blocks|key|738474|text|跟随PyEnv+BUILD+FAILED+installing+Python+on+MacOS|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|738475|以下命令成功安装了Python3.8.0b4：|738476|SDKROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk+MACOSX_DEPLOYMENT_TARGET=10.14+pyenv+install+3.8.0b4|code-block|syntax|javascript|738477|见下文产出：|738478|​|738479|📷|atomic|738480|738481|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/51551557/pyenv-build-failed-installing-python-on-macos|1|IMAGE|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/de786a99be9f2a305be73e3b8d8ab544.png|imageAlt^0|2|19|0|0|0|0|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@$A|17|B|18|1|19]]|C|$]]|$1|D|3|E|5|6|7|1A|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|1B|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|1C|8|@]|9|@]|C|$]]|$1|M|3|N|5|6|7|1D|8|@]|9|@]|C|$]]|$1|O|3|P|5|Q|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|R|3|N|5|6|7|1I|8|@]|9|@]|C|$]]|$1|S|3|-4|5|6|7|1J|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]|10|$5|11|W|12|C|$13|14|15|-4]]]]

Following <a href="https://stackoverflow.com/questions/51551557/pyenv-build-failed-installing-python-on-macos">PyEnv BUILD FAILED installing Python on MacOS</a>

The below command successfully installed Python 3.8.0b4:

<pre class="lang-sh prettyprint-override"><code>SDKROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk MACOSX_DEPLOYMENT_TARGET=10.14 pyenv install 3.8.0b4
</code></pre>

See output below:

<a href="https://i.stack.imgur.com/4aimD.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4aimD.png" alt="enter image description here"></a>

blocks|key|738496|text|您在描述中所写的内容与您在shell中键入的内容不同。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|738497|根据屏幕截图，pyenv在安装python之前还没有初始化，这意味着命令pyenv没有添加到PATH中，子命令也不可用。|offset|length|style|CODE|738498|最好将init脚本写入bash配置文件，如~/.bashrc|738499|export+PATH="$HOME/.pyenv/bin:$PATH"

if+command+-v+pyenv+&>/dev/null;+then
++eval+"$(pyenv+init+-)"
fi
if+command+-v+pyenv-virtualenv+&>/dev/null;+then
++eval+"$(pyenv+virtualenv-init+-)"
fi|code-block|syntax|javascript|738500|之后，启动一个新的shell并执行Python安装。|738501|您可以在项目的README.md上查看GitHub上的回购以获得更多信息。|738502|entityMap^0|0|7|5|10|5|1A|4|0|L|9|0|0|0|7|9|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]|$D|Y|E|Z|F|G]|$D|10|E|11|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|12|8|@$D|13|E|14|F|G]]|9|@]|A|$]]|$1|J|3|K|5|L|7|15|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|17|8|@$D|18|E|19|F|G]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|T|$]]

What you wrote in the description was different with what you typed in the shell.

According to the screenshot, <code>pyenv</code> was not initialized yet before python installation, which means command <code>pyenv</code> was not added into <code>PATH</code> and the sub-commands were not available either. 

You'd better write the init scripts into your bash configuration file, like <code>~/.bashrc</code>

<pre class="lang-sh prettyprint-override"><code>export PATH="$HOME/.pyenv/bin:$PATH"

if command -v pyenv &amp;&gt;/dev/null; then
 eval "$(pyenv init -)"
fi
if command -v pyenv-virtualenv &amp;&gt;/dev/null; then
 eval "$(pyenv virtualenv-init -)"
fi
</code></pre>

After that, start a new shell and do the Python installation.

You can check the <code>README.md</code> at the project's repo on GitHub for more info.

I am trying to install the latest beta version of the new Python 3.8.
My laptop is running macOS Mojave.
I am following the tutorial on RealPython:
<a href="https://realpython.com/intro-to-pyenv/" rel="nofollow noreferrer">https://realpython.com/intro-to-pyenv/</a>

and have skimmed through similar questions, e.g. <a href="https://stackoverflow.com/questions/57194588/pyenv-3-6-5-build-failed-macos-mojave-10-14-5">pyenv 3.6.5 BUILD FAILED macOS Mojave 10.14.5</a>

First I run the commands:

<pre class="lang-sh prettyprint-override"><code>brew install openssl readline sqlite3 xz zlib
sudo installer -pkg /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg -target /
curl https://pyenv.run | bash
export PATH="$HOME/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
$ exec "$SHELL"
pyenv install --list | grep " 3\.[8]"
</code></pre>

Which run successfully and shows that Python 3.8.0b4 is the latest release, which I wish to install;

When attempting to install with:

<pre class="lang-sh prettyprint-override"><code>pyenv install 3.8.0b4
</code></pre>

The result reads:

<pre class="lang-sh prettyprint-override"><code>-bash: pyenv: command not found
</code></pre>

pyenv is installed however. Any idea about why the command isn't found?

(See the BASH terminal below).

<a href="https://i.stack.imgur.com/ryoRS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ryoRS.png" alt="enter image description here"></a>

pyenv install 3.8.0b4 on macOS Mojave

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在尝试安装新Python3.8的最新测试版。我的笔记本电脑正在运行macOS Mojave。我正在学习关于RealPython：的教程并略读了类似的问题，例如首先，我运行命令：brew install openssl readline sqlite3 xz zlibsudo installer -pkg /Libr...

问在macOS Mojave上安装3.8.0b4
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