Still more PyLint.

svn path=/trunk/; revision=5856

13 files changed, 104 insertions, 99 deletions

diff --git a/rp/rcynic/rcynic-cron b/rp/rcynic/rcynic-cron
index d56d706f..53bfea9f 100755
--- a/rp/rcynic/rcynic-cron
+++ b/rp/rcynic/rcynic-cron
@@ -1,14 +1,14 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2014  Dragon Research Labs ("DRL")
 # Portions copyright (C) 2013  Internet Systems Consortium ("ISC")
-# 
+#
 # Permission to use, copy, modify, and distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notices and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL AND ISC DISCLAIM ALL
 # WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
 # WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL DRL OR
@@ -96,7 +96,7 @@ else:
   run(os.path.join(rpki.autoconf.bindir, "rcynic"), "-c", os.path.join(rpki.autoconf.sysconfdir, "rcynic.conf"))
 
 run(os.path.join(rpki.autoconf.bindir, "rpki-rtr"),
-    "cronjob", 
+    "cronjob",
     os.path.join(rpki.autoconf.RCYNIC_DIR, "data/authenticated"),
     cwd = os.path.join(rpki.autoconf.RCYNIC_DIR, "rpki-rtr"))
 
diff --git a/rp/rcynic/rcynic-html b/rp/rcynic/rcynic-html
index f0a3b574..ef566440 100755
--- a/rp/rcynic/rcynic-html
+++ b/rp/rcynic/rcynic-html
@@ -1,14 +1,14 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2013--2014  Dragon Research Labs ("DRL")
 # Portions copyright (C) 2009--2012  Internet Systems Consortium ("ISC")
-# 
+#
 # Permission to use, copy, modify, and distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notices and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL AND ISC DISCLAIM ALL
 # WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
 # WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL DRL OR
@@ -134,7 +134,7 @@ class Validation_Status(object):
   @property
   def is_backup(self):
     return self.generation == "backup"
-  
+
   @property
   def is_problem(self):
     return self.label.mood != "good"
@@ -156,7 +156,7 @@ class Validation_Status(object):
     return not self.label.code.startswith("rsync_transfer_")
 
 class Problem_Mixin(object):
-  
+
   @property
   def connection_problems(self):
     result = [v for v in self.validation_status if v.is_connection_problem]
@@ -246,9 +246,9 @@ class Host(Problem_Mixin):
     # differently to indicate how succesful transfer was.  Intent is
     # that exactly one of these be defined for every value in elapsed.
 
-    "CDEF:success=failed,UNKN,elapsed,IF",
-    "CDEF:failure=connections,1,EQ,failed,*,elapsed,UNKN,IF",
-    "CDEF:partial=connections,1,NE,failed,*,elapsed,UNKN,IF",
+    r"CDEF:success=failed,UNKN,elapsed,IF",
+    r"CDEF:failure=connections,1,EQ,failed,*,elapsed,UNKN,IF",
+    r"CDEF:partial=connections,1,NE,failed,*,elapsed,UNKN,IF",
 
     # Show connection timing first, as color-coded semi-transparent
     # areas with opaque borders.  Intent is to make the colors stand
@@ -256,27 +256,27 @@ class Host(Problem_Mixin):
     # handled via an alpha channel (fourth octet of color code).  We
     # draw this stuff first so that later lines can overwrite it.
 
-    "AREA:success#00FF0080:Sync time (success)",
-    "AREA:partial#FFA50080:Sync time (partial failure)",
-    "AREA:failure#FF000080:Sync time (total failure)",
+    r"AREA:success#00FF0080:Sync time (success)",
+    r"AREA:partial#FFA50080:Sync time (partial failure)",
+    r"AREA:failure#FF000080:Sync time (total failure)",
 
-    "LINE1:success#00FF00",             # Green
-    "LINE1:partial#FFA500",             # Orange
-    "LINE1:failure#FF0000",             # Red
+    r"LINE1:success#00FF00",             # Green
+    r"LINE1:partial#FFA500",             # Orange
+    r"LINE1:failure#FF0000",             # Red
 
     # Now show object counts, as a simple black line.
 
-    "LINE1:objects#000000:Objects",     # Black
+    r"LINE1:objects#000000:Objects",     # Black
 
