Merge pull request #16 from btubbs/v3

Fail more noisily if no path or file provided to Request.get_file

Author: alexmac05

hellosign_sdk/utils/request.py

@@ -86,6 +86,9 @@ def get_file(self, url, path_or_file=None, headers=None, filename=None):
         '''
         path_or_file = path_or_file or filename
 
+        if not path_or_file:
+            raise ValueError('Must provide path_or_file argument.')
+
         if self.debug:
             print("GET FILE: %s, headers=%s" % (url, headers))