为什么能够导入不存在的模块？

Question

A core.py file doesn't exist in the file folder named QtRec. But the author uses

QtRec.core._QApp_running = True

How can that work. The example file is on github , created by radjkarl.

Another question is that I can't install the setup.py file. TypeError: 'module' object is not callable. How can I do.

Answer 1

core在__init__.py文件中定义：请参见代码 。