Attempted relative import beyond top-level packageCannot import class from module PythonPython folder structure importPython import class from file in another directoryPython import class from parent directoryPython-import class from subdirectoryimporterror: attempted relative import with no known parent packagePython call class from another folderImport in class PythonImport class from another file Python PyCharmPython import class from another filePython import folder of modules關於「Import in class Python」標籤，搜尋引擎有相關的訊息討論：
How to import a class from another file in python? - Stack Overflowstackoverflow.com › questions › how-to-import-a-class-fro...How to Import a Class from a File - Dive into Pythondiveintopython.org › ... › Classes in PythonPython Tutorial for Beginners 9: Import Modules and Exp