Polars for Python: How to get rid of "Ensure you pass a path to the file instead of a python file object" warning when reading to a dataframe?

The statement

• I’m reading data sets using Polars.read_csv() method via a Python file handler:

 with gzip.open(os.path.join(getParameters()['rdir'], dataset)) as compressed_file:
    df = pl.read_csv(compressed_file, sep = 't', ignore_errors=True)

• A performance warning keeps popping up:

Polars found a filename. Ensure you pass a path to the file instead of a python file object when possible for best performance.

Possible solutions

• I already tried Python warning suppression, but it seems Polars literally just prints out this statement without any default warning associated.
• Another possibility would be to read using non-handler methods?

Any ideas on how to get rid of this annoying message will be highly appreciated.