Update Dockerfile

.devcontainer/Dockerfile

@@ -4,28 +4,29 @@ FROM python:3.9-slim
 # Avoid warnings by switching to noninteractive
 ENV DEBIAN_FRONTEND=noninteractive
 
-# This Dockerfile adds a non-root 'vscode' user with sudo access. However, for Codespaces, the user
-# name should be 'codespace'. Update USER_UID and USER_GID if you're planning to use this Dockerfile
-# for non-Codespace environments.
-ARG USERNAME=codespace
-ARG USER_UID=1000
-ARG USER_GID=$USER_UID
-
-# Create the user
-RUN groupadd --gid $USER_GID $USERNAME \
-    && useradd --uid $USER_UID --gid $USER_GID -m $USERNAME \
-    # [Optional] Add sudo support. Omit if you don't need to install software after connecting.
-    && apt-get update \
-    && apt-get install -y sudo \
-    && echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
-    && chmod 0440 /etc/sudoers.d/$USERNAME \
+# Install pip
+RUN apt-get update && \
+    apt-get install -y python3-pip && \
     # Clean up
-    && apt-get autoremove -y \
-    && apt-get clean -y \
-    && rm -rf /var/lib/apt/lists/*
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# [Optional] Additional commands to install other dependencies
 
 # Switch back to dialog for any ad-hoc use of apt-get
 ENV DEBIAN_FRONTEND=dialog
 
 # Set the default user
+ARG USERNAME=codespace
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+RUN groupadd --gid $USER_GID $USERNAME && \
+    useradd --uid $USER_UID --gid $USER_GID -m $USERNAME && \
+    apt-get update && \
+    apt-get install -y sudo && \
+    echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME && \
+    chmod 0440 /etc/sudoers.d/$USERNAME && \
+    apt-get autoremove -y && \
+    apt-get clean -y && \
+    rm -rf /var/lib/apt/lists/*
 USER $USERNAME