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Comment by stilley2 | Hacker News Reader

Thanks for the write-up! Two notes from my experience: pgf output works well with latex as well (although will slowdown compilation), and I recommend not using the pyplot submodule, especially if you'll be running things remotely over ssh and don't have a display

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Would you suggest an alternative to pyplot? What problems does it cause for you?

I had problems using pyplot over ssh because it can assume there's a display and fail when it couldn't find one. Maybe this has changed. I use the OO interface. For example https://matplotlib.org/gallery/api/agg_oo_sgskip.html

Changing the plot backend should fix this.

  import matplotlib
  matplotlib.use('Agg')
  import matplotlib.pyplot as plt

https://stackoverflow.com/questions/2801882/generating-a-png...

I believe Agg is only for bitmap output. While there are probably backends that work with a headless system, I find the OO option much more flexible.

Agg works for all outputs. I use it in combination with OO over ssh all the time.

Indeed, I remember having to switch to Agg for this reason but can't remember why I switched back. Maybe some rendering issues I had with Agg, not sure...

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