(#871) write traceback to sys.stderr
(#871) write traceback to sys.stderr

Problem: traceback.print_exc uses a fixed sys.stderr
Solution: use sys.stderr as it is when the call happens
More references: https://github.com/python/cpython/blob/bb8b1cb6af830b40f9be398d1e1bf8bdca772140/Lib/traceback.py#L97
kikocorreoso/brython,brython-dev/brython,kikocorreoso/brython,brython-dev/brython,kikocorreoso/brython,brython-dev/brython