remove try except block

app.py

@@ -61,26 +61,24 @@ def showmodal(evt: gr.SelectData):
         itemdic = metadata_dict[evt.value]
 
         tags = itemdic['Hashtags']
-        try:
-            pd.notnull(float(tags))
-        except:
-            if len(tags)>0:
-                tagstr = ''
-                for tag in tags:
-                    tagstr += '<span class="tag">#'+tag+'</span> '
-                    tagsmd = gr.Markdown(tagstr, visible=True)
+        if isinstance(tags, list):
+            if len(tags) > 0:
+                tagstr = ''.join(['<span class="tag">#'+tag+'</span> ' for tag in tags])
+                tagsmd = gr.Markdown(tagstr, visible=True)
 
         titlemd = gr.Markdown('# ['+itemdic['Link']+']('+itemdic['URL']+')',visible=True)
 
         if pd.notnull(itemdic['Authors']):
             authormd = gr.Markdown('## '+itemdic['Authors'],visible=True)
+
         if pd.notnull(itemdic['Abstract']):
             abstractmd = gr.Markdown(itemdic['Abstract'],visible=True)
-        try:
-            pd.notnull(float(itemdic['Screenshots']))
-        except:
-            if len(itemdic['Screenshots'])>0:
-                gallery = gr.Gallery(itemdic['Screenshots'],visible=True)
+
+        screenshots = itemdic['Screenshots']
+        if isinstance(screenshots, list):
+            if len(screenshots) > 0:
+                gallery = gr.Gallery(screenshots, visible=True)
+                
     return [modal, titlemd, authormd, tagsmd, abstractmd, gallery]
 
 with gr.Blocks(title = "Social Impact Measurement V2", css=custom_css) as demo: #theme=gr.themes.Soft(),