Variable do not persist in note book mode, but they persist when markdown is compiled

pythonvariables.Rmd

---
title: "R Notebook"
output:
  html_document:
    df_print: paged
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
library(reticulate)
```

```{python}
x = 1 
```

```{python}
print(x)
```

```{r}
print(py$x)
```