$ ipython

In [1]: import inspect
   ...:
   ...: for s in inspect.stack():
   ...:     m = inspect.getmodule(s[0])
   ...:     if m: print(m.__file__)
   ...:
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/core/interactiveshell.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/core/interactiveshell.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/core/interactiveshell.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/core/async_helpers.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/core/interactiveshell.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/core/interactiveshell.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/terminal/ipapp.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/traitlets/config/application.py
/Users/nishimura/.pyenv/versions/anaconda3-2019.03/lib/python3.7/site-packages/IPython/__init__.py