API review: use relative imports in avocado.utils modules

It was mentioned that we should think of avocado.utils as a subproject
that happens to live in the same source tree. So, it should not make
use of any avocado module. If that's the case, maybe we don't want to
keep referencing 'avocado.utils' in the utils module themselves.

This is in accordance with PEP-0328[1]

[1] - https://www.python.org/dev/peps/pep-0328/Signed-off-by: NCleber Rosa <crosa@redhat.com>

avocado/utils/build.py

@@ -14,7 +14,7 @@
 
 import os
 
-import process
+from . import process
 
 
 def make(path, make='make', env=None, extra_args='', ignore_status=False, allow_output_check='none'):

avocado/utils/download.py

@@ -23,7 +23,7 @@ import socket
 import shutil
 import urllib2
 
-from avocado.utils import aurl
+from . import aurl
 
 
 log = logging.getLogger('avocado.test')

avocado/utils/gdb.py

@@ -30,8 +30,8 @@ try:
 except ImportError:
     import subprocess
 
-from avocado.utils import network
-from avocado.utils.external import gdbmi_parser
+from . import network
+from .external import gdbmi_parser
 
 GDB_PROMPT = '(gdb)'
 GDB_EXIT = '^exit'

avocado/utils/genio.py

@@ -20,7 +20,7 @@ import logging
 import os
 import time
 
-from avocado.utils import path as utils_path
+from . import path as utils_path
 
 
 log = logging.getLogger('avocado.test')

avocado/utils/kernel_build.py

@@ -18,7 +18,7 @@ import os
 import logging
 import shutil
 
-from avocado.utils import download, archive, build
+from . import download, archive, build
 
 
 log = logging.getLogger('avocado.test')

avocado/utils/memory.py

@@ -22,7 +22,7 @@ import glob
 import math
 import logging
 
-from avocado.utils import process
+from . import process
 
 
 # Returns total memory in kb

avocado/utils/path.py

@@ -19,7 +19,7 @@ Avocado path related functions.
 import os
 import stat
 
-from avocado.utils import aurl
+from . import aurl
 
 
 PY_EXTENSIONS = ['.py']

avocado/utils/process.py

@@ -34,8 +34,9 @@ except ImportError:
     import subprocess
     SUBPROCESS32_SUPPORT = False
 
+from . import gdb
+
 from avocado import runtime
-from avocado.utils import gdb
 from avocado.core import exceptions
 
 log = logging.getLogger('avocado.test')

avocado/utils/remote.py

@@ -21,7 +21,7 @@ import logging
 import time
 
 from avocado.core import output
-from avocado.utils import process
+from . import process
 
 
 LOG = logging.getLogger('avocado.test')

avocado/utils/script.py

@@ -20,7 +20,7 @@ import os
 import tempfile
 import shutil
 
-from avocado.utils import path as utils_path
+from . import path as utils_path
 
 
 class Script(object):

avocado/utils/software_manager.py

@@ -49,10 +49,10 @@ except ImportError:
 else:
     HAS_YUM_MODULE = True
 
-from avocado.utils import process
-from avocado.utils import data_factory
-from avocado.utils import distro
-from avocado.utils import path as utils_path
+from . import process
+from . import data_factory
+from . import distro
+from . import path as utils_path
 
 log = logging.getLogger('avocado.test')
 

avocado/utils/virt.py

@@ -19,7 +19,7 @@ Module to provide classes for Virtual Machines.
 import logging
 from xml.dom import minidom
 
-from avocado.utils import remote
+from . import remote
 
 LOG = logging.getLogger('avocado.test')