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macOS で pyenv から python を導入する際 binutils が入ってるとコケる

$ pyenv install 3.7.2 python-build: use openssl from homebrew python-build: use readline from homebrew Downloading Python-3.7.2.tar.xz... -> https://www.python.org/ftp/python/3.7.2/Python-3.7.2.tar.xz Installing Python-3.7.2... python-build: use readline from homebrew BUILD FAILED (OS X 10.12.6 using python-build 20180424) Inspect or clean up the working tree at /var/folders/js/twdldwjs53l2bjpvr69prpv477bjpd/T/python-build.20190311004219.80215 Results logged to /var/folders/js/twdldwjs53l2bjpvr69prpv477bjpd/T/python-build.20190311004219.80215.log Last 10 log lines: "__Py_InitializeFromConfig", referenced from: _test_init_from_config in _testembed.o _test_init_dev_mode in _testembed.o _test_init_isolated in _testembed.o ld: symbol(s) not found for architecture x86_64 clang: clangerror: : errorlinker command failed with exit code 1 (use -v to see invocation): linker command failed with exit code 1 (use -v to see invocation) make: *** [Programs/_testembed] Error 1 make: *** Waiting for unfinished jobs.... make: *** [python.exe] Error 1

一旦 binutils を消すみたいな対応をみんなやってるっぽい

$ brew uninstall binutils

Failed install on MacOS Mojave · Issue #1236 · pyenv/pyenv

I was running into this as well, and noticed that my ar was /usr/local/bin/ar rather than the system ar. I ran brew remove binutils and was finally able to run pyenv install 2.7.15 and pyenv install 3.7.1 without problems . I had also upgraded to Xcode 10.1, but I think it was binutils that was giving me trouble. YMMV.

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