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[Enh]: Chain operations before .over() for LazyFrames

enhancementNew feature or requestNew feature or request

harder than it looks

Status: Open.

#3358 In narwhals-dev/narwhals;

· naive-forecaster opened on Dec 17, 2025

[Enh]: add Expr.sin and Series.sin

enhancementNew feature or requestNew feature or request

Status: Open.

#3355 In narwhals-dev/narwhals;

· liamholmes31 opened on Dec 15, 2025

[Enh]: add support for Expr.list.eval

Status: Open.

#3351 In narwhals-dev/narwhals;

· tokoko opened on Dec 13, 2025

[Bug]: Enum accepts non-string categories

bug: it should raise an error but doesn't

dtypes

Status: Open.

#3338 In narwhals-dev/narwhals;

· FBruzzesi opened on Nov 30, 2025

typing: <code>mypy</code> infers <code>from_native(IntoFrameT) -&gt; IntoDataFrameT</code>

bug: it raises an error but shouldn't

needs investigation

typing

Status: Open.

#3319 In narwhals-dev/narwhals;

· afrisgaard opened on Nov 21, 2025

[Enh]: Add SQL-like string parsing into Narwhals expressions (or document examples)

enhancementNew feature or requestNew feature or request

Status: Open.

#3310 In narwhals-dev/narwhals;

· danielgafni opened on Nov 16, 2025

doc/enh: clarify whether <code>nw.GroupBy</code> maintains order or not / add <code>maintain_order</code> to <code>DataFrame.group_by</code>

enhancementNew feature or requestNew feature or request

Status: Open.

#3309 In narwhals-dev/narwhals;

· danielgafni opened on Nov 14, 2025

[Enh]: Add <code>narwhals.empty_like</code> or another way to construct an empty Narwals frame with known schema and implementation

duplicateThis issue or pull request already existsThis issue or pull request already exists

enhancementNew feature or requestNew feature or request

Status: Open.

#3296 In narwhals-dev/narwhals;

· danielgafni opened on Nov 10, 2025

[Enh]: Add <code>cut</code> method to <code>nw.Expr</code> and <code>nw.Series</code>

enhancementNew feature or requestNew feature or request

needs discussion

Status: Open.

#3293 In narwhals-dev/narwhals;

· felixgwilliams opened on Nov 8, 2025

test: use <code>dask</code> with pyarrow dtype backend for testing

internal

tests

Status: Open.

#3279 In narwhals-dev/narwhals;

· MarcoGorelli opened on Nov 4, 2025

<code>typing.IntoSchema</code> too narrow

dtypes

typing

Status: Open.

#3257 In narwhals-dev/narwhals;

· MarcoGorelli opened on Oct 30, 2025

[Enh]: Implement <code>narwhals.struct</code>

enhancementNew feature or requestNew feature or request

nested data`list`, `struct`, etc`list`, `struct`, etc

Status: Open.

#3247 In narwhals-dev/narwhals;

· danielgafni opened on Oct 28, 2025