The code does not work:

bpython version 0.15.dev127 on top of Python 3.4.4 /usr/bin/python3
>>> import Crypto
>>> import importlib
>>> importlib.reload(Crypto)
Traceback (most recent call last):
  File "<bpython-input-4>", line 1, in <module>
    importlib.reload(Crypto)
  File "/home/sebastian/development/bpython/bpython/curtsiesfrontend/sitefix.py", line 42, in reload
    builtins.reload(sys)
AttributeError: 'module' object has no attribute 'reload'

• correctly finds reload on Python 3.4
• adds tests that new reload works
• only does the monkeypatch on Python 2 because sys.stdout isn't replaced on reload(sys) in Python 3

I'd like to merge or close this soon. I'm happy with it now, and although it's a lot of code, the monkeypatching of reload only happens in Python 2 so we're mostly adding cruft to old Python. I don't understand how useful the use case is, see #567 (comment) for rationale.

I'm not sure about this, but if you want it for 0.16, please merge it soon.

It's just adding cruft.