classes/lib: Complete transition to python3

This patch contains all the other misc pieces of the transition to
python3 which didn't make sense to be broken into individual patches.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

34 files changed, 114 insertions, 100 deletions

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 4be0a7e487..357062b3c1 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -10,7 +10,7 @@ inherit utility-tasks
 inherit metadata_scm
 inherit logging
 
-OE_IMPORTS += "os sys time oe.path oe.utils oe.data oe.package oe.packagegroup oe.sstatesig oe.lsb oe.cachedpath"
+OE_IMPORTS += "os sys time oe.path oe.utils oe.types oe.package oe.packagegroup oe.sstatesig oe.lsb oe.cachedpath"
 OE_IMPORTS[type] = "list"
 
 def oe_import(d):
diff --git a/meta/classes/buildhistory.bbclass b/meta/classes/buildhistory.bbclass
index 1ccd9ee485..6995d06950 100644
--- a/meta/classes/buildhistory.bbclass
+++ b/meta/classes/buildhistory.bbclass
@@ -145,7 +145,7 @@ python buildhistory_emit_pkghistory() {
                 elif name == "RCONFLICTS":
                     pkginfo.rconflicts = value
                 elif name == "PKGSIZE":
-                    pkginfo.size = long(value)
+                    pkginfo.size = int(value)
                 elif name == "FILES":
                     pkginfo.files = value
                 elif name == "FILELIST":
diff --git a/meta/classes/populate_sdk_ext.bbclass b/meta/classes/populate_sdk_ext.bbclass
index a9c6fe5933..b9d9543409 100644
--- a/meta/classes/populate_sdk_ext.bbclass
+++ b/meta/classes/populate_sdk_ext.bbclass
@@ -129,8 +129,8 @@ python copy_buildsystem () {
     d.setVar('scriptrelpath', scriptrelpath)
 
     # Write out config file for devtool
-    import ConfigParser
-    config = ConfigParser.SafeConfigParser()
+    import configparser
+    config = configparser.SafeConfigParser()
     config.add_section('General')
     config.set('General', 'bitbake_subdir', conf_bbpath)
     config.set('General', 'init_path', conf_initpath)
diff --git a/meta/classes/report-error.bbclass b/meta/classes/report-error.bbclass
index 20d2bef797..5cbf8f07fd 100644
--- a/meta/classes/report-error.bbclass
+++ b/meta/classes/report-error.bbclass
@@ -43,7 +43,7 @@ python errorreport_handler () {
             data['target_sys'] = e.data.getVar("TARGET_SYS", True)
             data['failures'] = []
             data['component'] = e.getPkgs()[0]
-            data['branch_commit'] = base_detect_branch(e.data) + ": " + base_detect_revision(e.data)
+            data['branch_commit'] = str(base_detect_branch(e.data)) + ": " + str(base_detect_revision(e.data))
             lock = bb.utils.lockfile(datafile + '.lock')
             errorreport_savedata(e, data, "error-report.txt")
             bb.utils.unlockfile(lock)
diff --git a/meta/lib/oe/classutils.py b/meta/lib/oe/classutils.py
index 98bb059a71..e7856c86f2 100644
--- a/meta/lib/oe/classutils.py
+++ b/meta/lib/oe/classutils.py
@@ -1,4 +1,11 @@
-class ClassRegistry(type):
+
+class ClassRegistryMeta(type):
+    """Give each ClassRegistry their own registry"""
+    def __init__(cls, name, bases, attrs):
+        cls.registry = {}
+        type.__init__(cls, name, bases, attrs)
+
+class ClassRegistry(type, metaclass=ClassRegistryMeta):
     """Maintain a registry of classes, indexed by name.
 
 Note that this implementation requires that the names be unique, as it uses
@@ -12,12 +19,6 @@ Subclasses of ClassRegistry may define an 'implemented' property to exert
 control over whether the class will be added to the registry (e.g. to keep
 abstract base classes out of the registry)."""
     priority = 0
-    class __metaclass__(type):
-        """Give each ClassRegistry their own registry"""
-        def __init__(cls, name, bases, attrs):
-            cls.registry = {}
-            type.__init__(cls, name, bases, attrs)
-
     def __init__(cls, name, bases, attrs):
         super(ClassRegistry, cls).__init__(name, bases, attrs)
         try:
diff --git a/meta/lib/oe/distro_check.py b/meta/lib/oe/distro_check.py
index ba1bba678d..746e242f5d 100644
--- a/meta/lib/oe/distro_check.py
+++ b/meta/lib/oe/distro_check.py
@@ -1,8 +1,8 @@
 from contextlib import contextmanager
 @contextmanager
 def create_socket(url, d):
-    import urllib
-    socket = urllib.urlopen(url, proxies=get_proxies(d))
+    import urllib.request, urllib.parse, urllib.error
+    socket = urllib.request.urlopen(url, proxies=get_proxies(d))
     try:
         yield socket
     finally:
diff --git a/meta/lib/oe/maketype.py b/meta/lib/oe/maketype.py
index 139f333691..f88981dd90 100644
--- a/meta/lib/oe/maketype.py
+++ b/meta/lib/oe/maketype.py
@@ -6,7 +6,8 @@ the arguments of the type's factory for details.
 """
 
 import inspect
-import types
+import oe.types as types
+import collections
 
 available_types = {}
 
@@ -53,7 +54,9 @@ def get_callable_args(obj):
     if type(obj) is type:
         obj = obj.__init__
 
-    args, varargs, keywords, defaults = inspect.getargspec(obj)
+    sig = inspect.signature(obj)
+    args = list(sig.parameters.keys())
+    defaults = list(s for s in sig.parameters.keys() if sig.parameters[s].default != inspect.Parameter.empty)
     flaglist = []
     if args:
         if len(args) > 1 and args[0] == 'self':
@@ -93,7 +96,7 @@ for name in dir(types):
         continue
 
     obj = getattr(types, name)
-    if not callable(obj):
+    if not isinstance(obj, collections.Callable):
         continue
 
     register(name, obj)
diff --git a/meta/lib/oe/manifest.py b/meta/lib/oe/manifest.py
index ec2ef500b2..95f8eb2df3 100644
--- a/meta/lib/oe/manifest.py
+++ b/meta/lib/oe/manifest.py
@@ -4,11 +4,10 @@ import re
 import bb
 
 
-class Manifest(object):
+class Manifest(object, metaclass=ABCMeta):
     """
     This is an abstract class. Do not instantiate this directly.
     """
-    __metaclass__ = ABCMeta
 
     PKG_TYPE_MUST_INSTALL = "mip"
     PKG_TYPE_MULTILIB = "mlp"
diff --git a/meta/lib/oe/package.py b/meta/lib/oe/package.py
index 5bb15bbc09..faa0ab2edb 100644
--- a/meta/lib/oe/package.py
+++ b/meta/lib/oe/package.py
@@ -8,7 +8,7 @@ def runstrip(arg):
     # 8 - shared library
     # 16 - kernel module
 
-    import commands, stat, subprocess
+    import stat, subprocess
 
     (file, elftype, strip) = arg
 
diff --git a/meta/lib/oe/package_manager.py b/meta/lib/oe/package_manager.py
index 54e6970298..71e5b502e7 100644
--- a/meta/lib/oe/package_manager.py
+++ b/meta/lib/oe/package_manager.py
@@ -89,9 +89,7 @@ def opkg_query(cmd_output):
     return output
 
 
-class Indexer(object):
-    __metaclass__ = ABCMeta
-
+class Indexer(object, metaclass=ABCMeta):
     def __init__(self, d, deploy_dir):
         self.d = d
         self.deploy_dir = deploy_dir
@@ -342,9 +340,7 @@ class DpkgIndexer(Indexer):
 
 
 
-class PkgsList(object):
-    __metaclass__ = ABCMeta
-
+class PkgsList(object, metaclass=ABCMeta):
     def __init__(self, d, rootfs_dir):
         self.d = d
         self.rootfs_dir = rootfs_dir
@@ -512,11 +508,10 @@ class DpkgPkgsList(PkgsList):
         return opkg_query(cmd_output)
 
 
-class PackageManager(object):
+class PackageManager(object, metaclass=ABCMeta):
     """
     This is an abstract class. Do not instantiate this directly.
     """
-    __metaclass__ = ABCMeta
 
     def __init__(self, d):
         self.d = d
diff --git a/meta/lib/oe/qa.py b/meta/lib/oe/qa.py
index 2c301419b0..75e7df8546 100644
--- a/meta/lib/oe/qa.py
+++ b/meta/lib/oe/qa.py
@@ -50,41 +50,41 @@ class ELFFile:
         if len(self.data) < ELFFile.EI_NIDENT + 4:
             raise NotELFFileError("%s is not an ELF" % self.name)
 
-        self.my_assert(self.data[0], chr(0x7f) )
-        self.my_assert(self.data[1], 'E')
-        self.my_assert(self.data[2], 'L')
-        self.my_assert(self.data[3], 'F')
+        self.my_assert(self.data[0], 0x7f)
+        self.my_assert(self.data[1], ord('E'))
+        self.my_assert(self.data[2], ord('L'))
+        self.my_assert(self.data[3], ord('F'))
         if self.bits == 0:
-            if self.data[ELFFile.EI_CLASS] == chr(ELFFile.ELFCLASS32):
+            if self.data[ELFFile.EI_CLASS] == ELFFile.ELFCLASS32:
                 self.bits = 32
-            elif self.data[ELFFile.EI_CLASS] == chr(ELFFile.ELFCLASS64):
+            elif self.data[ELFFile.EI_CLASS] == ELFFile.ELFCLASS64:
                 self.bits = 64
             else:
                 # Not 32-bit or 64.. lets assert
                 raise NotELFFileError("ELF but not 32 or 64 bit.")
         elif self.bits == 32:
-            self.my_assert(self.data[ELFFile.EI_CLASS], chr(ELFFile.ELFCLASS32))
+            self.my_assert(self.data[ELFFile.EI_CLASS], ELFFile.ELFCLASS32)
         elif self.bits == 64:
-            self.my_assert(self.data[ELFFile.EI_CLASS], chr(ELFFile.ELFCLASS64))
+            self.my_assert(self.data[ELFFile.EI_CLASS], ELFFile.ELFCLASS64)
         else:
             raise NotELFFileError("Must specify unknown, 32 or 64 bit size.")
-        self.my_assert(self.data[ELFFile.EI_VERSION], chr(ELFFile.EV_CURRENT) )
+        self.my_assert(self.data[ELFFile.EI_VERSION], ELFFile.EV_CURRENT)
 
         self.sex = self.data[ELFFile.EI_DATA]
-        if self.sex == chr(ELFFile.ELFDATANONE):
+        if self.sex == ELFFile.ELFDATANONE:
             raise NotELFFileError("self.sex == ELFDATANONE")
-        elif self.sex == chr(ELFFile.ELFDATA2LSB):
+        elif self.sex == ELFFile.ELFDATA2LSB:
             self.sex = "<"
-        elif self.sex == chr(ELFFile.ELFDATA2MSB):
+        elif self.sex == ELFFile.ELFDATA2MSB:
             self.sex = ">"
         else:
             raise NotELFFileError("Unknown self.sex")
 
     def osAbi(self):
-        return ord(self.data[ELFFile.EI_OSABI])
+        return self.data[ELFFile.EI_OSABI]
 
     def abiVersion(self):
-        return ord(self.data[ELFFile.EI_ABIVERSION])
+        return self.data[ELFFile.EI_ABIVERSION]
 
     def abiSize(self):
         return self.bits
diff --git a/meta/lib/oe/recipeutils.py b/meta/lib/oe/recipeutils.py
index 1b8538785c..e3c4b8a759 100644
--- a/meta/lib/oe/recipeutils.py
+++ b/meta/lib/oe/recipeutils.py
@@ -11,7 +11,7 @@ import os.path
 import tempfile
 import textwrap
 import difflib
-import utils
+from . import utils
 import shutil
 import re
 import fnmatch
@@ -662,7 +662,7 @@ def bbappend_recipe(rd, destlayerdir, srcfiles, install=None, wildcardver=False,
 
                 if removevar in removevalues:
                     remove = removevalues[removevar]
-                    if isinstance(remove, basestring):
+                    if isinstance(remove, str):
                         if remove in splitval:
                             splitval.remove(remove)
                             changed = True
diff --git a/meta/lib/oe/rootfs.py b/meta/lib/oe/rootfs.py
index d93485819a..1fc35bdc78 100644
--- a/meta/lib/oe/rootfs.py
+++ b/meta/lib/oe/rootfs.py
@@ -10,11 +10,10 @@ import subprocess
 import re
 
