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Mac(El Captain)にpython3系インストール

Last updated at Posted at 2016-06-05

環境

OS X El Capitan(10.11.5)
HomeBrewインストール済み

pyenvインストール

デフォルトでpython2が入っているが、バージョン切り替えを管理したいのでpyenv(rubyでいうrbenv)をインストール

$ brew install pyenv

パスの設定

$ export PYENV_ROOT="$HOME/.pyenv"
$ export PATH="$PYENV_ROOT/bin:$PATH"
$ eval "$(pyenv init -)"

インストールできるpythonのバージョンを確認

$ pyenv install --list

pythonインストール

最新のpython3.5.1をインストール

$ pyenv install 3.5.1

エラー。。。

Downloading Python-3.5.1.tgz...
-> https://www.python.org/ftp/python/3.5.1/Python-3.5.1.tgz
Installing Python-3.5.1...

BUILD FAILED (OS X 10.11.5 using python-build 20160130)

Inspect or clean up the working tree at /var/folders/cc/yzctrdxs00s81p18dssxqhpw0000gn/T/python-build.20160605231006.7256
Results logged to /var/folders/cc/yzctrdxs00s81p18dssxqhpw0000gn/T/python-build.20160605231006.7256.log

Last 10 log lines:
  File "/private/var/folders/cc/yzctrdxs00s81p18dssxqhpw0000gn/T/python-build.20160605231006.7256/Python-3.5.1/Lib/ensurepip/__main__.py", line 4, in <module>
    ensurepip._main()
  File "/private/var/folders/cc/yzctrdxs00s81p18dssxqhpw0000gn/T/python-build.20160605231006.7256/Python-3.5.1/Lib/ensurepip/__init__.py", line 209, in _main
    default_pip=args.default_pip,
  File "/private/var/folders/cc/yzctrdxs00s81p18dssxqhpw0000gn/T/python-build.20160605231006.7256/Python-3.5.1/Lib/ensurepip/__init__.py", line 116, in bootstrap
    _run_pip(args + [p[0] for p in _PROJECTS], additional_paths)
  File "/private/var/folders/cc/yzctrdxs00s81p18dssxqhpw0000gn/T/python-build.20160605231006.7256/Python-3.5.1/Lib/ensurepip/__init__.py", line 40, in _run_pip
    import pip
zipimport.ZipImportError: can't decompress data; zlib not available
make: *** [install] Error 1

OSアップデートしていると、XCode command line toolsが必要だったらしい(https://github.com/yyuu/pyenv/wiki

$ xcode-select --install
xcode-select: note: install requested for command line developer tools

改めてpython3.5.1をインストール

$ pyenv install 3.5.1

バージョンを確認

$ pyenv versions
* system (set by /Users/32mashamasha/.pyenv/version)
  3.5.1

インストールできた( ´ ▽ ` )ノ

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