From ef98c3893753cc1fce6c420d623b66ca6d523d27 Mon Sep 17 00:00:00 2001
From: Emmanuelle Vargas-Gonzalez <emmanuelle@mitre.org>
Date: Mon, 23 Oct 2017 08:04:18 -0400
Subject: [PATCH] Minor changes

---
 stix2/__init__.py    | 3 ++-
 stix2/common.py      | 5 +++--
 stix2/observables.py | 2 +-
 stix2/sdo.py         | 2 +-
 stix2/utils.py       | 6 +++++-
 5 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/stix2/__init__.py b/stix2/__init__.py
index db14aa7..661c247 100644
--- a/stix2/__init__.py
+++ b/stix2/__init__.py
@@ -22,7 +22,8 @@
 from . import exceptions
 from .common import (TLP_AMBER, TLP_GREEN, TLP_RED, TLP_WHITE, CustomMarking,
                      ExternalReference, GranularMarking, KillChainPhase,
-                     MarkingDefinition, StatementMarking, TLPMarking)
+                     LanguageContent, MarkingDefinition, StatementMarking,
+                     TLPMarking)
 from .core import Bundle, _register_type, parse
 from .environment import Environment, ObjectFactory
 from .markings import (add_markings, clear_markings, get_markings, is_marked,
diff --git a/stix2/common.py b/stix2/common.py
index 0d624ff..fdeef03 100644
--- a/stix2/common.py
+++ b/stix2/common.py
@@ -41,7 +41,7 @@ class GranularMarking(_STIXBase):
     _properties = OrderedDict()
     _properties.update([
         ('lang', StringProperty()),
-        ('marking_ref', ReferenceProperty(type="marking-definition")),  # TODO: In 2.0 is required, not in 2.1
+        ('marking_ref', ReferenceProperty(type="marking-definition")),
         ('selectors', ListProperty(SelectorProperty, required=True)),
     ])
 
@@ -51,6 +51,7 @@ class GranularMarking(_STIXBase):
 
 
 class LanguageContent(_STIXBase):
+
     _type = 'language-content'
     _properties = OrderedDict()
     _properties.update([
@@ -61,7 +62,7 @@ class LanguageContent(_STIXBase):
         ('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
         ('object_ref', ReferenceProperty(required=True)),
         # TODO: 'object_modified' it MUST be an exact match for the modified time of the STIX Object (SRO or SDO) being referenced.
-        ('object_modified', TimestampProperty(required=True)),
+        ('object_modified', TimestampProperty(required=True, precision='millisecond')),
         # TODO: 'contents' https://docs.google.com/document/d/1ShNq4c3e1CkfANmD9O--mdZ5H0O_GLnjN28a_yrEaco/edit#heading=h.cfz5hcantmvx
         ('contents', DictionaryProperty(required=True)),
         ('revoked', BooleanProperty()),
diff --git a/stix2/observables.py b/stix2/observables.py
index 45c3066..aaec2d7 100644
--- a/stix2/observables.py
+++ b/stix2/observables.py
@@ -460,7 +460,7 @@ class SocketExt(_Extension):
             "SOCK_SEQPACKET",
         ])),
         ('socket_descriptor', IntegerProperty()),
-        ('socket_handle', IntegerProperty())
+        ('socket_handle', IntegerProperty()),
     ])
 
 
diff --git a/stix2/sdo.py b/stix2/sdo.py
index d5d093e..da8fa65 100644
--- a/stix2/sdo.py
+++ b/stix2/sdo.py
@@ -281,7 +281,7 @@ class Opinion(STIXDomainObject):
         ('created_by_ref', ReferenceProperty(type="identity")),
         ('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
         ('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
-        ('description', StringProperty),
+        ('description', StringProperty()),
         ('authors', ListProperty(StringProperty)),
         ('object_refs', ListProperty(ReferenceProperty, required=True)),
         ('opinion', EnumProperty(allowed=[
diff --git a/stix2/utils.py b/stix2/utils.py
index 8df4323..32aba72 100644
--- a/stix2/utils.py
+++ b/stix2/utils.py
@@ -87,7 +87,7 @@ def format_datetime(dttm):
     ms = zoned.strftime("%f")
     precision = getattr(dttm, "precision", None)
     if precision == 'second':
-        pass  # Alredy precise to the second
+        pass  # Already precise to the second
     elif precision == "millisecond":
         ts = ts + '.' + ms[:3]
     elif zoned.microsecond > 0:
@@ -191,6 +191,10 @@ def find_property_index(obj, properties, tuple_to_find):
                                                   tuple_to_find)
                         if val is not None:
                             return val
+                    elif isinstance(item, dict) and tuple_to_find[0] in item:
+                        for num, t in enumerate(item.keys(), start=1):
+                            if t == tuple_to_find[0]:
+                                return num
 
 
 def new_version(data, **kwargs):