Enable Python3 Compatibility

Flake8 currently ignores the following errors:
H237: module is removed in python3
H238: old style class declaration
Enable them for python2/3 compatibility

Change-Id: I4dd66c8ab388119b4abab83fda48a89e108f7821
Story: 2004515
Task: 29303
Signed-off-by: Eric Barrett <eric.barrett@windriver.com>

cgcs-patch/cgcs-patch/cgcs_make_patch/make_patch_functions.py

@@ -191,7 +191,7 @@ class PatchRecipeCmdFail(PatchRecipeError):
     pass
 
 
-class PatchList:
+class PatchList(object):
     """
     Patch List
     """
@@ -571,7 +571,7 @@ class PatchList:
         print("All patches built.")
 
 
-class PackageData:
+class PackageData(object):
     """
     Package data
     """
@@ -792,7 +792,7 @@ class PackageData:
                     sys.exit(2)
 
 
-class RecipeData:
+class RecipeData(object):
     """
     Recipe data
     """
@@ -912,7 +912,7 @@ class RecipeData:
         return self.prebuilt
 
 
-class PatchRecipeData:
+class PatchRecipeData(object):
     """
     Patch recipe data
     """

cgcs-patch/cgcs-patch/cgcs_patch/base.py

@@ -16,7 +16,7 @@ import cgcs_patch.constants as constants
 from cgcs_patch.patch_functions import LOG
 
 
-class PatchService:
+class PatchService(object):
     def __init__(self):
         self.sock_out = None
         self.sock_in = None

cgcs-patch/cgcs-patch/cgcs_patch/patch_functions.py

@@ -210,7 +210,7 @@ class PackageVersion(object):
         return "%s%s-%s-%s.%s.rpm" % (prefix, pkgname, self.version, self.release, arch)
 
 
-class BasePackageData:
+class BasePackageData(object):
     """
     Information about the base package data provided by the load
     """
@@ -265,7 +265,7 @@ class BasePackageData:
         return self.pkgs[sw_rel][pkgname][arch]
 
 
-class PatchData:
+class PatchData(object):
     """
     Aggregated patch data
     """
@@ -623,7 +623,7 @@ class PatchData:
         return value
 
 
-class PatchMetadata:
+class PatchMetadata(object):
     """
     Creating metadata for a single patch
     """
@@ -713,7 +713,7 @@ class PatchMetadata:
         write_xml_file(top, fname)
 
 
-class PatchFile:
+class PatchFile(object):
     """
     Patch file
     """

cgcs-patch/cgcs-patch/cgcs_patch_id/patch_id_allocator.py

@@ -6,7 +6,7 @@
 #
 
 
-import posixfile
+import fcntl
 import string
 import time
 
@@ -18,14 +18,14 @@ def get_unique_id(filename, digits=4):
     path = "%s/%s" % (directory, filename)
     try:
         # open for update
-        file = posixfile.open(path, "r+")
-        file.lock("w|", digits)
+        file = open(path, "r+")
+        fcntl.lockf(file, fcntl.LOCK_EX, digits)
         counter = int(file.read(digits)) + 1
     except IOError:
         # create it
         try:
-            file = posixfile.open(path, "w")
-            file.lock("w|", digits)
+            file = open(path, "w")
+            fcntl.lockf(file, fcntl.LOCK_EX, digits)
         except IOError:
             print("creation of file '%s' failed" % path)
             return -1

cgcs-patch/cgcs-patch/cgcs_patch_id/patch_id_allocator_server.py

@@ -18,7 +18,7 @@ urls = (
 )
 
 
-class get_patch_id:
+class get_patch_id(object):
     def GET(self):
         data = web.input(sw_version=None, prefix="CGCS")
         output = pida.get_patch_id(data.sw_version, data.prefix)

patch-alarm/patch-alarm/patch_alarm/patch_alarm_manager.py

@@ -42,7 +42,7 @@ def start_polling():
 ###################
 # CLASSES
 ###################
-class PatchAlarmDaemon():
+class PatchAlarmDaemon(object):
     """ Daemon process representation of
         the patch monitoring program
     """

tox.ini

@@ -58,8 +58,6 @@ commands =
 # H101  Use TODO(NAME)
 # H102  Apache 2.0 license header not found
 # H105  Don't use author tags
-# H237  module posixfile is removed in Python 3
-# H238  old style class declaration
 # H306  imports not in alphabetical order
 # H401  docstring should not start with a space
 # H404  multi line docstring should start without a leading new line
@@ -69,7 +67,7 @@ commands =
 # F401 'XXXXX' imported but unused
 # F841 local variable 'XXXXXX' is assigned to but never used
 show-source = True
-ignore = H101,H102,H105,H237,H238,H306,H401,H404,H405,E501,F401,F841
+ignore = H101,H102,H105,H306,H401,H404,H405,E501,F401,F841
 exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,release-tag-*
 # TODO: H106 Don’t put vim configuration in source files (off by default).
 # H203 Use assertIs(Not)None to check for None (off by default).