polars.Expr.str.strip_prefix#

Expr.str.strip_prefix(prefix: IntoExpr) → Expr[source]#

Remove prefix.

The prefix will be removed from the string exactly once, if found.

Parameters:

prefix: The prefix to be removed.

Examples

>>> df = pl.DataFrame({"a": ["foobar", "foofoobar", "foo", "bar"]})
>>> df.with_columns(pl.col("a").str.strip_prefix("foo").alias("stripped"))
shape: (4, 2)
┌───────────┬──────────┐
│ a         ┆ stripped │
│ ---       ┆ ---      │
│ str       ┆ str      │
╞═══════════╪══════════╡
│ foobar    ┆ bar      │
│ foofoobar ┆ foobar   │
│ foo       ┆          │
│ bar       ┆ bar      │
└───────────┴──────────┘