Update app.py

app.py

@@ -594,29 +594,33 @@ def analyze_sequence_comparison(file1, file2, fasta1="", fasta2=""):
     substantial_diffs = np.abs(shap_diff) > threshold
     frac_different = np.mean(substantial_diffs)
     
-    # Generate comparison text
-    # Format the numbers without using f-string with `:,`
+    # Extract classifications safely without using f-strings with backslashes
+    classification1 = results1[0].split('Classification: ')[1].split('\n')[0].strip()
+    classification2 = results2[0].split('Classification: ')[1].split('\n')[0].strip()
+    
+    # Format numbers
     len1_formatted = "{:,}".format(len(shap1))
     len2_formatted = "{:,}".format(len(shap2))
     frac_formatted = "{:.2%}".format(frac_different)
     
+    # Build comparison text without f-strings containing backslashes
     comparison_text = (
-        f"Sequence Comparison Results:\n"
+        "Sequence Comparison Results:\n"
         f"Sequence 1: {results1[4]}\n"
         f"Length: {len1_formatted} bases\n"
-        f"Classification: {results1[0].split('Classification: ')[1].split('\\n')[0]}\n\n"
+        f"Classification: {classification1}\n\n"
         f"Sequence 2: {results2[4]}\n"
         f"Length: {len2_formatted} bases\n"
-        f"Classification: {results2[0].split('Classification: ')[1].split('\\n')[0]}\n\n"
-        f"Comparison Statistics:\n"
+        f"Classification: {classification2}\n\n"
+        "Comparison Statistics:\n"
         f"Average SHAP difference: {avg_diff:.4f}\n"
         f"Standard deviation: {std_diff:.4f}\n"
         f"Max difference: {max_diff:.4f} (Seq2 more human-like)\n"
         f"Min difference: {min_diff:.4f} (Seq1 more human-like)\n"
         f"Fraction of positions with substantial differences: {frac_formatted}\n\n"
-        f"Interpretation:\n"
-        f"Positive values (red) indicate regions where Sequence 2 is more 'human-like'\n"
-        f"Negative values (blue) indicate regions where Sequence 1 is more 'human-like'"
+        "Interpretation:\n"
+        "Positive values (red) indicate regions where Sequence 2 is more 'human-like'\n"
+        "Negative values (blue) indicate regions where Sequence 1 is more 'human-like'"
     )
     
     # Create comparison heatmap