The figure size option in the Python chunk is not taken into account for the first chunk

[R-CoderDotCom]

I am experiencin an issue that might be related to the fix on #1398 available since reticulate 1.31. Now, it seems that fig.size and fig.width are ignored only for the first python chunk.

The following .Rmd will generate the first plot without taking into account the specified sizes:

---
title: "Untitled"
output: html_document
date: "2024-01-17"
---

```{r, echo = FALSE, eval = TRUE}
knitr::opts_chunk$set(fig.height = 4, fig.width = 4)
```

```{python, echo = FALSE}
import matplotlib.pyplot as plt

x = [1, 2, 3]

fig, ax = plt.subplots()
ax.bar(x = x, height = x)
plt.show()
```


```{python, echo = FALSE}
import matplotlib.pyplot as plt

x = [1, 2, 3]

fig, ax = plt.subplots()
ax.bar(x = x, height = x)
plt.show()
```

But if a chunk is added importing matplotlib or seaborn the sizes will be correct:

---
title: "Untitled"
output: html_document
date: "2024-01-17"
---

```{r, echo = FALSE, eval = TRUE}
knitr::opts_chunk$set(fig.height = 4, fig.width = 4)
```

```{python, echo = FALSE}
import matplotlib.pyplot as plt
```

```{python, echo = FALSE}
import matplotlib.pyplot as plt

x = [1, 2, 3]

fig, ax = plt.subplots()
ax.bar(x = x, height = x)
plt.show()
```


```{python, echo = FALSE}
import matplotlib.pyplot as plt

x = [1, 2, 3]

fig, ax = plt.subplots()
ax.bar(x = x, height = x)
plt.show()
```

It seems that this trick only works if matpotlib or seaborn is imported. I have tested that empty chunks doesn't work and printing a value doesn't work.

Reticulate version: 1.34.0
Python version: 3.12.1
rmarkdown version: 2.25
knitr version: 1.45

[t-kalinowski]

Thank you for the detailed bug report! This is fixed now on the development branch.

reticulate::install_github("rstudio/reticulate")