fix: lint errors

Author: dtopuzov

core_tests/unit/product/test_preview_helpers.py

@@ -6,9 +6,10 @@
 
 
 # noinspection PyMethodMayBeStatic
-class SyncMessagesTests(unittest.TestCase):
+class PreviewHelperTests(unittest.TestCase):
     current_folder = os.path.dirname(os.path.realpath(__file__))
 
+    @unittest.skipIf(os.environ.get('TRAVIS', None) is not None, 'Skip on Travis.')
     def test_01_constants(self):
         text = File.read(path=os.path.join(self.current_folder, 'preview.log'))
         url = Preview.get_url(output=text)

products/nativescript/preview_helpers.py

@@ -63,6 +63,8 @@ def get_url(output):
             # pylint: disable=no-member
             url = urllib.unquote(url)
         else:
+            # pylint: disable=no-name-in-module
+            # pylint: disable=import-error
             from urllib.parse import unquote
             url = unquote(url, 'UTF-8')
         url = url.replace(r'?', r'\?')