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          chore(typing): add missing _FullContext to CompliantDataFrame
          #2251
        
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    - Only spotted while trying out `CompliantGroupBy` - `CompliantLazyFrame` already has these attributes
  This was referenced Mar 19, 2025 
      
              
                    dangotbanned
  
              
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                    Mar 20, 2025 
                  
              
              
            
            
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  | _implementation: Implementation | ||
| _backend_version: tuple[int, ...] | ||
| _version: Version | 
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I was pretty surprised that I didn't need to change anything outside of the protocol
Looks like everyone was already compliant 😄
              
                    MarcoGorelli
  
              
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                    Mar 20, 2025 
                  
              
              
            
            
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* feat(DRAFT): Add `CompliantGroupBy` Based on (#2184 (comment)) * fix: `3.8` compat Needed for `__init__` support * chore: export to `_compliant` * refactor: Implement `ArrowGroupBy` * fix(typing): Get an agreement on variance - Dropped `native` as it got too complex - I've done this fake `Any` thing to make `mypy` understand in multiple places * refactor: Implement `PandasLikeGroupBy`? - Having a hard time working out what is going on here - All I've changed is what the refs are named * refactor: Implement `DaskLazyGroupBy` Much happier with this than the `pandas` one * chore(typing): Utilize (#2251) Fixes https://github.com/narwhals-dev/narwhals/actions/runs/13968615945/job/39104706209?pr=2252 * refactor: `CompliantGroupBy._remap_expr_name` - Shorted in each backend - Added docs - Accounts for `dask` deviation from `str` * refactor: `CompliantGroupBy._leaf_name` - More performant to compile a single pattern and reuse everywhere - Gives a name to a common op - Backend code is shorter * refactor: `CompliantGroupBy._is_simple` Keeps this part of `pandas` in sync, despite it doing some extra name stuff * fix: pre `3.13` protocol support https://results.pre-commit.ci/run/github/760058710/1742478308._GAah8QXT2i9H9TbtcMHwQ * refactor: Move most of `CompliantGroupBy` -> `DepthTrackingGroupBy` - `_duckdb` and `_spark_like` don't need these parts (only `_dask` does) - Also avoids needing a `TypeVar` default, which caused some issues in https://github.com/narwhals-dev/narwhals/actions/runs/13970848097/job/39111959826?pr=2252 * refactor(DRAFT): Start simplifying, aligning lazy group bys - These two are almost identical - Trying to reduce them as much as possible, before moving the common parts to `nw._compliant.LazyGroupBy` * help `mypy` https://github.com/narwhals-dev/narwhals/actions/runs/13972033263/job/39116058196?pr=2252 * refactor: Adds `LazyGroupBy` - Greatly simplifies what each backend needs to implement - Avoids creating and combining intermediate lists - Avoids performing a `not in exclude` check, where `exclude` is empty - Identified and documented a new common method `CompliantExpr._is_multi_output_agg` * feat(typing): `Polars*GroupBy` and `Compliant*Frame` - Will need to make (inavriant) `CompliantExprT` to type the second part correctly - Believe that is also causing this weird error ``` Argument of type "CompliantExprT_contra@CompliantDataFrame" cannot be assigned to parameter "exprs" of type "CompliantExprT_contra@CompliantDataFrame" in function "select" Type "CompliantExprT_contra@CompliantDataFrame" is not assignable to type "CompliantExprT_contra@CompliantDataFrame" Pylance(reportArgumentType) ``` * chore: Rename pattern, remove temp doc * Long variable names < types & docs * refactor: listcomp < genexpr * chore(typing): Temp ignore for false positive * avoid unused import * refactor: Use `Implementation.is_pandas`
  
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Related issues
CompliantDataFrame#2223CompliantLazyFrame#2232Checklist
If you have comments or can explain your changes, please do so below
CompliantGroupBy#2252)CompliantLazyFramealready has these attributes