[Python] Replace a row in python polars

I want to replace a row in a polars DataFrame with a single value:

import numpy as np
import polars as pl

df = np.zeros(shape=(4, 4))
df = pl.DataFrame(df)


For example I want to replace all values in row at index 1 with 1.0

┌──────────┬──────────┬──────────┬──────────┐
│ column_0 ┆ column_1 ┆ column_2 ┆ column_3 │
│ --- ┆ --- ┆ --- ┆ --- │
│ f64 ┆ f64 ┆ f64 ┆ f64 │
╞══════════╪══════════╪══════════╪══════════╡
│ 0.0 ┆ 0.0 ┆ 0.0 ┆ 0.0 │
│ 1.0 ┆ 1.0 ┆ 1.0 ┆ 1.0 │
│ 0.0 ┆ 0.0 ┆ 0.0 ┆ 0.0 │
│ 0.0 ┆ 0.0 ┆ 0.0 ┆ 0.0 │
└──────────┴──────────┴──────────┴──────────┘


I was looking for a straightforward solution in the documentation, but I couldn't find one.

Continue reading...