サーバではまだPython2が主流だと思うので、共存させる形でPython3をインストールします。
IUS Community Projectのリポジトリを入れる。
# yum install -y https://centos7.iuscommunity.org/ius-release.rpm
インストール可能なPythonを確認する。
# yum search python
上記だと多すぎるので最新のPython3.6に絞って確認してみる。
# yum search python36 Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: ftp.iij.ad.jp * extras: ftp.iij.ad.jp * ius: mirrors.tongji.edu.cn * updates: ftp.iij.ad.jp ============================================================================================================================ N/S matched: python36 ============================================================================================================================= python36u-debuginfo.x86_64 : Debug information for package python36u python36u-lxml-debuginfo.x86_64 : Debug information for package python36u-lxml python36u-mod_wsgi-debuginfo.x86_64 : Debug information for package python36u-mod_wsgi python36u-psycopg2-debuginfo.x86_64 : Debug information for package python36u-psycopg2 python36u-setproctitle-debuginfo.x86_64 : Debug information for package python36u-setproctitle python36u-test.x86_64 : The self-test suite for the main python36u package uwsgi-plugin-python36u-debuginfo.x86_64 : Debug information for package uwsgi-plugin-python36u python36u.x86_64 : Interpreter of the Python programming language python36u-debug.x86_64 : Debug version of the Python runtime python36u-devel.x86_64 : Libraries and header files needed for Python development python36u-gunicorn.noarch : Python WSGI application server python36u-libs.x86_64 : Python runtime libraries python36u-lxml.x86_64 : XML processing library combining libxml2/libxslt with the ElementTree API python36u-mod_wsgi.x86_64 : A WSGI interface for Python web applications in Apache python36u-pip.noarch : A tool for installing and managing Python packages python36u-psycopg2.x86_64 : A PostgreSQL database adapter for Python python36u-redis.noarch : Python interface to the Redis key-value store python36u-setproctitle.x86_64 : Python module to customize a process title python36u-setuptools.noarch : Easily build and distribute Python packages python36u-tkinter.x86_64 : A GUI toolkit for Python python36u-tools.x86_64 : A collection of tools included with Python including 2to3 and idle uwsgi-plugin-python36u.x86_64 : uWSGI - Plugin for Python support Name and summary matches only, use "search all" for everything.
今回は以下のパッケージをインストール。
# yum install python36u python36u-devel python36u-libs python36u-pip
CentOS7デフォルトのバージョン確認
# python -V Python 2.7.5
インストールしたPython3.6のバージョン確認
# python3.6 -V Python 3.6.4
Python3.xをpython3で実行できるようにシンボリックリンクを作成
# which python3.6 /bin/python3.6 # cd /bin/ # ln -s /bin/python3.6 python3 # which python3 /bin/python3
