Macでpyenvを使ってPythonをインストールしようとしたときにzlib not availableエラーが発生したときの対策をメモしておきます。使用したMacのバージョンはmacOS Mojave 10.14.2です。
事象
こんなエラーが発生しました。
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| $ pyenv install 3.7.1 | |
| python-build: use openssl from homebrew | |
| python-build: use readline from homebrew | |
| Downloading Python-3.7.1.tar.xz... | |
| -> https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tar.xz | |
| Installing Python-3.7.1... | |
| python-build: use readline from homebrew | |
| BUILD FAILED (OS X 10.14.2 using python-build 20180424) | |
| Inspect or clean up the working tree at /var/folders/1f/ncvbfn9x4t38w69c60wk01q00000gn/T/python-build.20190101065945.83581 | |
| Results logged to /var/folders/1f/ncvbfn9x4t38w69c60wk01q00000gn/T/python-build.20190101065945.83581.log | |
| Last 10 log lines: | |
| File "/private/var/folders/1f/ncvbfn9x4t38w69c60wk01q00000gn/T/python-build.20190101065945.83581/Python-3.7.1/Lib/ensurepip/__main__.py", line 5, in <module> | |
| sys.exit(ensurepip._main()) | |
| File "/private/var/folders/1f/ncvbfn9x4t38w69c60wk01q00000gn/T/python-build.20190101065945.83581/Python-3.7.1/Lib/ensurepip/__init__.py", line 204, in _main | |
| default_pip=args.default_pip, | |
| File "/private/var/folders/1f/ncvbfn9x4t38w69c60wk01q00000gn/T/python-build.20190101065945.83581/Python-3.7.1/Lib/ensurepip/__init__.py", line 117, in _bootstrap | |
| return _run_pip(args + [p[0] for p in _PROJECTS], additional_paths) | |
| File "/private/var/folders/1f/ncvbfn9x4t38w69c60wk01q00000gn/T/python-build.20190101065945.83581/Python-3.7.1/Lib/ensurepip/__init__.py", line 27, in _run_pip | |
| import pip._internal | |
| zipimport.ZipImportError: can't decompress data; zlib not available | |
| make: *** [install] Error 1 |
by 原因
XcodeのCommand Line ToolsにmacOS Mojave 10.14用のmacOS SDKヘッダがインストールされていないからです。
pyenvのissueにも今回のエラーが載っていました。
対策
macOS SDKヘッダを追加する必要があるようです。具体的には、以下コマンドを実行すればOKです。
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| $ sudo installer -pkg /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg -target / |
pyenvのwikiにも対策として上記コマンドが載っています。
改めてpyenvを使ってPythonをインストールすると、うまくいきました！
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| $ pyenv install 3.7.1 | |
| python-build: use openssl from homebrew | |
| python-build: use readline from homebrew | |
| Downloading Python-3.7.1.tar.xz... | |
| -> https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tar.xz | |
| Installing Python-3.7.1... | |
| python-build: use readline from homebrew | |
| Installed Python-3.7.1 to /Users/donchan922/.pyenv/versions/3.7.1 |
まとめ
pyenv installで「zlib not available」エラーが発生したときの対策でした。
OSSライブラリのエラーについては、GitHubのissueやwikiを見るのが信頼性も高く、情報量も多いのでおすすめです。