how to “reimport” module to python then code be changed after import

Question

I have a foo.py

def foo():
    print \"test\"

In IPython I use:

In [6]:  import foo
In [7]:  foo.foo()
test
         


        

Answer 1

In addition to gnibbler's answer:

This changed in Python 3 to:

>>> import imp
>>> imp.reload(foo)

As @onnodb points out, imp is deprecated in favor of importlib since Python 3.4:

>>> import importlib
>>> importlib.reload(foo)