Unsilenceable Index.format deprecation warning with pandas 2.2

[paulimer]

Using python 3.11, pandas 2.2 and reticulate 1.34 (the last one in conda), each time I send a dataframe to python (or one is returned, I can't tell), the following warning is displayed :
sys:1: FutureWarning: Index.format is deprecated and will be removed in a future version. Convert using index.astype(str) or index.map(formatter) instead.
It is not silenceable with py_suppress_warnings, and did not happen with pandas 2.1.4.

To reproduce the issue the following R code :

library(reticulate)
use_condaenv("warning")
warning <- import("warning")

iris_2 <- warning$test_df(iris)

python code :

import pandas as pd

def test_df(input_df):
    return input_df

and conda environment :

name: warning
channels:
    - bioconda
    - conda-forge
    - defaults
dependencies:
    - python=3.11
    - pandas=2.2
    - r-reticulate

is sufficient.

[t-kalinowski]

Thank you for reporting! This is now fixed in the development version of reticulate.