Python nightly (3.7 ?) remove bare strings.
Python compile step seem to remove base string from AST leading to no outputs in ipython:
In [1]: "1"
In [2]:
Haven't tracked that down yet, I'd like to investigate that before Python 3.7 is out.
On 3.6 that would give
In [1]: "a"
Out[1]: 'a'
In [2]: