It seems that the b3.py module is missing: ``` python test_basenode.py Traceback (most recent call last): File "test_basenode.py", line 6, in <module> import b3 ImportError: No module named b3 ``` <bountysource-plugin> --- Want to back this issue? **[Post a bounty on it!](https://www.bountysource.com/issues/39381458-b3-module-missing?utm_campaign=plugin&utm_content=tracker%2F18331379&utm_medium=issues&utm_source=github)** We accept bounties via [Bountysource](https://www.bountysource.com/?utm_campaign=plugin&utm_content=tracker%2F18331379&utm_medium=issues&utm_source=github). </bountysource-plugin>