
+            logger.warning("None cert in certificate.save_to_string")
             return ""
         string = OpenSSL.crypto.dump_certificate(
             OpenSSL.crypto.FILETYPE_PEM, self.x509)
@@ -694,7 +694,7 @@ class Certificate:
         # pyOpenSSL does not have a way to get extensions
         m2x509 = M2Crypto.X509.load_cert_string(certstr)
         if m2x509 is None:
-            logger.warn("No cert loaded in get_extension")
+            logger.warning("No cert loaded in get_extension")
             return None
         if m2x509.get_ext(name) is None:
             return None
@@ -903,8 +903,8 @@ class Certificate:
         # extension and hope there are no other basicConstraints
         if not self.parent.isCA and not (
                 self.parent.get_extension('basicConstraints') == 'CA:TRUE'):
-            logger.warn("verify_chain: cert {}'s parent {} is not a CA"
-                        .format(self.pretty_name(), self.parent.pretty_name()))
+            logger.warning("verify_chain: cert {}'s parent {} is not a CA"
+                            .format(self.pretty_name(), self.parent.pretty_name()))
             raise CertNotSignedByParent("{}: Parent {} not a CA"
                                         .format(self.pretty_name(),
                                                 self.parent.pretty_name()))
diff --git a/sfa/trust/credential.py b/sfa/trust/credential.py
index b957fadd..301fefe4 100644
--- a/sfa/trust/credential.py
+++ b/sfa/trust/credential.py
@@ -599,7 +599,7 @@ class Credential(object):
                                     self.gidCaller.get_urn(),
                                     self.gidObject.get_urn(),
                                     oldAttr.name, oldAttr.value, attr.value)
-                        logger.warn(msg)
+                        logger.warning(msg)
                         # raise CredentialNotVerifiable(
                         # "Can't encode new valid delegated credential: {}"
                         # .format(msg))
@@ -707,10 +707,10 @@ class Credential(object):
 
     def sign(self):
         if not self.issuer_privkey:
-            logger.warn("Cannot sign credential (no private key)")
+            logger.warning("Cannot sign credential (no private key)")
             return
         if not self.issuer_gid:
-            logger.warn("Cannot sign credential (no issuer gid)")
+            logger.warning("Cannot sign credential (no issuer gid)")
             return
         doc = parseString(self.get_xml())
         sigs = doc.getElementsByTagName("signatures")[0]