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Repost from Flow team (question by Ziyuan G.)

I followed Flow's installation steps and everything went well until testing my AIMSUN installation.

AIMSUN was installed correctly, but when I tried python examples/aimsun/sugiyama.py, an error came up saying that ImportError: No module named flow.controllers.

I gave a thought and was wondering if the reason is about python version. For AIMSUN, I have to use python 2.7 in the aimsun_flow conda environment. But previously when I installed Flow, I was using python 3.5 in the flow conda environment. So I tried installing Flow again, but another error came up saying that match for matplotlib==3.0.0.

I realized that for python 2.7, the available version for matplotlib is 1.x.x or 2.x.x, no 3.x.x. So how could I address this issue?

math.husky
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1 Answers1

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Yes you need to have two conda environments. One for Flow (flow) and one for interacting with Aimsun API (aimsun_flow). You only need to install numpy in the the aimsun_flow environment and you don't need to install other packages such as matplotlib.

The error that you are getting might be because you didn't activate the flow environment before running the sugiyama example. Just run source activate flow and then run the example

math.husky
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