gradio requests validators beautifulsoup4 Pillow numpy playwright pandas pyzxing fake-useragent selenium PyPDF webdriver-manager matplotlib qrcode[pil] urllib3 pytesseract aiohttp pytz fitz setuptools httpx python-docx openpyxl chardet mutagen pyzbar frontend opencv-python-headless cleantext nltk spacy textblob cryptography python-jose bcrypt structlog clean-text diskcache tqdm python-dateutil PyPDF2 odfpy