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follow the step-by-step instructions in the post. You need to install Piston by @xeroc

I do the installation on windows of this file: piston-win32-0.4.0-setup.exe?

Try moving crazy.py and crazy.txt into your piston folder and run it from there

In crazy.py change
from piston.steem import Steem
to
from steem.steem import Steem

See if that solves it, if so also change
from piston.steem import BroadcastingError
to
from steem.steem import BroadcastingError

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