Update app.py

app.py

@@ -77,14 +77,14 @@ def process_text(inputs):
 
 
 def save_as_pdf(text):
-    # create temporary file to save HTML
+    # create a temporary HTML file
     with tempfile.NamedTemporaryFile(delete=False, suffix=".html") as tmpfile:
-        tmpfile.write(text.encode("utf-8"))
+        tmpfile.write(text.encode())
         tmpfile.flush()
 
-        # convert HTML to PDF using WeasyPrint
+        # generate a PDF from the HTML
         pdf_file = BytesIO()
-        HTML(filename=tmpfile.name).write_pdf(pdf_file)
+        weasyprint.HTML(tmpfile.name).write_pdf(pdf_file)
 
         # encode the PDF to base64
         b64 = base64.b64encode(pdf_file.getvalue()).decode('utf-8')