util: Remove python3-six package from dockerfiles

python six package is not used in gem5 as we don't support
python2 anymore

Change-Id: I25a682842ad00c0b5e09c9cb4ea6efac5114da6d
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/57969
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>

site_scons/site_init.py

@@ -63,7 +63,7 @@ The following are steps to compile gem5 in Python 3 environment,
 *Step 1*: ensure Python 3 is installed. On Ubuntu like systems, you can try \
 this command:
 
-    sudo apt-get install python3 python3-six python-is-python3 python3-pydot
+    sudo apt-get install python3 python-is-python3 python3-pydot
 
 To run Python 3 from a container, you can try the Docker files in \
 util/dockerfiles folder.

util/dockerfiles/gcn-gpu/Dockerfile

@@ -29,7 +29,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install build-essential git m4 scons zlib1g zlib1g-dev \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python3-dev python3-six python-is-python3 doxygen libboost-all-dev \
+    python3-dev python-is-python3 doxygen libboost-all-dev \
     libhdf5-serial-dev python3-pydot libpng-dev libelf-dev pkg-config
 
 # Requirements for ROCm

util/dockerfiles/sst-11.1.0/Dockerfile

@@ -31,7 +31,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install build-essential git m4 scons zlib1g zlib1g-dev \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python3-dev python3-six python-is-python3 doxygen libboost-all-dev \
+    python3-dev python-is-python3 doxygen libboost-all-dev \
     libhdf5-serial-dev python3-pydot libpng-dev libelf-dev pkg-config pip \
     python3-venv wget
 

util/dockerfiles/ubuntu-18.04_all-dependencies/Dockerfile

@@ -30,7 +30,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install build-essential git m4 scons zlib1g zlib1g-dev \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python3-dev python3 python3-six doxygen libboost-all-dev \
+    python3-dev python3 doxygen libboost-all-dev \
     libhdf5-serial-dev python3-pydot libpng-dev libelf-dev pkg-config \
     python3-pip python3-venv
 

util/dockerfiles/ubuntu-18.04_clang-version/Dockerfile

@@ -40,7 +40,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install git m4 scons zlib1g zlib1g-dev clang-${version} \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python3-dev python3 python3-six doxygen make
+    python3-dev python3 doxygen make
 
 RUN apt-get --purge -y remove gcc
 

util/dockerfiles/ubuntu-18.04_gcc-version/Dockerfile

@@ -37,7 +37,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install git m4 scons zlib1g zlib1g-dev gcc-multilib \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python3-dev python3 python3-six doxygen wget zip gcc-${version} \
+    python3-dev python3 doxygen wget zip gcc-${version} \
     g++-${version} make
 
 RUN update-alternatives --install \

util/dockerfiles/ubuntu-20.04_all-dependencies/Dockerfile

@@ -31,8 +31,8 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install build-essential git m4 scons zlib1g zlib1g-dev \
     libprotobuf-dev protobuf-compiler libprotoc-dev libgoogle-perftools-dev \
-    python3-dev python3-six python-is-python3 doxygen libboost-all-dev \
+    python3-dev python-is-python3 doxygen libboost-all-dev \
     libhdf5-serial-dev python3-pydot libpng-dev libelf-dev pkg-config pip \
     python3-venv
 
-RUN pip install mypy
+RUN pip install mypy

util/dockerfiles/ubuntu-20.04_clang-version/Dockerfile

@@ -40,7 +40,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install git m4 scons zlib1g zlib1g-dev libprotobuf-dev \
     protobuf-compiler libprotoc-dev libgoogle-perftools-dev python3-dev \
-    python3-six python-is-python3 doxygen libboost-all-dev libhdf5-serial-dev \
+    python-is-python3 doxygen libboost-all-dev libhdf5-serial-dev \
     python3-pydot libpng-dev clang-${version} make
 
 RUN apt-get --purge -y remove gcc

util/dockerfiles/ubuntu-20.04_gcc-version-11/Dockerfile

@@ -35,7 +35,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install git m4 scons zlib1g zlib1g-dev libprotobuf-dev \
     protobuf-compiler libprotoc-dev libgoogle-perftools-dev python3-dev \
-    python3-six python-is-python3 doxygen libboost-all-dev libhdf5-serial-dev \
+    python-is-python3 doxygen libboost-all-dev libhdf5-serial-dev \
     python3-pydot libpng-dev make software-properties-common
 
 RUN add-apt-repository \

util/dockerfiles/ubuntu-20.04_gcc-version/Dockerfile

@@ -37,7 +37,7 @@ RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y install git m4 scons zlib1g zlib1g-dev libprotobuf-dev \
     protobuf-compiler libprotoc-dev libgoogle-perftools-dev python3-dev \
-    python3-six python-is-python3 doxygen libboost-all-dev libhdf5-serial-dev \
+    python-is-python3 doxygen libboost-all-dev libhdf5-serial-dev \
     python3-pydot libpng-dev gcc-${version} g++-${version} make
 
 RUN update-alternatives --install \