Update app.py

app.py

@@ -1,5 +1,5 @@
 import os
-import pip
+import subprocess
 import gradio as gr
 from epub2txt import epub2txt
 from websocket import create_connection
@@ -8,7 +8,7 @@ if not os.path.exists(os.getenv("checkpoint_path")):
     os.system("git clone --recurse-submodules https://github.com/ztxz16/fastllm.git")
     os.system("cd fastllm; mkdir build; cd build; cmake ..; make -j; cd tools; python setup.py install --user --prefix=")
     os.system("wget https://huggingface.co/huangyuyang/chatglm2-6b-int4.flm/resolve/main/chatglm2-6b-int4.flm")
-    os.system("uvicorn api:app --reload")
+    subprocess.Popen("uvicorn api:app --reload")
 
 class GUI:
     def __init__(self, *args, **kwargs):