Update file Dockerfile

Dockerfile

@@ -5,7 +5,7 @@ SHELL ["/bin/bash", "-c"]
 # Install prerequisites
 
 RUN apt update -y && \
-    apt install -y curl git perl python python3 python3-pip gengetopt \
+    apt install -y curl git perl python2 python3 python3-pip gengetopt \
     make autoconf g++ flex bison ccache libgoogle-perftools-dev numactl \
     perl-doc libfl2 libfl-dev zlib1g zlib1g-dev gawk libncurses5 help2man