Update app.py

app.py

@@ -9,6 +9,7 @@ from reportlab.lib.pagesizes import letter
 from reportlab.platypus import SimpleDocTemplate, Paragraph
 from reportlab.lib.styles import getSampleStyleSheet
 import shutil
+import os
 
 # Function to save results in a PDF file
 def save_results_to_pdf(results_formatados, intervalo_confiança, valores_finais):