Update Dockerfile

Dockerfile

@@ -1,5 +1,5 @@
-# Use Ubuntu as the base image
-FROM ubuntu:latest
+# Use Python 3.9 as the base image
+FROM python:3.9
 
 # Set environment variables
 ENV DEBIAN_FRONTEND=noninteractive
@@ -15,12 +15,6 @@ RUN apt-get update && \
     g++ \
     gcc
 
-# Install Python 3.11
-RUN sudo apt install software-properties-common -y && \
-    sudo add-apt-repository ppa:deadsnakes/ppa && \
-    sudo apt-get update -y && \
-    sudo apt-get install -y python3.11 
-
 # Install code-server
 RUN curl -fsSL https://code-server.dev/install.sh | sh
 
@@ -36,3 +30,5 @@ USER coder
 
 # Start code-server
 CMD ["code-server", "--bind-addr", "0.0.0.0:7860", "--auth", "none"]
+
+# End of Dockerfile