     # Add averages over period to chart legend.
 
-    "VDEF:avg_elapsed=elapsed,AVERAGE",
-    "VDEF:avg_connections=connections,AVERAGE",
-    "VDEF:avg_objects=objects,AVERAGE",
-    "COMMENT:\j",
-    "GPRINT:avg_elapsed:Average sync time (seconds)\: %5.2lf",
-    "GPRINT:avg_connections:Average connection count\: %5.2lf",
-    "GPRINT:avg_objects:Average object count\: %5.2lf" )
+    r"VDEF:avg_elapsed=elapsed,AVERAGE",
+    r"VDEF:avg_connections=connections,AVERAGE",
+    r"VDEF:avg_objects=objects,AVERAGE",
+    r"COMMENT:\j",
+    r"GPRINT:avg_elapsed:Average sync time (seconds)\: %5.2lf",
+    r"GPRINT:avg_connections:Average connection count\: %5.2lf",
+    r"GPRINT:avg_objects:Average object count\: %5.2lf" )
 
   graph_periods = (("week",  "-1w"),
                    ("month", "-31d"),
@@ -303,6 +303,7 @@ class Host(Problem_Mixin):
                   "%s:%s" % (self.timestamp, ":".join(str(v) for v in self.field_values))])
 
   def rrd_graph(self, html):
+    # pylint: disable=W0622
     filebase = os.path.join(args.output_directory, self.hostname)
     formats = [format for format in ("png", "svg", "eps")
                if getattr(args, format + "_width") and getattr(args, format + "_height")]
@@ -331,7 +332,7 @@ class Host(Problem_Mixin):
       svg_html.BodyElement("img", src = "%s_%s.svg" % (self.hostname, period))
       svg_html.close()
 
-  
+
 class Session(Problem_Mixin):
 
   def __init__(self):
@@ -479,7 +480,7 @@ class HTML(object):
     self.filename = os.path.join(args.output_directory, filebase + ".html")
 
     self.html = Element("html")
-    self.html.append(Comment(" Generators:\n" + 
+    self.html.append(Comment(" Generators:\n" +
                              "  " + session.rcynic_version + "\n" +
                              "  $Id$\n"))
     self.head = SubElement(self.html, "head")
@@ -546,7 +547,7 @@ class HTML(object):
         td.text = str(count)
     return table
 
-  def object_count_table(self, session):
+  def object_count_table(self, session): # pylint: disable=W0621
     table = self.BodyElement("table", rules = "all", border = "1")
     thead = SubElement(table, "thead")
     tbody = SubElement(table, "tbody")
@@ -595,7 +596,7 @@ class HTML(object):
 def main():
 
   global session
-  
+
   os.putenv("TZ", "UTC")
   time.tzset()
 
diff --git a/rp/rcynic/rcynic-svn b/rp/rcynic/rcynic-svn
index c667ec4a..28b24672 100755
--- a/rp/rcynic/rcynic-svn
+++ b/rp/rcynic/rcynic-svn
@@ -24,7 +24,6 @@ import subprocess
 import argparse
 import datetime
 import fcntl
-import glob
 import os
 
 try:
@@ -43,34 +42,34 @@ mime_types = (
   ("gbr",  "application/rpki-ghostbusters"))
 
 
-def run(*cmd, **kwargs):
+def run(*argv, **kwargs):
   """
   Run a program, displaying timing data when appropriate.
   """
 
-  t = datetime.datetime.utcnow()
-  subprocess.check_call(cmd, **kwargs)
+  _t0 = datetime.datetime.utcnow()
+  subprocess.check_call(argv, **kwargs)
   if args.show_timing:
-    now = datetime.datetime.utcnow()
-    print now, (now - t), " ".join(cmd)
+    _t1 = datetime.datetime.utcnow()
+    print _t1, (_t1 - _t0), " ".join(argv)
 
 
-def runxml(*cmd):
+def runxml(*argv):
   """
 
   Run a program which produces XML output, displaying timing data when
   appropriate and returning an ElementTree constructed from the
   program's output.
   """
-  t = datetime.datetime.utcnow()
-  p = subprocess.Popen(cmd, stdout = subprocess.PIPE)
+  _t0 = datetime.datetime.utcnow()
+  p = subprocess.Popen(argv, stdout = subprocess.PIPE)
   x = ElementTree(file = p.stdout)
   s = p.wait()
   if s:
-    raise subprocess.CalledProcessError(s, cmd[0])
+    raise subprocess.CalledProcessError(s, argv[0])
   if args.show_timing:
-    now = datetime.datetime.utcnow()
-    print now, (now - t), " ".join(cmd)
+    _t1 = datetime.datetime.utcnow()
+    print _t1, (_t1 - _t0), " ".join(argv)
   return x
 
