我想使用CPython的Lib / importlib / _bootstrap.py文件，但是当我导入模块时，在MacOS上当前的CPython安装（与Homebrew软件包管理器一起安装）中所做的编辑无效。
例如，如果我在$ java -version
java version "1.8.0_211"
Java(TM) SE Runtime Environment (build 1.8.0_211-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode)
$ sbt sbtVersion
[info] Loading global plugins from C:\Users\hce\.sbt\1.0\plugins
[info] Loading project definition from E:\learn\Scala\demo\foo-build\project
[info] Loading settings for project foo-build from build.sbt ...
[info] Set current project to foo-build (in build file:/E:/learn/Scala/demo/foo-build/)
[info] 1.2.8
$ systeminfo.exe | grep '^OS'
OS Name: Microsoft Windows 10 Enterprise LTSC
OS Version: 10.0.17763 N/A Build 17763
OS Manufacturer: Microsoft Corporation
OS Configuration: Standalone Workstation
OS Build Type: Multiprocessor Free
函数主体的开头添加了print("hello")语句：
_init_module_attrs然后导入一个模块：
$ vi /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/_bootstrap.py
什么也没打印。
答案 0 :(得分：0)
<hgroup>
<img src="https://sustainablewestonma.000webhostapp.com/wp-content/uploads/2019/08/cropped-45795044_561214090992995_7744636018275385344_n.jpg" class="header-image" width="25%" alt="sustainablewestonma">
<span class="span"> Educate ● Initiate ● Collaborate</span>
</hgroup>是冻结的模块。要对其进行更新，应重新编译importlib._bootstrap模块：
importlib