How do I set a default line size in plotnine?

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I've been using plotnine to plot in Python and I would like to set up a default line size for all plots. Unfortunately, changing line inside my custom theme only affects background elements.

In R using ggplot it is possible to run update_geom_defaults("line", list(size = desired size)) to get the desired behaviour. Is there such an alternative for plotnine?

plotnine plot python
1 Answers

I've finally found the solution to this. As indicated by the Plotnine API all geoms have an attribute called DEFAULT_AES containing the default values used for plotting. New default values can be set by changing the values of this dictionary. For instance, to set a new line size one can run:

import plotnine as p9
p9.geoms.geom_line.DEFAULT_AES['size']=desired_size
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