On Windows, open up Anaconda Prompt and type in the following:
pip install json2xml
No complaints from pip for doing this (replace json2xml with your favorite package, I guess). Then, open up Jupyter QTConsole, and try:
import json2xml
The result is an ImportError: No module named 'json2xml'. The package installed (after checking pip list), but nothing recognizes it. There is no system pip (this is Windows, after all); only Anaconda's pip is being used.
What's going on?