Remove Python 3.6 Docker build support

- Remove python-3.6-jdk-* build targets from docker/Makefile
- Remove Python 3.6 special build-from-source handling in install_python_version
- Update pip installation conditional to exclude Python 3.6
- Update test-requirements.txt

Author: valenad1

docker/Makefile

@@ -71,22 +71,6 @@ ifeq ($(shell echo $(PUSH) | tr [:upper:] [:lower:] ),true)
 	docker push 353750902984.dkr.ecr.us-east-1.amazonaws.com/h2o-3/dev-r-base:$(VERSION)
 endif
 
-ifneq ($(CI), 1)
-dev-python-3.6-jdk-%: dev-python-3.6
-endif
-dev-python-3.6-jdk-%:
-	docker build -t 353750902984.dkr.ecr.us-east-1.amazonaws.com/h2o-3/dev-python-3.6-jdk-$*:$(VERSION) \
-		$(NO_CACHE) \
-		-f jenkins-images/Dockerfile-jdk-others \
-		--build-arg FROM_VERSION=$(VERSION) \
-		--build-arg FROM_IMAGE=353750902984.dkr.ecr.us-east-1.amazonaws.com/h2o-3/dev-python-3.6 \
-		--build-arg INSTALL_JAVA_VERSION=$* \
-		--build-arg H2O_BRANCH=$(H2O_BRANCH) \
-		.
-ifeq ($(shell echo $(PUSH) | tr [:upper:] [:lower:] ),true)
-	docker push 353750902984.dkr.ecr.us-east-1.amazonaws.com/h2o-3/dev-python-3.6-jdk-$*:$(VERSION)
-endif
-
 ifneq ($(CI), 1)
 dev-python-3.7-jdk-%: dev-python-3.7
 endif

docker/scripts/install_python_version

@@ -34,31 +34,15 @@ for python_version in "${array[@]}"; do
   if [[ ${major} == "2" ]] ; then pkg_suffix="" ; else pkg_suffix=${major} ; fi
 
   apt-get update
-  if [[ ${python_version} == "3.6" ]]
-  then
-    DEBIAN_FRONTEND=noninteractive apt-get install -y build-essential checkinstall libreadline-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev clang
-    pushd /usr/src
-    wget -nv https://www.python.org/ftp/python/3.6.15/Python-3.6.15.tar.xz
-    echo "bc04aa6c2a1a172a35012abd668538cd Python-3.6.15.tar.xz" > Python-3.6.15.tar.xz.md5
-    md5sum -c Python-3.6.15.tar.xz.md5 || exit 1  # unexpected checksum
-    tar xf Python-3.6.15.tar.xz
-    cd Python-3.6.15
-    export CC="clang"  # needed to avoid SegFault during install
-    ./configure
-    make
-    make install
-    popd
-  else
-    DEBIAN_FRONTEND=noninteractive apt-get -y install python${python_version} python${python_version}-dev python${pkg_suffix}-setuptools
-    if [[ ${major} -ge 3 && ${minor} -ge 7 ]]; then
-        DEBIAN_FRONTEND=noninteractive apt-get -y install python${python_version}-distutils
-    fi
+  DEBIAN_FRONTEND=noninteractive apt-get -y install python${python_version} python${python_version}-dev python${pkg_suffix}-setuptools
+  if [[ ${major} -ge 3 && ${minor} -ge 7 ]]; then
+      DEBIAN_FRONTEND=noninteractive apt-get -y install python${python_version}-distutils
   fi
   apt-get clean
   rm -rf /var/cache/apt/*
 
   echo "###### Installing pip for Python ${python_version} ######"
-  if [[ ${major} == "2" ]] || [[ ${python_version} == "3.5" ]] || [[ ${python_version} == "3.6" ]] || [[ ${python_version} == "3.7" ]]
+  if [[ ${major} == "2" ]] || [[ ${python_version} == "3.5" ]] || [[ ${python_version} == "3.7" ]]
   then
     curl https://bootstrap.pypa.io/pip/${python_version}/get-pip.py --output get-pip.py
     python${python_version} get-pip.py

h2o-py/test-requirements.txt

@@ -1,28 +1,23 @@
 requests==2.27.1
 winkerberos >= 0.5.0; sys.platform == 'win32'
 pykerberos >= 1.1.8, < 2.0.0; sys.platform != 'win32'
-gssapi==1.6.14; python_version == '3.6'
-gssapi==1.8.3; python_version > '3.6'
+gssapi==1.8.3
 tabulate==0.8.10
 slam==0.6.0
 cython==0.29.34
 twine==1.10.0
 urllib3==1.26.5
 grip==4.4.0
-wheel<=0.42.0; python_version < '3.7'
-wheel==0.42.0; python_version >= '3.7'
+wheel==0.42.0
 numpy<=1.23.5; python_version < '3.8'
 numpy==1.23.5; python_version >= '3.8'
 numpy==1.26.4; python_version == '3.11'
-scipy==1.5.4; python_version == '3.6'
 scipy==1.6.3; python_version == '3.7'
 scipy==1.10.1; python_version > '3.7'
-pandas==0.24.2; python_version == '3.6'
-pandas==1.3.5; python_version > '3.6' and python_version < '3.11'
+pandas==1.3.5; python_version < '3.11'
 pandas==1.5.3; python_version >= '3.11'
-pyarrow==10.0.1; python_version > '3.6'
-statsmodels==0.12.2; python_version == '3.6'
-statsmodels==0.13.5; python_version > '3.6'
+pyarrow==10.0.1
+statsmodels==0.13.5
 patsy==0.5.3
 scikit-learn==0.24.2; python_version <= '3.7'
 scikit-learn==1.2.2; python_version > '3.7'
@@ -48,12 +43,10 @@ polars==0.19.17; python_version > '3.9'
 pyarrow==14.0.1; python_version > '3.9'
 # not directly required, pinned by Snyk to avoid a vulnerability
 pygments==2.15.1; python_version >= '3.7'
-sphinx==3.5.4; python_version >= '3.6' and python_version <= '3.8'
+sphinx==3.5.4; python_version <= '3.8'
 sphinx==6.1.3; python_version > '3.8'
-typing_extensions==4.1.1; python_version < '3.7'
-typing_extensions==4.7.1; python_version >= '3.7' and python_version < '3.8'
+typing_extensions==4.7.1; python_version < '3.8'
 typing_extensions==4.9.0; python_version >= '3.8'
-mypy==0.971; python_version < '3.7'
-mypy==1.4.1; python_version >= '3.7' and python_version < '3.8'
+mypy==1.4.1; python_version < '3.8'
 mypy==1.8.0; python_version >= '3.8'
 future; python_version == '3.11'