 
-class Rootfs(object):
+class Rootfs(object, metaclass=ABCMeta):
     """
     This is an abstract class. Do not instantiate this directly.
     """
-    __metaclass__ = ABCMeta
 
     def __init__(self, d):
         self.d = d
diff --git a/meta/lib/oe/sdk.py b/meta/lib/oe/sdk.py
index 4786cc5aac..c74525f929 100644
--- a/meta/lib/oe/sdk.py
+++ b/meta/lib/oe/sdk.py
@@ -8,9 +8,7 @@ import glob
 import traceback
 
 
-class Sdk(object):
-    __metaclass__ = ABCMeta
-
+class Sdk(object, metaclass=ABCMeta):
     def __init__(self, d, manifest_dir):
         self.d = d
         self.sdk_output = self.d.getVar('SDK_OUTPUT', True)
diff --git a/meta/lib/oe/terminal.py b/meta/lib/oe/terminal.py
index 634daa9033..dc25d14ff6 100644
--- a/meta/lib/oe/terminal.py
+++ b/meta/lib/oe/terminal.py
@@ -25,9 +25,7 @@ class Registry(oe.classutils.ClassRegistry):
         return bool(cls.command)
 
 
-class Terminal(Popen):
-    __metaclass__ = Registry
-
+class Terminal(Popen, metaclass=Registry):
     def __init__(self, sh_cmd, title=None, env=None, d=None):
         fmt_sh_cmd = self.format_command(sh_cmd, title)
         try:
@@ -41,7 +39,7 @@ class Terminal(Popen):
 
     def format_command(self, sh_cmd, title):
         fmt = {'title': title or 'Terminal', 'command': sh_cmd}
-        if isinstance(self.command, basestring):
+        if isinstance(self.command, str):
             return shlex.split(self.command.format(**fmt))
         else:
             return [element.format(**fmt) for element in self.command]
diff --git a/meta/lib/oe/tests/test_path.py b/meta/lib/oe/tests/test_path.py
index 5fa24483d1..44d068143e 100644
--- a/meta/lib/oe/tests/test_path.py
+++ b/meta/lib/oe/tests/test_path.py
@@ -85,5 +85,5 @@ class TestRealPath(unittest.TestCase):
 
     def test_loop(self):
         for e in self.EXCEPTIONS:
-            self.assertRaisesRegexp(OSError, r'\[Errno %u\]' % e[1],
+            self.assertRaisesRegex(OSError, r'\[Errno %u\]' % e[1],
                                     self.__realpath, e[0], False, False)
diff --git a/meta/lib/oe/types.py b/meta/lib/oe/types.py
index 7f47c17d0e..4ae58acfac 100644
--- a/meta/lib/oe/types.py
+++ b/meta/lib/oe/types.py
@@ -33,7 +33,7 @@ def choice(value, choices):
     Acts as a multiple choice for the user.  To use this, set the variable
     type flag to 'choice', and set the 'choices' flag to a space separated
     list of valid values."""
-    if not isinstance(value, basestring):
+    if not isinstance(value, str):
         raise TypeError("choice accepts a string, not '%s'" % type(value))
 
     value = value.lower()
@@ -106,7 +106,7 @@ def boolean(value):
     Valid values for false: 'no', 'n', 'false', 'f', '0'
     """
 
-    if not isinstance(value, basestring):
+    if not isinstance(value, str):
         raise TypeError("boolean accepts a string, not '%s'" % type(value))
 
     value = value.lower()
diff --git a/meta/lib/oe/utils.py b/meta/lib/oe/utils.py
index 1bbdbb4bd5..cecddc657f 100644
--- a/meta/lib/oe/utils.py
+++ b/meta/lib/oe/utils.py
@@ -46,7 +46,7 @@ def both_contain(variable1, variable2, checkvalue, d):
     val2 = d.getVar(variable2, True)
     val1 = set(val1.split())
     val2 = set(val2.split())
-    if isinstance(checkvalue, basestring):
+    if isinstance(checkvalue, str):
         checkvalue = set(checkvalue.split())
     else:
         checkvalue = set(checkvalue)
@@ -235,7 +235,7 @@ def format_pkg_list(pkg_dict, ret_format=None):
 # so implement a version here
 #
 
