> a redundant external dependency Is pip install that hard? Surely any deployed project is already managing a requirements.txt/buildout/setup.py/etc. > means

> a redundant external dependency Is pip install that hard? Surely any deployed project is already managing a requirements.txt/buildout/setup.py/etc. > means you'll eventually get those improvements The C speedup extension for simplejson existed well before it was merged into Python stdlib as "json". Are you so sure you'll eventually get said improvement?