polars.from_dict¶
- polars.from_dict(data: Mapping[str, Union[Sequence, Mapping]], columns: Optional[Sequence[str]] = None) polars.internals.frame.DataFrame¶
Construct a DataFrame from a dictionary of sequences.
- Parameters
- datadict of sequences
Two-dimensional data represented as a dictionary. dict must contain Sequences.
- columnsSequence of str, default None
Column labels to use for resulting DataFrame. If specified, overrides any labels already present in the data. Must match data dimensions.
- Returns
- DataFrame
Examples
>>> data = {"a": [1, 2], "b": [3, 4]} >>> df = pl.from_dict(data) >>> df shape: (2, 2) ┌─────┬─────┐ │ a ┆ b │ │ --- ┆ --- │ │ i64 ┆ i64 │ ╞═════╪═════╡ │ 1 ┆ 3 │ ├╌╌╌╌╌┼╌╌╌╌╌┤ │ 2 ┆ 4 │ └─────┴─────┘