def do_OP_SHA256(stack):
    stack.append(hashlib.sha256(stack.pop()).digest())
Creates a user for a test.
dataset/ETHPy150Open richardkiss/pycoin/pycoin/tx/script/microcode.py/do_OP_SHA256--crossover with--dataset/ETHPy150Open reviewboard/reviewboard/reviewboard/webapi/tests/base.py/BaseWebAPITestCase._login_user