import imp

imp.reload(moudle)

>>> import os

>>> os.getcwd()

'C:\\CodingApp\\python'

>>> os.chdir(r'C:\Users\JIANCHEN\PycharmProjects\决策树\src')

>>> os.getcwd()

'C:\\Users\\JIANCHEN\\PycharmProjects\\决策树\\src'

>>> from imp import reload

Warning (from warnings module):

  File "__main__", line 1

DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses

>>> reload(index)

Traceback (most recent call last):

  File "<pyshell#5>", line 1, in <module>

    reload(index)

NameError: name 'index' is not defined

>>> import index

>>> reload(index)

<module 'index' from 'C:\\Users\\JIANCHEN\\PycharmProjects\\决策树\\src\\index.py'>