CentOS7でpython3をepelから入れる
CentOS7はPython 2.7系が入っており、今からpythonで何かするときに色々と不便です。
これまでpython3系はIUS Community Projectのリポジトリから入れるのが鉄板でしたが、
epelにもpython36が来てたので確認してみました。
(3.4は前からあったけどvenvとか上手く動かなかくて挫折した記憶があります。）
パッケージ情報はこんな感じ。
# yum info python36 読み込んだプラグイン:fastestmirror Loading mirror speeds from cached hostfile * base: mirror.qoxy.com * epel: ftp.jaist.ac.jp * extras: mirror.qoxy.com * ius: ius.mirror.constant.com * updates: mirror.qoxy.com 利用可能なパッケージ 名前 : python36 アーキテクチャー : x86_64 バージョン : 3.6.6 リリース : 1.el7 容量 : 66 k リポジトリー : epel/x86_64 要約 : Interpreter of the Python programming language URL : https://www.python.org/ ライセンス : Python 説明 : Python is an accessible, high-level, dynamically typed, interpreted programming : language, designed with an emphasis on code readability. : It includes an extensive standard library, and has a vast ecosystem of : third-party libraries. : : The python36 package provides the "python3" executable: the reference : interpreter for the Python language, version 3. : The majority of its standard library is provided in the python36-libs package, : which should be installed automatically along with python36. : The remaining parts of the Python standard library are broken out into the : python36-tkinter and python36-test packages, which may need to be installed : separately. : : Documentation for Python is provided in the python36-docs package. : : Packages containing additional libraries for Python are generally named with : the "python36-" prefix.
とりあえずインストール
# yum install python36 python36-devel python36-libs 読み込んだプラグイン:fastestmirror Loading mirror speeds from cached hostfile * base: ftp.riken.jp * epel: ftp.riken.jp * extras: ftp.riken.jp * updates: ftp.riken.jp 依存性の解決をしています --> トランザクションの確認を実行しています。 ... 完了しました! # python36 --version Python 3.6.6
pipを入れてみます。
# python3 -m ensurepip Looking in links: /tmp/tmpy8of2iuk Collecting setuptools Collecting pip Installing collected packages: setuptools, pip Successfully installed pip-10.0.1 setuptools-39.0.1 # pip3 install --upgrade pip Collecting pip Using cached https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3-none-any.whl Installing collected packages: pip Found existing installation: pip 10.0.1 Uninstalling pip-10.0.1: Successfully uninstalled pip-10.0.1 Successfully installed pip-18.0 # pip3 list Package Version ---------- ------- pip 18.0 setuptools 39.0.1
venvも使えました。
# python36 -m venv testenv # source testenv/bin/activate (testenv) # pip -V pip 10.0.1 from /root/testenv/lib64/python3.6/site-packages/pip (python 3.6) (testenv) # pip install --upgrade pip Collecting pip Using cached https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3-none-any.whl Installing collected packages: pip Found existing installation: pip 10.0.1 Uninstalling pip-10.0.1: Successfully uninstalled pip-10.0.1 Successfully installed pip-18.0 (testenv) # pip list Package Version ---------- ------- pip 18.0 setuptools 39.0.1 (testenv) # pip install numpy Collecting numpy Using cached https://files.pythonhosted.org/packages/fe/94/7049fed8373c52839c8cde619acaf2c9b83082b935e5aa8c0fa27a4a8bcc/numpy-1.15.1-cp36-cp36m-manylinux1_x86_64.whl Installing collected packages: numpy Successfully installed numpy-1.15.1 (testenv) # deactivate #
しばらく使ってみようと思います。
2019/05/01 追記 virtualenvwrapperを使う場合はこんな感じ
# pip3 install virtualenvwrapper
cat << EOS >> /etc/profile # for virtualenvwrapper VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3 if [ -f /usr/local/bin/virtualenvwrapper.sh ]; then export WORKON_HOME=$HOME/.virtualenvs source /usr/local/bin/virtualenvwrapper.sh fi EOS