-from Queue import Queue
+from queue import Queue
 from threading import Thread
 
 class ThreadedWorker(Thread):
@@ -249,7 +249,7 @@ class ThreadedWorker(Thread):
         self.worker_end = worker_end
 
     def run(self):
-        from Queue import Empty
+        from queue import Empty
 
         if self.worker_init is not None:
             self.worker_init(self)
diff --git a/meta/lib/oeqa/controllers/masterimage.py b/meta/lib/oeqa/controllers/masterimage.py
index 522f9ebd76..4cb75539ee 100644
--- a/meta/lib/oeqa/controllers/masterimage.py
+++ b/meta/lib/oeqa/controllers/masterimage.py
@@ -24,9 +24,7 @@ from oeqa.utils import CommandError
 
 from abc import ABCMeta, abstractmethod
 
-class MasterImageHardwareTarget(oeqa.targetcontrol.BaseTarget):
-
-    __metaclass__ = ABCMeta
+class MasterImageHardwareTarget(oeqa.targetcontrol.BaseTarget, metaclass=ABCMeta):
 
     supported_image_fstypes = ['tar.gz', 'tar.bz2']
 
diff --git a/meta/lib/oeqa/oetest.py b/meta/lib/oeqa/oetest.py
index 4211ffc379..b4cf34b720 100644
--- a/meta/lib/oeqa/oetest.py
+++ b/meta/lib/oeqa/oetest.py
@@ -13,6 +13,7 @@ import inspect
 import subprocess
 import signal
 import shutil
+import functools
 try:
     import bb
 except ImportError:
@@ -340,7 +341,14 @@ class TestContext(object):
         for index, suite in enumerate(suites):
             set_suite_depth(suite)
             suite.index = index
-        suites.sort(cmp=lambda a,b: cmp((a.depth, a.index), (b.depth, b.index)))
+
+        def cmp(a, b):
+            return (a > b) - (a < b)
+
+        def cmpfunc(a, b):
+            return cmp((a.depth, a.index), (b.depth, b.index))
+
+        suites.sort(key=functools.cmp_to_key(cmpfunc))
 
         self.suite = testloader.suiteClass(suites)
 
diff --git a/meta/lib/oeqa/selftest/_toaster.py b/meta/lib/oeqa/selftest/_toaster.py
index c424659fdc..15ea9df9ef 100644
--- a/meta/lib/oeqa/selftest/_toaster.py
+++ b/meta/lib/oeqa/selftest/_toaster.py
@@ -2,7 +2,7 @@ import unittest
 import os
 import sys
 import shlex, subprocess
-import urllib, commands, time, getpass, re, json, shlex
+import urllib.request, urllib.parse, urllib.error, subprocess, time, getpass, re, json, shlex
 
 import oeqa.utils.ftools as ftools
 from oeqa.selftest.base import oeSelfTest
@@ -290,7 +290,7 @@ class Toaster_DB_Tests(ToasterSetup):
         layers = Layer.objects.values('id', 'layer_index_url')
         cnt_err = []
         for layer in layers:
-            resp = urllib.urlopen(layer['layer_index_url'])
+            resp = urllib.request.urlopen(layer['layer_index_url'])
             if (resp.getcode() != 200):
                 cnt_err.append(layer['id'])
         self.assertEqual(len(cnt_err), 0, msg = 'Errors for layer id: %s' % cnt_err)
diff --git a/meta/lib/oeqa/selftest/recipetool.py b/meta/lib/oeqa/selftest/recipetool.py
index e72911b0aa..a93d18e275 100644
--- a/meta/lib/oeqa/selftest/recipetool.py
+++ b/meta/lib/oeqa/selftest/recipetool.py
@@ -1,7 +1,7 @@
 import os
 import logging
 import tempfile
-import urlparse
+import urllib.parse
 
 from oeqa.utils.commands import runCmd, bitbake, get_bb_var, create_temp_layer
 from oeqa.utils.decorators import testcase
@@ -471,7 +471,7 @@ class RecipetoolAppendsrcBase(RecipetoolBase):
         '''Return the first file:// in SRC_URI for the specified recipe.'''
         src_uri = get_bb_var('SRC_URI', recipe).split()
         for uri in src_uri:
-            p = urlparse.urlparse(uri)
+            p = urllib.parse.urlparse(uri)
             if p.scheme == 'file':
                 return p.netloc + p.path
 
