def upload_file()

in app.py [0:0]

• 18 lines of code
• 5 McCabe index (conditional complexity)

def upload_file():
    """Takes in a file, checks if it is valid,
    and saves it for the next request to the API
    """
    global next_image

    if "file" not in request.files:
        return jsonify(success=False, message="No file part")

    file = request.files["file"]

    if file.filename == "":
        return jsonify(success=False, message="No selected file")
    if file and allowed_file(file.filename):
        filename = secure_filename(file.filename)

        # Read the file stream into a BytesIO object
        file_stream = io.BytesIO(file.read())
        file_stream.seek(0)
        next_image = Image.open(file_stream)

        return jsonify(
            success=True,
            message="File uploaded successfully and added to the conversation",
            filename=filename,
        )
    return jsonify(success=False, message="File type not allowed")