Update app.py

app.py

@@ -57,12 +57,17 @@ def search_pubmed(query, retmax):
     handle.close()
     article_list = []
     for article in articles:
+        abstract_text = article['MedlineCitation']['Article'].get('Abstract', {}).get('AbstractText', [])
+        if isinstance(abstract_text, list):
+            # Join the list elements if abstract is a list
+            abstract_text = " ".join(abstract_text)
+
         article_dict = {
             'PMID': str(article['MedlineCitation']['PMID']),
             'Authors': ' '.join([author['LastName'] + ' ' + author.get('Initials', '')
-                                 for author in article['MedlineCitation']['Article']['AuthorList']]),
+                                 for author in article['MedlineCitation']['Article'].get('AuthorList'. [])]),
             'Title': article['MedlineCitation']['Article']['ArticleTitle'],
-            'Abstract': article['MedlineCitation']['Article'].get('Abstract', {}).get('AbstractText', [None])[0]
+            'Abstract': abstract_text,
         }
         article_list.append(article_dict)
     return pd.DataFrame(article_list)