[ovs-dev] [PATCH 39/55] ovs-pcap: Fix Python 3 compatibility.

[Russell Bryant]

Also address style errors found by flake8 and add it to the list of
files checked in the pep8 tox environment.

Signed-off-by: Russell Bryant <russell at ovn.org>
---
 python/tox.ini        |  2 +-
 utilities/ovs-pcap.in | 17 +++++++++++------
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/python/tox.ini b/python/tox.ini
index 8f50a87..c55c3db 100644
--- a/python/tox.ini
+++ b/python/tox.ini
@@ -14,7 +14,7 @@ deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 
 [testenv:pep8]
-commands = flake8 --exclude="*testsuite.dir*" ovs/ ovstest/ {toxinidir}/../tests/ {toxinidir}/../debian/ovs-monitor-ipsec
+commands = flake8 --exclude="*testsuite.dir*" ovs/ ovstest/ {toxinidir}/../tests/ {toxinidir}/../debian/ovs-monitor-ipsec {toxinidir}/../utilities/ovs-pcap.in
 
 [flake8]
 ignore=E111,E113,E126,E127,E128,E129,E131
diff --git a/utilities/ovs-pcap.in b/utilities/ovs-pcap.in
index 5306480..ae30047 100755
--- a/utilities/ovs-pcap.in
+++ b/utilities/ovs-pcap.in
@@ -14,14 +14,18 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import print_function
+
 import binascii
 import getopt
 import struct
 import sys
 
+
 class PcapException(Exception):
     pass
 
+
 class PcapReader(object):
     def __init__(self, file_name):
         self.file = open(file_name, "rb")
@@ -53,8 +57,9 @@ class PcapReader(object):
         return packet
 argv0 = sys.argv[0]
 
+
 def usage():
-    print """\
+    print("""\
 %(argv0)s: print pcap file packet data as hex
 usage: %(argv0)s FILE
 where FILE is a PCAP file.
@@ -62,7 +67,7 @@ where FILE is a PCAP file.
 The following options are also available:
   -h, --help                  display this help message
   -V, --version               display version information\
-""" % {'argv0': argv0}
+""" % {'argv0': argv0})
     sys.exit(0)
 
 if __name__ == "__main__":
@@ -70,7 +75,7 @@ if __name__ == "__main__":
         try:
             options, args = getopt.gnu_getopt(sys.argv[1:], 'hV',
                                               ['help', 'version'])
-        except getopt.GetoptException, geo:
+        except getopt.GetoptException as geo:
             sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
             sys.exit(1)
 
@@ -78,7 +83,7 @@ if __name__ == "__main__":
             if key in ['-h', '--help']:
                 usage()
             elif key in ['-V', '--version']:
-                print "ovs-pcap (Open vSwitch) @VERSION@"
+                print("ovs-pcap (Open vSwitch) @VERSION@")
             else:
                 sys.exit(0)
 
@@ -93,9 +98,9 @@ if __name__ == "__main__":
             if packet is None:
                 break
 
-            print binascii.hexlify(packet)
+            print(binascii.hexlify(packet))
 
-    except PcapException, e:
+    except PcapException as e:
         sys.stderr.write("%s: %s\n" % (argv0, e))
         sys.exit(1)
 
-- 
2.5.0