Is there an equivalent of casting a Polars DataFrame to a string like for a Pandas DataFrame using pandasdf.to_csv() without an file path ("If None, the result is returned as a string.")? Similar to this question (How can I cast a Polars DataFrame to string), as a workaround I first cast the Polars DataFrame to a Pandas DataFrame and then use to_csv() without a filename, which results the desiread tab delimited string of the whole Pandas DataFrame: polarsdf.to_pandas().to_csv(sep='\t', index=False) What I ultimately want to achieve with that is to download the Polars DataFrame in a Shiny for Python app (similar to this question: How to add "download button" in shiny for pandas dataframe) This I currently achieve using this code: def download_something(): yield polarsdf.to_pandas().to_csv(sep='\t', index=False) If there is a way of doing this without casting the Polars DataFrame to a string, that would also be a sufficient answer to me. Continue reading...