 
@@ -188,5 +187,5 @@ run("svn", "commit", "--quiet", "--message", "Auto update.", args.working_direct
 run("svn", "update", "--quiet", args.working_directory)
 
 if args.show_timing:
-  now = datetime.datetime.utcnow()
-  print now, now - t0, "total runtime"
+  t1 = datetime.datetime.utcnow()
+  print t1, t1 - t0, "total runtime"
diff --git a/rp/rcynic/rcynic-text b/rp/rcynic/rcynic-text
index c837e88b..db4126ce 100755
--- a/rp/rcynic/rcynic-text
+++ b/rp/rcynic/rcynic-text
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2012 Internet Systems Consortium, Inc. ("ISC")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
@@ -88,7 +88,7 @@ class Session(object):
     hostnames = sorted(hostname for hostname in self.hosts if hostname is not None)
     hostwidth = max(len(hostname) for hostname in hostnames + ["Hostname"])
     separator = "+-%s-+-%s-+" % (
-      "-" * hostwidth, 
+      "-" * hostwidth,
       "-+-".join("-" * label.width for label in visible))
     print separator
     for i in xrange(max(len(label.lines) for label in visible)):
diff --git a/rp/rcynic/rpki-torrent.py b/rp/rcynic/rpki-torrent.py
index c823aad9..2c6aa64d 100644
--- a/rp/rcynic/rpki-torrent.py
+++ b/rp/rcynic/rpki-torrent.py
@@ -75,16 +75,29 @@ class CouldNotFindTorrents(Exception):
 class UseTheSourceLuke(Exception):
   "Use The Source, Luke."
 
+cfg = None
+
 def main():
   try:
-    syslog_flags = syslog.LOG_PID;
+    syslog_flags = syslog.LOG_PID
     if os.isatty(sys.stderr.fileno()):
       syslog_flags |= syslog.LOG_PERROR
     syslog.openlog("rpki-torrent", syslog_flags)
 
+    # If I seriously expected this script to get a lot of further use,
+    # I might rewrite this using subparsers, but it'd be a bit tricky
+    # as argparse doesn't support making the subparser argument
+    # optional and transmission gives no sane way to provide arguments
+    # when running a completion script.  So, for the moment, let's
+    # just fix the bugs accidently introduced while converting the
+    # universe to argparse without making any radical changes to the
+    # program structure here, even if the result looks kind of klunky.
+
     parser = argparse.ArgumentParser(description = __doc__)
     parser.add_argument("-c", "--config",
                         help = "configuration file")
+    parser.add_argument("action", choices = ("poll", "generate", "mirror"), nargs = "?",
+                        help = "action to take")
     args = parser.parse_args()
 
     global cfg
@@ -95,22 +108,21 @@ def main():
               for dn in ("/var/rcynic/etc", "/usr/local/etc", "/etc")])
 
     if cfg.act_as_generator:
-      if len(argv) == 1 and argv[0] == "generate":
+      if args.action == "generate":
         generator_main()
-      elif len(argv) == 1 and argv[0] == "mirror":
+      elif args.action == "mirror":
         mirror_main()
       else:
         raise UseTheSourceLuke
-
     else:
-      if len(argv) == 0 and all(v in os.environ for v in tr_env_vars):
+      if args.action is None and all(v in os.environ for v in tr_env_vars):
         torrent_completion_main()
-      elif len(argv) == 1 and argv[0] == "poll":
+      elif args.action == "poll":
         poll_main()
       else:
         raise UseTheSourceLuke
 
-  except Exception, e:
+  except:
     for line in traceback.format_exc().splitlines():
       syslog.syslog(line)
     sys.exit(1)
@@ -126,7 +138,7 @@ def generator_main():
       self._log(paramiko.common.DEBUG, 'atomic_rename(%r, %r)' % (oldpath, newpath))
       self._request(paramiko.sftp.CMD_EXTENDED, "posix-rename@openssh.com", oldpath, newpath)
 
