Added several test files and the file with the class that

they import (browser_test.py)

1 files changed, 4 insertions, 2 deletions

diff --git a/wqflask/wqflask/show_trait/show_trait.py b/wqflask/wqflask/show_trait/show_trait.py
index 7397c776..b0c96c56 100755
--- a/wqflask/wqflask/show_trait/show_trait.py
+++ b/wqflask/wqflask/show_trait/show_trait.py
@@ -1204,10 +1204,12 @@ class ShowTrait(object):
                 other_sample_names.append(sample)
 
         if other_sample_names:
-            parent_f1_samples = self.dataset.group.parlist + self.dataset.group.f1list
+            if self.dataset.group.parlist and self.dataset.group.f1list:
+                parent_f1_samples = self.dataset.group.parlist + self.dataset.group.f1list
 
             other_sample_names.sort() #Sort other samples
-            other_sample_names = parent_f1_samples + other_sample_names
+            if parent_f1_samples:
+                other_sample_names = parent_f1_samples + other_sample_names
 
             other_samples = SampleList(dataset=self.dataset,
                                         sample_names=other_sample_names,