Update app.py

app.py

@@ -1,5 +1,5 @@
 import gradio as gr
-import subprocess
+import subprocess,os
 
 
 
@@ -21,15 +21,15 @@ def setup():
     subprocess.run(["unzip", "./master.zip"])
     subprocess.run(["mv", "REAPER-master", "REAPER"])
     subprocess.run(["rm", "./master.zip"])
-    subprocess.run(["cd", "REAPER"])
+    os.chdir('./REAPER')
     subprocess.run(["mkdir", "build"])
-    subprocess.run(["cd", "build"])
+    os.chdir('./build')
     r2 = subprocess.run(["cmake", ".."], capture_output=True, text=True)
     print(r2.stdout)
     r3 = subprocess.run(["make"], capture_output=True, text=True)
     print(r3.stdout)
     
-    subprocess.run(["cd", "../.."])
+    os.chdir('../..')
     r9 = subprocess.run(["ls", "-la"], capture_output=True, text=True)
     print('LS::', r9.stdout)