-  z = ZipFile(url = cfg.generate_url, dir = cfg.zip_dir)
+  z = ZipFile(url = cfg.generate_url, dn = cfg.zip_dir)
   client = TransmissionClient()
 
   client.remove_torrents(z.torrent_name)
@@ -147,7 +159,7 @@ def generator_main():
   except OSError, e:
     if e.errno != errno.ENOENT:
       raise
-  ignore_output_for_now = subprocess.check_output(
+  ignore_output_for_now = subprocess.check_output( # pylint: disable=W0612
     (cfg.mktorrent_prog,
      "-a", cfg.tracker_url,
      "-c", "RPKI unauthenticated data snapshot generated by rpki-torrent",
@@ -212,7 +224,7 @@ def mirror_main():
 
   for zip_url in cfg.zip_urls:
     if zip_url != cfg.generate_url:
-      z = ZipFile(url = zip_url, dir = cfg.zip_dir, ta = cfg.zip_ta)
+      z = ZipFile(url = zip_url, dn = cfg.zip_dir, ta = cfg.zip_ta)
       if z.fetch():
         client.remove_torrents(z.torrent_name)
         syslog.syslog("Mirroring torrent %s" % z.torrent_name)
@@ -226,7 +238,7 @@ def mirror_main():
 def poll_main():
   for zip_url in cfg.zip_urls:
 
-    z = ZipFile(url = zip_url, dir = cfg.zip_dir, ta = cfg.zip_ta)
+    z = ZipFile(url = zip_url, dn = cfg.zip_dir, ta = cfg.zip_ta)
     client = TransmissionClient()
 
     if z.fetch():
@@ -242,7 +254,7 @@ def torrent_completion_main():
   torrent_name = os.getenv("TR_TORRENT_NAME")
   torrent_id = int(os.getenv("TR_TORRENT_ID"))
 
-  z = ZipFile(url = cfg.find_url(torrent_name), dir = cfg.zip_dir, ta = cfg.zip_ta)
+  z = ZipFile(url = cfg.find_url(torrent_name), dn = cfg.zip_dir, ta = cfg.zip_ta)
   client = TransmissionClient()
   torrent = client.info([torrent_id]).popitem()[1]
 
@@ -324,12 +336,12 @@ class ZipFile(object):
   may first need to be fetched via HTTPS.
   """
 
-  def __init__(self, url, dir, ta = None, verbose = True):
+  def __init__(self, url, dn, ta = None, verbose = True):
     self.url = url
-    self.dir = dir
+    self.dir = dn
     self.ta = ta
     self.verbose = verbose
-    self.filename = os.path.join(dir, os.path.basename(url))
+    self.filename = os.path.join(dn, os.path.basename(url))
     self.changed = False
     self.zf = None
     self.peercert = None
@@ -401,7 +413,7 @@ class ZipFile(object):
     tempname = self.filename + ".new"
     f = open(tempname, "wb")
     n = int(r.info()["Content-Length"])
-    for i in xrange(0, n - bufsize, bufsize):
+    for i in xrange(0, n - bufsize, bufsize): # pylint: disable=W0612
       f.write(r.read(bufsize))
     f.write(r.read())
     f.close()
@@ -510,7 +522,7 @@ def create_manifest(topdir, torrent_name):
 
   result = {}
   topdir = os.path.abspath(topdir)
-  for dirpath, dirnames, filenames in os.walk(os.path.join(topdir, torrent_name)):
+  for dirpath, dirnames, filenames in os.walk(os.path.join(topdir, torrent_name)): # pylint: disable=W0612
     for filename in filenames:
       filename = os.path.join(dirpath, filename)
       f = open(filename, "rb")
@@ -697,7 +709,7 @@ class MyConfigParser(ConfigParser.RawConfigParser):
       yield getter(self.rpki_torrent_section, name)
     name += "."
     names = [i for i in self.options(self.rpki_torrent_section) if i.startswith(name) and i[len(name):].isdigit()]
-    names.sort(key = lambda s: int(s[len(name):]))
+    names.sort(key = lambda s: int(s[len(name):])) # pylint: disable=W0631
     for name in names:
       yield getter(self.rpki_torrent_section, name)
 
