polars.DataFrame.to_init_repr#

DataFrame.to_init_repr(n: int = 1000) → str[source]#

Convert DataFrame to instantiatable string representation.

Parameters:

n: Only use first n rows.

See also

polars.Series.to_init_repr
polars.from_repr

Examples

>>> df = pl.DataFrame(
...     [
...         pl.Series("foo", [1, 2, 3], dtype=pl.UInt8),
...         pl.Series("bar", [6.0, 7.0, 8.0], dtype=pl.Float32),
...         pl.Series("ham", ["a", "b", "c"], dtype=pl.Categorical),
...     ]
... )
>>> print(df.to_init_repr())
pl.DataFrame(
    [
        pl.Series("foo", [1, 2, 3], dtype=pl.UInt8),
        pl.Series("bar", [6.0, 7.0, 8.0], dtype=pl.Float32),
        pl.Series("ham", ['a', 'b', 'c'], dtype=pl.Categorical),
    ]
)

>>> df_from_str_repr = eval(df.to_init_repr())
>>> df_from_str_repr
shape: (3, 3)
┌─────┬─────┬─────┐
│ foo ┆ bar ┆ ham │
│ --- ┆ --- ┆ --- │
│ u8  ┆ f32 ┆ cat │
╞═════╪═════╪═════╡
│ 1   ┆ 6.0 ┆ a   │
│ 2   ┆ 7.0 ┆ b   │
│ 3   ┆ 8.0 ┆ c   │
└─────┴─────┴─────┘