noglobal.py

# https://gist.github.com/ax3l/59d92c6e1edefcef85ac2540eb056da3
#   CC-BY-SA 3.0 skyking, Glenn Maynard, Axel Huebl
#   http://stackoverflow.com/a/31047259/2719194
#   http://stackoverflow.com/a/4858123/2719194
import types

def imports():
    for name, val in globals().items():
        # module imports
        if isinstance(val, types.ModuleType):
            yield name, val
        # functions / callables
        if hasattr(val, '__call__'):
            yield name, val

"""
@noglobal functions won't see global variables
unless you explicitly capture them.
This way you avoid accidentally using global data,
which I have done in the past.
"""
noglobal = lambda **keep: lambda fn: \
    types.FunctionType(fn.__code__, dict(imports(), **keep))