The following used to work: pl.concat_arr(pl.col("X[m]", "Y[m]", "Z[m]")).alias("Antenna_position[m]"), but now (polars 1.31.0) I get an error: Traceback (most recent call last): File "/usr/pueoBuilder/components/pueoAnalysisTools/SharedUtils/antenna_attributes.py", line 307, in <module> generate_dataframe_from_pueodata_qrh() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/pueoBuilder/components/pueoAnalysisTools/SharedUtils/antenna_attributes.py", line 186, in generate_dataframe_from_pueodata_qrh ).collect() ~~~~~~~^^ File "/usr/local/lib64/python3.13/site-packages/polars/_utils/deprecation.py", line 97, in wrapper return function(*args, **kwargs) File "/usr/local/lib64/python3.13/site-packages/polars/lazyframe/opt_flags.py", line 330, in wrapper return function(*args, **kwargs) File "/usr/local/lib64/python3.13/site-packages/polars/lazyframe/frame.py", line 2332, in collect return wrap_df(ldf.collect(engine, callback)) ~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ polars.exceptions.DuplicateError: the name 'Antenna_position[m]' is duplicate It's possible that multiple expressions are returning the same default column name. If this is the case, try renaming the columns with `.alias("new_name")` to avoid duplicate column names. The solution is simple: change the line to pl.concat_arr("X[m]", "Y[m]", "Z[m]").alias("Antenna_position[m]"), or use List instead of Array pl.concat_list(pl.col("X[m]", "Y[m]", "Z[m]")).alias("Antenna_position[m]"), Polars's documentation recommends using Array over List for performance, so I guess the first workaround would probably be more ideal. It looks like Polars Array's concat_arr is still unstable, but does anyone know why this feature got removed? Continue reading...