diff --git a/meta/lib/oeqa/selftest/sstatetests.py b/meta/lib/oeqa/selftest/sstatetests.py
index cc64c6cb68..07212ac4f1 100644
--- a/meta/lib/oeqa/selftest/sstatetests.py
+++ b/meta/lib/oeqa/selftest/sstatetests.py
@@ -264,7 +264,7 @@ SDKMACHINE = "i686"
         files2 = get_files(topdir + "/tmp-sstatesamehash2/stamps/")
         files2 = [x.replace("tmp-sstatesamehash2", "tmp-sstatesamehash").replace("i686-linux", "x86_64-linux").replace("i686" + targetvendor + "-linux", "x86_64" + targetvendor + "-linux", ) for x in files2]
         self.maxDiff = None
-        self.assertItemsEqual(files1, files2)
+        self.assertCountEqual(files1, files2)
 
 
     @testcase(1271)
@@ -298,7 +298,7 @@ NATIVELSBSTRING = \"DistroB\"
         files2 = get_files(topdir + "/tmp-sstatesamehash2/stamps/")
         files2 = [x.replace("tmp-sstatesamehash2", "tmp-sstatesamehash") for x in files2]
         self.maxDiff = None
-        self.assertItemsEqual(files1, files2)
+        self.assertCountEqual(files1, files2)
 
     @testcase(1368)
     def test_sstate_allarch_samesigs(self):
@@ -393,7 +393,7 @@ DEFAULTTUNE_virtclass-multilib-lib32 = "x86"
         files2 = get_files(topdir + "/tmp-sstatesamehash2/stamps")
         files2 = [x.replace("tmp-sstatesamehash2", "tmp-sstatesamehash") for x in files2]
         self.maxDiff = None
-        self.assertItemsEqual(files1, files2)
+        self.assertCountEqual(files1, files2)
 
 
     def test_sstate_noop_samesigs(self):
diff --git a/meta/lib/oeqa/targetcontrol.py b/meta/lib/oeqa/targetcontrol.py
index 5422a617c4..1c57efaaef 100644
--- a/meta/lib/oeqa/targetcontrol.py
+++ b/meta/lib/oeqa/targetcontrol.py
@@ -43,9 +43,7 @@ def get_target_controller(d):
         return controller(d)
 
 
-class BaseTarget(object):
-
-    __metaclass__ = ABCMeta
+class BaseTarget(object, metaclass=ABCMeta):
 
     supported_image_fstypes = []
 
diff --git a/meta/lib/oeqa/utils/commands.py b/meta/lib/oeqa/utils/commands.py
index 9a7c1d1375..18fe39ecfe 100644
--- a/meta/lib/oeqa/utils/commands.py
+++ b/meta/lib/oeqa/utils/commands.py
@@ -41,7 +41,7 @@ class Command(object):
         self.data = data
 
         self.options = dict(self.defaultopts)
-        if isinstance(self.cmd, basestring):
+        if isinstance(self.cmd, str):
             self.options["shell"] = True
         if self.data:
             self.options['stdin'] = subprocess.PIPE
@@ -123,7 +123,7 @@ def bitbake(command, ignore_status=False, timeout=None, postconfig=None, **optio
     else:
         extra_args = ""
 
-    if isinstance(command, basestring):
+    if isinstance(command, str):
         cmd = "bitbake " + extra_args + " " + command
     else:
         cmd = [ "bitbake" ] + [a for a in (command + extra_args.split(" ")) if a not in [""]]
diff --git a/meta/lib/oeqa/utils/decorators.py b/meta/lib/oeqa/utils/decorators.py
index 6fb09db417..0b23565485 100644
--- a/meta/lib/oeqa/utils/decorators.py
+++ b/meta/lib/oeqa/utils/decorators.py
@@ -115,6 +115,8 @@ class NoParsingFilter(logging.Filter):
     def filter(self, record):
         return record.levelno == 100
 
+import inspect
+
 def LogResults(original_class):
     orig_method = original_class.run
 
@@ -124,6 +126,19 @@ def LogResults(original_class):
     logfile = os.path.join(os.getcwd(),'results-'+caller+'.'+timestamp+'.log')
     linkfile = os.path.join(os.getcwd(),'results-'+caller+'.log')
 
