Update app.py

31-40

### Handle File Uploads Correctly in Gradio Spaces

This section ensures robust handling of file uploads in Hugging Face Spaces using Gradio:

- **PDF files**: When a user uploads a PDF, the file object is a `NamedBytesIO` and supports `.read()`. We use `fitz` (PyMuPDF) to extract text from each page.
- **TXT files**: When a user uploads a TXT file, the file object is a `NamedString` (acts like a string, does **not** support `.read()`). We simply convert it to a string.
- **Other file types**: These are ignored and result in an empty input.

This distinction is important because Hugging Face Spaces passes different file-like objects depending on the file type. Attempting to call `.read()` on a `NamedString` (TXT) will raise an `AttributeError`.

**Summary:**
- Use `.read()` only for PDFs.
- Use `str(file)` for TXT files.
- This approach prevents runtime errors and ensures the summarizer works for both file types.

app.py

@@ -28,19 +28,16 @@ def summarize(file, text, style, length):
     text_input = ""
     if file is not None:
         if file.name.endswith(".pdf"):
+            # Only PDFs have .read()
             with fitz.open(stream=file.read(), filetype="pdf") as doc:
                 text_input = " ".join([page.get_text() for page in doc])
         elif file.name.endswith(".txt"):
+            # TXT files are passed as NamedString -> use str(file)
             text_input = str(file)
-            # text_input = file.read().decode("utf-8") <-- Bug
-            # in Hugging Face Spaces, when you use gr.File, text files are passed as 
-            # a NamedString (which acts like a string with a .name attribute), 
-            # while binary files (like PDFs) are passed as a NamedBytesIO 
-            # (which has a .read() method).
-            # ### #
-            
-        elif text:
-            text_input = text  
+        else:
+            text_input = ""
+    elif text:
+        text_input = text
     # If the input text is empty or contains only whitespace, 
     # return early with a user message and placeholder values.
     if not text_input.strip():