Update app.py

app.py

@@ -1,12 +1,16 @@
 from flask import Flask, send_file, render_template
 import requests
 from io import BytesIO
-import os
 
-app = Flask(__name__)  
-@app.route("/",methods=["GET", "POST"])
-def getInfotoMeasure():
+app = Flask(__name__)
+
+@app.route("/", methods=["GET", "POST"])
+def get_inf_to_measure():
+    """
+    Render the main GUI with the iframe.
+    """
     return render_template("gui.html")
+
 # Route to serve the PDF in iframe
 @app.route('/download-pdf', methods=['GET'])
 def download_pdf():
@@ -20,9 +24,11 @@ def download_pdf():
         dropbox_link = dropbox_link.replace('dl=0', 'dl=1')
     
     # Download the PDF content
-    response = requests.get(dropbox_link)
-    if response.status_code != 200:
-        return "Failed to download the PDF.", 500
+    try:
+        response = requests.get(dropbox_link)
+        response.raise_for_status()  # Ensure the request was successful
+    except requests.exceptions.RequestException as e:
+        return f"Failed to download the PDF: {e}", 500
     
     pdf_content = BytesIO(response.content)
     
@@ -35,7 +41,5 @@ def download_pdf():
     )
 
 if __name__ == '__main__':
+    # Run the application with a specified host and port
     app.run(host='0.0.0.0', port=7860)
-
-# if __name__ == '__main__':
-#     app.run(host='0.0.0.0', port=7860, debug=True)