python包:无法从工作目录导入类

cpuimlearn ,具有以下结构:

$ tree cpuimlearn
cpuimlearn
├── AdaBoostM1.py
├── DECOC.py
├── DOAO.py
├── factory.py
├── FocalBoost.py
├── ImECOC.py
├── __init__.py
└── SAMME.py

0 directories, 8 files

档案 factory.py 实现一个类 FAC 以便:

class FAC:

    def __init__(self):

        pass
    ...

AdaBoostM1.py 按如下方式导入类:

File: AdaBoostM1.py

from factory import FAC
fac = FAC()
....

然而奇怪的是,这些文件无法导入该类。例如:

$ python
Python 3.8.3 (default, Jul  2 2020, 16:21:59) 
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 
>>> 
>>> from cpuimlearn import AdaBoostM1
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "~/gpuimlearn/src/CPU-imLearn/cpuimlearn/AdaBoostM1.py", line 21, in <module>
    from factory import FAC
ModuleNotFoundError: No module named 'factory'
>>> 

从新的历史可以看出 __pycache__ factory.cpython-38.pyc

这很奇怪 factory.py 在目录中可用,并且此实现

$ tree cpuimlearn
cpuimlearn
├── AdaBoostM1.py
├── DECOC.py
├── DOAO.py
├── factory.py
├── FocalBoost.py
├── ImECOC.py
├── __init__.py
├── __pycache__
│   ├── AdaBoostM1.cpython-38.pyc
│   └── __init__.cpython-38.pyc
└── SAMME.py

1 directory, 10 files