python3: Fix compatibility issues

- use absolute path imports to compat python3
- Replace dict.keys() with list(dict.keys()) to get a list on Python
  3. On Python 3, dict.keys() now returns a view.
- Fix iteritems to use items for python3.

Testing:
1. Built packaging with new python3 packaging.
2. Built resulting ISO with new python-fmclient package.
3. Ran "fm" under python3. Verifified that no tracebacks
   happened because it could not find common_wrappers.py.
4. Ran fm alarm-list to verify that output was displayed.
5. Ran fm event-list to display the events.
6. Ran fm alarm-show to show an active alarm.

Story: 2006796
Task: 42257

Signed-off-by: Charles Short <charles.short@windriver.com>
Change-Id: I5081d0685c7ad200076a76b7709cbe4f39c7b456
(cherry picked from commit 5d2dfab5f99fa58683350f068c9eef2b2ada3a67)

python-fmclient/fmclient/fmclient/common/base.py

@@ -102,7 +102,7 @@ class Resource(object):
         self._loaded = loaded
 
     def _add_details(self, info):
-        for (k, v) in info.iteritems():
+        for (k, v) in info.items():
             setattr(self, k, v)
 
     def __getattr__(self, k):
@@ -117,7 +117,7 @@ class Resource(object):
             return self.__dict__[k]
 
     def __repr__(self):
-        reprkeys = sorted(k for k in self.__dict__.keys() if k[0] != '_' and
+        reprkeys = sorted(k for k in list(self.__dict__.keys()) if k[0] != '_' and
                           k != 'manager')
         info = ", ".join("%s=%s" % (k, getattr(self, k)) for k in reprkeys)
         return "<%s %s>" % (self.__class__.__name__, info)

python-fmclient/fmclient/fmclient/common/options.py

@@ -28,7 +28,7 @@ OP_LOOKUP = {'!=': 'ne',
              '<': 'lt',
              '=': 'eq'}
 
-OP_LOOKUP_KEYS = '|'.join(sorted(OP_LOOKUP.keys(), key=len, reverse=True))
+OP_LOOKUP_KEYS = '|'.join(sorted(list(OP_LOOKUP.keys()), key=len, reverse=True))
 OP_SPLIT_RE = re.compile(r'(%s)' % OP_LOOKUP_KEYS)
 
 DATA_TYPE_RE = re.compile(r'^(string|integer|float|datetime|boolean)(::)(.+)$')

python-fmclient/fmclient/fmclient/common/utils.py

@@ -39,8 +39,9 @@ from dateutil import parser
 from prettytable import ALL
 from prettytable import FRAME
 from prettytable import NONE
+from six.moves import zip
 
-import wrapping_formatters
+from fmclient.common import wrapping_formatters
 
 
 SENSITIVE_HEADERS = ('X-Auth-Token', )
@@ -531,7 +532,7 @@ def print_dict(d, dict_property="Property", wrap=0):
     pt = prettytable.PrettyTable([dict_property, 'Value'],
                                  caching=False, print_empty=False)
     pt.align = 'l'
-    for k, v in sorted(d.iteritems()):
+    for k, v in sorted(d.items()):
         v = parse_date(v)
         # convert dict to str to check length
         if isinstance(v, dict):

python-fmclient/fmclient/fmclient/common/wrapping_formatters.py

@@ -25,9 +25,10 @@ import re
 import six
 import textwrap
 
-from cli_no_wrap import is_nowrap_set
-from cli_no_wrap import set_no_wrap
+from fmclient.common.cli_no_wrap import is_nowrap_set
+from fmclient.common.cli_no_wrap import set_no_wrap
 from prettytable import _get_size
+from six.moves import range
 
 UUID_MIN_LENGTH = 36
 
@@ -51,7 +52,7 @@ def get_width(value):
 
 
 def _get_terminal_width():
-    from utils import get_terminal_size
+    from fmclient.common.utils import get_terminal_size
     result = get_terminal_size()[0]
     return result
 
@@ -669,7 +670,7 @@ def build_wrapping_formatters(objs, fields, field_labels, format_spec, add_blank
         else:
             format_spec = build_best_guess_formatters_using_average_widths(objs, fields, field_labels)
 
-    for k in format_spec.keys():
+    for k in list(format_spec.keys()):
         if k not in fields:
             raise Exception("Error in buildWrappingFormatters: format_spec "
                             "specifies a field {} that is not specified "
@@ -717,7 +718,7 @@ def set_no_wrap_on_formatters(no_wrap, formatters):
     global_orig_no_wrap = is_nowrap_set()
     set_no_wrap(no_wrap)
 
-    for k, f in formatters.iteritems():
+    for k, f in formatters.items():
         if WrapperFormatter.is_wrapper_formatter(f):
             formatter_no_wrap_settings[k] = (f.wrapper_formatter.no_wrap, f.wrapper_formatter)
             f.wrapper_formatter.no_wrap = no_wrap
@@ -740,7 +741,7 @@ def unset_no_wrap_on_formatters(orig_no_wrap_settings):
 
     formatters = {}
 
-    for k, v in formatter_no_wrap_settings.iteritems():
+    for k, v in formatter_no_wrap_settings.items():
         formatters[k] = v[1]
         formatters[k].no_wrap = v[0]
 
@@ -751,7 +752,7 @@ def unset_no_wrap_on_formatters(orig_no_wrap_settings):
 
 def _simpleTestHarness(no_wrap):
 
-    import utils
+    from fmclient.common import utils
 
     def testFormatter(event):
         return "*{}".format(event["state"])