Normalize Boolean argument values in options to empty string

Fixes #169

Author: JazzCore

pdfkit/pdfkit.py

@@ -238,7 +238,8 @@ def _normalize_options(self, options):
                 for optval in value:
                     yield (normalized_key, optval)
             else:
-                yield (normalized_key, unicode(value) if value else value)
+                normalized_value = '' if isinstance(value,bool) else value
+                yield (normalized_key, unicode(normalized_value) if value else value)
 
     def _normalize_arg(self, arg):
         return arg.lower()

tests/pdfkit-tests.py

@@ -446,5 +446,16 @@ def test_issue_140_empty_cookie_value(self):
 
         self.assertEqual(output2[:4].decode('utf-8'), '%PDF')
 
+    def test_issue_169_quiet_boolean_True(self):
+        options = {
+            'outline': '',
+            'footer-line': None,
+            'quiet': True
+        }
+
+        r = pdfkit.PDFKit('html', 'string', options=options)
+        output = r.to_pdf()
+        self.assertEqual(output[:4].decode('utf-8'), '%PDF')
+
 if __name__ == "__main__":
     unittest.main()