+    def get_class_that_defined_method(meth):
+        if inspect.ismethod(meth):
+            for cls in inspect.getmro(meth.__self__.__class__):
+               if cls.__dict__.get(meth.__name__) is meth:
+                    return cls
+            meth = meth.__func__ # fallback to __qualname__ parsing
+        if inspect.isfunction(meth):
+            cls = getattr(inspect.getmodule(meth),
+                          meth.__qualname__.split('.<locals>', 1)[0].rsplit('.', 1)[0])
+            if isinstance(cls, type):
+               return cls
+        return None
+
     #rewrite the run method of unittest.TestCase to add testcase logging
     def run(self, result, *args, **kws):
         orig_method(self, result, *args, **kws)
@@ -135,7 +150,7 @@ def LogResults(original_class):
         except AttributeError:
             test_case = self._testMethodName
 
-        class_name = str(testMethod.im_class).split("'")[1]
+        class_name = str(get_class_that_defined_method(testMethod)).split("'")[1]
 
         #create custom logging level for filtering.
         custom_log_level = 100
diff --git a/meta/lib/oeqa/utils/dump.py b/meta/lib/oeqa/utils/dump.py
index 63a591d366..71422a9aea 100644
--- a/meta/lib/oeqa/utils/dump.py
+++ b/meta/lib/oeqa/utils/dump.py
@@ -3,7 +3,7 @@ import sys
 import errno
 import datetime
 import itertools
-from commands import runCmd
+from .commands import runCmd
 
 def get_host_dumper(d):
     cmds = d.getVar("testimage_dump_host", True)
diff --git a/meta/lib/oeqa/utils/httpserver.py b/meta/lib/oeqa/utils/httpserver.py
index 76518d8ef9..bd76f36468 100644
--- a/meta/lib/oeqa/utils/httpserver.py
+++ b/meta/lib/oeqa/utils/httpserver.py
@@ -1,8 +1,8 @@
-import SimpleHTTPServer
+import http.server
 import multiprocessing
 import os
 
-class HTTPServer(SimpleHTTPServer.BaseHTTPServer.HTTPServer):
+class HTTPServer(http.server.HTTPServer):
 
     def server_start(self, root_dir):
         import signal
@@ -10,7 +10,7 @@ class HTTPServer(SimpleHTTPServer.BaseHTTPServer.HTTPServer):
         os.chdir(root_dir)
         self.serve_forever()
 
-class HTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
+class HTTPRequestHandler(http.server.SimpleHTTPRequestHandler):
 
     def log_message(self, format_str, *args):
         pass
diff --git a/meta/lib/oeqa/utils/logparser.py b/meta/lib/oeqa/utils/logparser.py
index 87b50354cd..b377dcd271 100644
--- a/meta/lib/oeqa/utils/logparser.py
+++ b/meta/lib/oeqa/utils/logparser.py
@@ -3,7 +3,7 @@
 import sys
 import os
 import re
-import ftools
+from . import ftools
 
 
 # A parser that can be used to identify weather a line is a test result or a section statement.
diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py
index 3d60433cae..e408fbbf3a 100644
--- a/meta/lib/oeqa/utils/qemurunner.py
+++ b/meta/lib/oeqa/utils/qemurunner.py
@@ -23,8 +23,8 @@ logger = logging.getLogger("BitBake.QemuRunner")
 
 # Get Unicode non printable control chars
 control_range = list(range(0,32))+list(range(127,160))
-control_chars = [unichr(x) for x in control_range
-                if unichr(x) not in string.printable]
+control_chars = [chr(x) for x in control_range
+                if chr(x) not in string.printable]
 re_control_char = re.compile('[%s]' % re.escape("".join(control_chars)))
 
 class QemuRunner:
@@ -220,6 +220,7 @@ class QemuRunner:
             stopread = False
             qemusock = None
             bootlog = ''
+            data = b''
             while time.time() < endtime and not stopread:
                 sread, swrite, serror = select.select(socklist, [], [], 5)
                 for sock in sread:
@@ -283,13 +284,14 @@ class QemuRunner:
         if hasattr(self, "origchldhandler"):
             signal.signal(signal.SIGCHLD, self.origchldhandler)
         if self.runqemu:
-            os.kill(self.monitorpid, signal.SIGKILL)
-            logger.info("Sending SIGTERM to runqemu")
-            try:
-                os.killpg(os.getpgid(self.runqemu.pid), signal.SIGTERM)
-            except OSError as e:
-                if e.errno != errno.ESRCH:
-                    raise
+            if hasattr(self, "monitorpid"):
+                os.kill(self.monitorpid, signal.SIGKILL)
+                logger.info("Sending SIGTERM to runqemu")
+                try:
+                    os.killpg(os.getpgid(self.runqemu.pid), signal.SIGTERM)
+                except OSError as e:
+                    if e.errno != errno.ESRCH:
+                        raise
             endtime = time.time() + self.runqemutime
             while self.runqemu.poll() is None and time.time() < endtime:
                 time.sleep(1)
@@ -448,7 +450,7 @@ class LoggingThread(threading.Thread):
     def stop(self):
         self.logger.info("Stopping logging thread")
         if self.running:
-            os.write(self.writepipe, "stop")
+            os.write(self.writepipe, bytes("stop", "utf-8"))
 
