app.py

import importlib
import gradio as gr
import os
import sys
import copy
import pathlib

demo_dir = pathlib.Path(__file__).parent / "demos"


all_demos = []
for p in os.listdir("./demos"):
    full_dir = os.path.join(demo_dir, p)
    is_dir = os.path.isdir(full_dir)
    no_requirements = not os.path.exists(os.path.join(full_dir, "requirements.txt"))
    has_app = os.path.exists(os.path.join(full_dir, "run.py"))
    if is_dir and no_requirements and has_app:
        all_demos.append(p)

    to_exclude = ["blocks_demos", "rows_and_columns", "image_classifier_interface_load", "generate_english_german",
                  "all_demos"]
    all_demos = [d for d in all_demos if d not in to_exclude]

demo_module = None
with gr.Blocks() as mega_demo:
    with gr.Tabs():
        for demo_name in all_demos:
            with gr.TabItem(demo_name):
                old_path = copy.deepcopy(sys.path)
                sys.path = [os.path.join(demo_dir, demo_name)] + sys.path
                if demo_module is None:
                    demo_module = importlib.import_module(f"run")
                else:
                    demo_module = importlib.reload(demo_module)
                demo_module.demo
                sys.path = old_path

mega_demo.launch()