Update app.py

app.py

@@ -1,13 +1,37 @@
 
+
 import os
-os.system("pip uninstall -y spaces")
-os.system('pip install spaces==0.12.0')
-os.system("pip uninstall -y gradio")
-os.system("pip uninstall -y inflect")
-os.system("pip uninstall -y pydantic")
-# os.system("pip uninstall -y typer")
-# os.system('pip install typer==0.4.0')
-os.system('pip install pydantic==1.8.2')
+import pkg_resources
+
+def is_installed(package_name, version):
+    try:
+        pkg = pkg_resources.get_distribution(package_name)
+        return pkg.version == version
+    except pkg_resources.DistributionNotFound:
+        return False
+
+@st.cache_resource 
+def install_packages():
+    install_commands = []
+
+    if not is_installed("spaces", "0.12.0"):
+        install_commands.append("pip install spaces==0.12.0")
+    
+    if not is_installed("pydantic", "1.8.2"):
+        install_commands.append("pip install pydantic==1.8.2")
+
+    if install_commands:
+        os.system(" && ".join(install_commands))
+
+# Call the function to install packages if necessary
+install_packages()
+
+# os.system("pip uninstall -y spaces")
+# os.system('pip install spaces==0.12.0')
+# os.system("pip uninstall -y gradio")
+# os.system("pip uninstall -y inflect")
+# os.system("pip uninstall -y pydantic")
+# os.system('pip install pydantic==1.8.2')
 
 import streamlit as st
 import re