我的__init__.py里面要写啥？

我运行时报错这个

D:\ANACONDA\envs\minist_testdemo\python.exe C:/Users/wangs/PycharmProjects/minist_testdemo/mnist/regression.py

Traceback (most recent call last):

  File "C:/Users/wangs/PycharmProjects/minist_testdemo/mnist/regression.py", line 3, in <module>

    import input_data

  File "C:\Users\wangs\PycharmProjects\minist_testdemo\mnist\input_data.py", line 9, in <module>

    import numpy

ModuleNotFoundError: No module named 'numpy'

Process finished with exit code 1