     def teardown(self):
         self.logger.info("Tearing down logging thread")
diff --git a/meta/lib/oeqa/utils/qemutinyrunner.py b/meta/lib/oeqa/utils/qemutinyrunner.py
index 054ab0ec5d..c823157ad6 100644
--- a/meta/lib/oeqa/utils/qemutinyrunner.py
+++ b/meta/lib/oeqa/utils/qemutinyrunner.py
@@ -13,7 +13,7 @@ import re
 import socket
 import select
 import bb
-from qemurunner import QemuRunner
+from .qemurunner import QemuRunner
 
 class QemuTinyRunner(QemuRunner):
 
diff --git a/meta/lib/oeqa/utils/targetbuild.py b/meta/lib/oeqa/utils/targetbuild.py
index f850d78df1..d538f6b65f 100644
--- a/meta/lib/oeqa/utils/targetbuild.py
+++ b/meta/lib/oeqa/utils/targetbuild.py
@@ -10,9 +10,7 @@ import bb.utils
 import subprocess
 from abc import ABCMeta, abstractmethod
 
-class BuildProject():
-
-    __metaclass__ = ABCMeta
+class BuildProject(metaclass=ABCMeta):
 
     def __init__(self, d, uri, foldername=None, tmpdir="/tmp/"):
         self.d = d
diff --git a/meta/lib/oeqa/utils/testexport.py b/meta/lib/oeqa/utils/testexport.py
index 4fbf4bdcb3..57be2ca449 100644
--- a/meta/lib/oeqa/utils/testexport.py
+++ b/meta/lib/oeqa/utils/testexport.py
@@ -6,7 +6,7 @@
 
 import os, re, glob as g, shutil as sh,sys
 from time import sleep
-from commands import runCmd
+from .commands import runCmd
 from difflib import SequenceMatcher as SM
 
 try:
diff --git a/scripts/oe-selftest b/scripts/oe-selftest
index db132fdf9f..b1ecf7f322 100755
--- a/scripts/oe-selftest
+++ b/scripts/oe-selftest
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright (c) 2013 Intel Corporation
 #
@@ -34,6 +34,8 @@ import subprocess
 import time as t
 import re
 import fnmatch
+import collections
+import imp
 
 sys.path.insert(0, os.path.dirname(os.path.realpath(__file__)) + '/lib')
 import scriptpath
@@ -414,7 +416,7 @@ def coverage_report():
         # Coverage under version 4 uses coverage.coverage
         from coverage import coverage as Coverage
 
-    import cStringIO as StringIO
+    import io as StringIO
     from coverage.misc import CoverageException
 
     cov_output = StringIO.StringIO()
@@ -442,7 +444,7 @@ def main():
     bbpath = get_bb_var('BBPATH').split(':')
     layer_libdirs = [p for p in (os.path.join(l, 'lib') for l in bbpath) if os.path.exists(p)]
     sys.path.extend(layer_libdirs)
-    reload(oeqa.selftest)
+    imp.reload(oeqa.selftest)
 
     if args.run_tests_by and len(args.run_tests_by) >= 2:
         valid_options = ['name', 'class', 'module', 'id', 'tag']
@@ -491,7 +493,7 @@ def main():
                         if isinstance(t, type(oeSelfTest)) and issubclass(t, oeSelfTest) and t!=oeSelfTest:
                             print(" --", v)
                             for method in dir(t):
-                                if method.startswith("test_") and callable(vars(t)[method]):
+                                if method.startswith("test_") and isinstance(vars(t)[method], collections.Callable):
                                     print(" --  --", method)
 
                 except (AttributeError, ImportError) as e: