update python base on ubuntu 16.04

Change-Id: I174d644ab830cbd894f5e82dd61aaccaa1e1c3ae

python3/Dockerfile

@@ -4,7 +4,13 @@
 # PLEASE DO NOT EDIT IT DIRECTLY.
 #
 
-FROM buildpack-deps:stretch
+FROM ubuntu:16.04
+MAINTAINER xt
+
+COPY sources.list /etc/apt/sources.list
+COPY python-3.7.0.tar.xz ./python.tar.xz
+COPY python-3.7.0.tar.xz.asc ./python.tar.xz.asc
+COPY get-pip.py ./get-pip.py
 
 # ensure local python is preferred over distribution python
 ENV PATH /usr/local/bin:$PATH
@@ -15,6 +21,9 @@ ENV LANG C.UTF-8
 
 # extra dependencies (over what buildpack-deps already includes)
 RUN apt-get update && apt-get install -y --no-install-recommends \
+		build-essential \
+                libssl-dev \
+		libffi-dev \
 		tk-dev \
 		uuid-dev \
 	&& rm -rf /var/lib/apt/lists/*
@@ -24,11 +33,7 @@ ENV PYTHON_VERSION 3.7.0
 
 RUN set -ex \
 	\
-	&& wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \
-	&& wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \
 	&& export GNUPGHOME="$(mktemp -d)" \
-	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \
-	&& gpg --batch --verify python.tar.xz.asc python.tar.xz \
 	&& { command -v gpgconf > /dev/null && gpgconf --kill all || :; } \
 	&& rm -rf "$GNUPGHOME" python.tar.xz.asc \
 	&& mkdir -p /usr/src/python \
@@ -69,9 +74,6 @@ RUN cd /usr/local/bin \
 ENV PYTHON_PIP_VERSION 18.0
 
 RUN set -ex; \
-	\
-	wget -O get-pip.py 'https://bootstrap.pypa.io/get-pip.py'; \
-	\
 	python get-pip.py \
 		--disable-pip-version-check \
 		--no-cache-dir \

python3/python-3.7.0.tar.xz.asc

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python3/sources.list

+# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted
+deb-src http://archive.ubuntu.com/ubuntu xenial main restricted #Added by software-properties
+deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted
+deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted multiverse universe #Added by software-properties
+deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted
+deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted multiverse universe #Added by software-properties
+deb http://mirrors.aliyun.com/ubuntu/ xenial universe
+deb http://mirrors.aliyun.com/ubuntu/ xenial-updates universe
+deb http://mirrors.aliyun.com/ubuntu/ xenial multiverse
+deb http://mirrors.aliyun.com/ubuntu/ xenial-updates multiverse
+deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse
+deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse #Added by software-properties
+deb http://archive.canonical.com/ubuntu xenial partner
+deb-src http://archive.canonical.com/ubuntu xenial partner
+deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted
+deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted multiverse universe #Added by software-properties
+deb http://mirrors.aliyun.com/ubuntu/ xenial-security universe
+deb http://mirrors.aliyun.com/ubuntu/ xenial-security multiverse
+