Fix: Upgrade to Gradio 4.44.1 to fix file upload compatibility

app.py

@@ -69,16 +69,14 @@ def upload_file_analysis(file, api_url, progress=gr.Progress()):
     progress(0, desc="Reading file...")
     
     try:
-        # Read file content based on type
-        if isinstance(file, str):
-            # File path string
-            with open(file, 'r', encoding='utf-8') as f:
-                file_content = f.read()
-            filename = os.path.basename(file)
-        else:
-            # File object
-            file_content = file.decode('utf-8') if isinstance(file, bytes) else file
-            filename = "uploaded_file.txt"
+        # Gradio 4.44+ returns file path as string
+        file_path = file.name if hasattr(file, 'name') else file
+        
+        # Read file content
+        with open(file_path, 'r', encoding='utf-8') as f:
+            file_content = f.read()
+        
+        filename = os.path.basename(file_path)
         
         progress(0.3, desc="Sending file to API...")
         
@@ -115,9 +113,11 @@ def upload_file_analysis(file, api_url, progress=gr.Progress()):
         return f"❌ **Request Error**\n\n{str(e)}"
     except UnicodeDecodeError:
         return "❌ **File Encoding Error**\n\nPlease ensure the file is a valid TXT file with UTF-8 encoding."
+    except FileNotFoundError:
+        return "❌ **File Not Found**\n\nThe uploaded file could not be found. Please try again."
     except Exception as e:
         return f"❌ **Unexpected Error**\n\n{str(e)}"
-
+    
 def format_file_upload_response(result):
     """Format file upload response"""
     output = "---\n\n"
@@ -278,8 +278,8 @@ with gr.Blocks(css=load_css(), theme=gr.themes.Soft(), title="Medical Coding (IC
             
             file_upload = gr.File(
                 label="Upload TXT File",
+                file_count="single",
                 file_types=[".txt"],
-                type="filepath",
                 elem_classes="file-upload"
             )