如何导入类名python [英] How to import class name python

问题描述

这是我的python文件夹结构(它没有任何python包):

Here is my python folder structure (it does not have any python package):

 folder/
    script1.py
    script2.py

script1具有:

script1 has:

class myclass(object):
    def __init__():
        print("in init")

    def showReport():
        print("in report only function")

script2具有:

script2 has:

from . import myclass

当我运行python -m folder.script2

and when I run python -m folder.script2

我得到/usr/bin/python: cannot import name myclass

如何导入此类，以便可以在script2上从此类调用函数?

How can I import this class so that I can call functions from this class on script2?

推荐答案

您说您确实有一个软件包，但是您仍然必须引用包含类myclass的 module script1 ，所以:

You say you do have a package, but you still have to reference the module script1 that contains your class myclass, so:

from .script1 import myclass

P.S.在Python中，习惯上将驼峰式用作类名，因此MyClass而不是myclass

P.S. In Python it's customary to use camel case for class names, so MyClass not myclass

使用名为package的软件包以及模块module1和module2的工作示例，然后从外部package调用python -m package.module2:

Working example with a package called package and modules module1 and module2, then from outside package, I call python -m package.module2:

➜  ~  tree package

├── __init__.py
├── module1.py
└── module2.py

➜  ~  cat package/module1.py 

class MyClass(object):
    def work(self):
        print 'Working!'

➜  ~  cat package/module2.py 

from .module1 import MyClass

if __name__ == '__main__':
    worker = MyClass()
    worker.work()

➜  ~  python -m package.module2  

Working!

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