Unable to get python-matplotlib plots to render as PNG

[deto]

I'm trying to knit an html document with a python code block and the python plots will only render as SVG despite me setting the device as "png". I've tried setting the device both in the chunk header and in the chunk defaults. Is this device setting not applicable to plots coming out of Python and, if so, how is the format for those plots selected? Thanks!

---
title: "Testing R Markdown"
output: html_document
---

```{r setup}
knitr::opts_chunk$set(dev = "png")

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

fig = plt.figure(figsize=(9, 5))
plt.plot(
    [1, 2, 3, 4, 5],
    [4, 2, 5, 2, 4]
)
plt.show()

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[deto]

Nevermind. Issue was with reticulate and upgrading from 1.20 to 1.26 fixed it.

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