I need to drop the first column in a polars DataFrame. I looked here and it suggests: result = df.select([col for idx, col in enumerate(df.columns) if idx != 1]) It looks long and clumsy for such a simple task? I also tried: df.select(pl.exclude(pl.nth(1))) but that errored out --------------------------------------------------------------------------- TypeError Traceback (most recent call last) Cell In[20], line 1 ----> 1 df.select(pl.exclude(pl.nth(1))) File \.venv\Lib\site-packages\polars\functions\lazy.py:1855, in exclude(columns, *more_columns) 1785 def exclude( 1786 columns: str | PolarsDataType | Collection[str] | Collection[PolarsDataType], 1787 *more_columns: str | PolarsDataType, 1788 ) -> Expr: 1789 """ 1790 Represent all columns except for the given columns. 1791 (...) 1853 1854 """ -> 1855 return F.col("*").exclude(columns, *more_columns) File \.venv\Lib\site-packages\polars\expr\expr.py:851, in Expr.exclude(self, columns, *more_columns) 768 def exclude( 769 self, 770 columns: str | PolarsDataType | Collection[str] | Collection[PolarsDataType], 771 *more_columns: str | PolarsDataType, 772 ) -> Expr: 773 """ 774 Exclude columns from a multi-column expression. 775 (...) 849 └──────┘ 850 """ --> 851 return self.meta.as_selector().exclude(columns, *more_columns).as_expr() File .venv\Lib\site-packages\polars\selectors.py:571, in Selector.exclude(self, columns, *more_columns) 566 else: 567 msg = ( 568 "invalid input for `exclude`" 569 f"\n\nExpected one or more `str` or `DataType`; found {item!r} instead." 570 ) --> 571 raise TypeError(msg) 573 if exclude_cols and exclude_dtypes: 574 msg = "cannot exclude by both column name and dtype; use a selector instead" TypeError: invalid input for `exclude` Expected one or more `str` or `DataType`; found <Expr ['cs.nth(1, require_all=true)'] at 0x21A964B6350> instead. Continue reading...