Using multiprocessing to speed up the network analysis procedures with pandana

[Linhkust]

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Description of the bug

Hello, I am wondering how I can speed up the network analysis procedures with pandana?

I wrote the codes to calculate the calculate the distance between 1000 points and some fixed points one by one with pandana.
I tried to use multiprocessing package to run the process in multiple workers but it failed. Is it possible to use pandana and multiprocessing to calculate multiple distances at the same time?

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