Replace default null variables with empty object to fix 400 error from API when variables are not set explicitly, release 0.23.4

Author: bookernath

bigcommerce/connection.py

@@ -310,7 +310,7 @@ def __init__(self, client_id, store_hash, access_token=None, host='api.bigcommer
 
         self.rate_limit = {}
 
-    def query(self, query, variables=None):
+    def query(self, query, variables={}):
         return self.post(self.graphql_path, dict(query=query, variables=variables))
 
     def introspection_query(self):

setup.py

@@ -7,7 +7,7 @@ def read(fname):
     return open(os.path.join(os.path.dirname(__file__), fname)).read()
 
 
-VERSION = '0.23.3'
+VERSION = '0.23.4'
 
 setup(
     name='bigcommerce',