How can i get inspect.getsource to respond to changes in source code?

Question

I make two files:

#test_func.py
def test():
    print('hello')

and

#test_inspect.py
import inspect
import test_func

reload(inspect)
reload(test_func)
reload(inspect)
reload(test_func)

print inspect.getsource(test_func.test)

Running import test_inspect from IPython or other interactive shell prints the right thing:

def test():
    print('hello')

but if I edit and save test_func.py to be:

#test_func.py
def test():
    print('good bye')

I still get:

def test():
    print('hello')

when I run reload(test_inspect) from the shell. How can I convince the inspect module to re-read the source file?

(If you must know why I want to do this, I will elaborate in the comments, but for right now, I'd like to simply know if there is a workaround for this or if there is something fundamental about the inspect module that prevents this)

Answer 1

This should do the trick:

import linecache
linecache.clearcache()