From ec003671860130c3b0cf85e6d7a791b2d7e51199 Mon Sep 17 00:00:00 2001
From: Scott Black <sblack@cuahsi.org>
Date: Tue, 16 Nov 2021 12:56:18 -0800
Subject: [PATCH] exclude empty strings from rdf graph parsing

---
 hsmodels/schemas/__init__.py | 4 +++-
 setup.py                     | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/hsmodels/schemas/__init__.py b/hsmodels/schemas/__init__.py
index e04abf5..1112184 100644
--- a/hsmodels/schemas/__init__.py
+++ b/hsmodels/schemas/__init__.py
@@ -184,8 +184,10 @@ def class_rdf_type(schema):
                 elif f.sub_fields:
                     parsed.append([])
             else:
+                parsed_value = str(value.toPython())
                 # primitive value
-                parsed.append(str(value.toPython()))
+                if parsed_value:
+                    parsed.append(parsed_value)
         if len(parsed) > 0:
             if f.sub_fields:
                 # list
diff --git a/setup.py b/setup.py
index f6e5fff..567b8ac 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 
 setup(
     name='hsmodels',
-    version='0.4.1',
+    version='0.4.2',
     packages=find_packages(include=['hsmodels', 'hsmodels.*', 'hsmodels.schemas.*', 'hsmodels.schemas.rdf.*'],
                            exclude=("tests",)),
     install_requires=[