diff --git a/rp/rcynic/validation_status b/rp/rcynic/validation_status
index 1ff17e75..a3ee36f1 100755
--- a/rp/rcynic/validation_status
+++ b/rp/rcynic/validation_status
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2012 Internet Systems Consortium, Inc. ("ISC")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
diff --git a/rp/utils/find_roa b/rp/utils/find_roa
index 1fc0af3d..4cfcccac 100755
--- a/rp/utils/find_roa
+++ b/rp/utils/find_roa
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2014 Dragon Research Labs ("DRL")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL DRL BE LIABLE FOR ANY SPECIAL, DIRECT,
@@ -22,8 +22,6 @@ matching specified prefixes.
 """
 
 import os
-import sys
-import base64
 import argparse
 import rpki.POW
 import rpki.oids
@@ -54,7 +52,7 @@ class Prefix(object):
 
   def __init__(self, val):
     addr, length = val.split("/")
-    length, sep, maxlength = length.partition("-")
+    length, sep, maxlength = length.partition("-") # pylint: disable=W0612
     self.prefix = rpki.POW.IPAddress(addr)
     self.length = int(length)
     self.maxlength = int(maxlength) if maxlength else self.length
diff --git a/rp/utils/hashdir b/rp/utils/hashdir
index 2f02cd3b..d3fe393c 100755
--- a/rp/utils/hashdir
+++ b/rp/utils/hashdir
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2014 Dragon Research Labs ("DRL")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL DRL BE LIABLE FOR ANY SPECIAL, DIRECT,
diff --git a/rp/utils/print_roa b/rp/utils/print_roa
index fd7308d1..d5db0c3c 100755
--- a/rp/utils/print_roa
+++ b/rp/utils/print_roa
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2014 Dragon Research Labs ("DRL")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL DRL BE LIABLE FOR ANY SPECIAL, DIRECT,
@@ -21,8 +21,6 @@ Pretty-print the content of a ROA.  Does NOT attempt to verify the
 signature.
 """
 
-import os
-import sys
 import argparse
 import rpki.POW
 
diff --git a/rp/utils/print_rpki_manifest b/rp/utils/print_rpki_manifest
index 778b4310..5ebc6356 100755
--- a/rp/utils/print_rpki_manifest
+++ b/rp/utils/print_rpki_manifest
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2014 Dragon Research Labs ("DRL")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL DRL BE LIABLE FOR ANY SPECIAL, DIRECT,
@@ -21,8 +21,6 @@ Pretty-print the content of a manifest.  Does NOT attempt to verify the
 signature.
 """
 
-import os
-import sys
 import argparse
 import rpki.POW
 import rpki.oids
diff --git a/rp/utils/scan_roas b/rp/utils/scan_roas
index 1f5746b1..a1b64f01 100755
--- a/rp/utils/scan_roas
+++ b/rp/utils/scan_roas
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2014 Dragon Research Labs ("DRL")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL DRL BE LIABLE FOR ANY SPECIAL, DIRECT,
diff --git a/rp/utils/scan_routercerts b/rp/utils/scan_routercerts
index aa3ed9e6..081a6293 100755
--- a/rp/utils/scan_routercerts
+++ b/rp/utils/scan_routercerts
@@ -1,12 +1,12 @@
 #!/usr/bin/env python
 # $Id$
-# 
+#
 # Copyright (C) 2014 Dragon Research Labs ("DRL")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL DRL BE LIABLE FOR ANY SPECIAL, DIRECT,
diff --git a/rp/utils/uri b/rp/utils/uri
index e095eb30..e72d5e0d 100755
--- a/rp/utils/uri
+++ b/rp/utils/uri
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 #
 # $Id$
-# 
+#
 # Copyright (C) 2014 Dragon Research Labs ("DRL")
-# 
+#
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
 # copyright notice and this permission notice appear in all copies.
-# 
+#
 # THE SOFTWARE IS PROVIDED "AS IS" AND DRL DISCLAIMS ALL WARRANTIES WITH
 # REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 # AND FITNESS.  IN NO EVENT SHALL DRL BE LIABLE FOR ANY SPECIAL, DIRECT,
@@ -24,7 +24,6 @@ Input files must be in DER format and may be either X.509v3 certificates
 or CMS objects which contain X.509v3 certificates in the CMS wrapper.
 """
 
-import os
 import argparse
 import rpki.POW
 
@@ -41,7 +40,7 @@ class Certificate(object):
   def __init__(self, fn):
     try:
       x = rpki.POW.X509.derReadFile(fn)
-    except:
+    except:                             # pylint: disable=W0702
       try:
         cms = rpki.POW.CMS.derReadFile(fn)
         cms.extractWithoutVerifying()