1# --8<-- [start:example] 2import polars as pl 3 4q = ( 5 pl.scan_csv("docs/assets/data/iris.csv") 6 .filter(pl.col("sepal_length") > 5) 7 .group_by("species") 8 .agg(pl.all().sum()) 9) 10 11df = q.collect() 12# --8<-- [end:example] 13 14