Update Dockerfile

Dockerfile

@@ -1,32 +1,29 @@
-FROM ubuntu:16.04
+# Use an older Ubuntu version that supports Python 3.4
+FROM ubuntu:14.04
 
-# Install Python 3.4 and basic tools
+# Update package lists and install required dependencies
 RUN apt-get update && apt-get install -y \
     software-properties-common \
+    build-essential \
+    libssl-dev \
+    zlib1g-dev \
+    libncurses5-dev \
+    libgdbm-dev \
+    libnss3-dev \
+    libreadline-dev \
+    libffi-dev \
     wget \
     curl \
-    tar \
-    bash \
-    rsync \
-    gcc \
-    libfreetype6-dev \
-    libhdf5-dev \
-    libpng-dev \
-    libzmq5-dev \
-    unzip \
-    pkg-config \
-    graphviz \
-    openjdk-8-jdk \
-    python3.4 \
-    python3.4-dev \
-    python3-pip \
-    ant \
-    ca-certificates \
-    && apt-get clean \
-    && update-ca-certificates -f
-
-# Install a pip version compatible with Python 3.4
-RUN python3.4 -m pip install --upgrade "pip<21.0"
+    && rm -rf /var/lib/apt/lists/*
+
+# Add deadsnakes PPA for Python 3.4
+RUN add-apt-repository ppa:deadsnakes/ppa && apt-get update
+
+# Install Python 3.4
+RUN apt-get install -y python3.4 python3.4-dev python3.4-venv
+
+# Set Python 3.4 as default (optional)
+RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.4 1
 
 # Copy requirements file
 COPY requirements.txt /tmp/requirements.txt