STY: Add strict=True to zip in pandas/core/reshape/reshape.py (#63151)

AnonToky · pre-commit-ci[bot] · web-flow · commit a7e0900cfb75 · 2025-11-25T10:45:23.000-08:00
Co-authored-by: pre-commit-ci[bot] &lt;66853113+pre-commit-ci[bot]@users.noreply.github.com&gt;
diff --git a/pandas/core/reshape/reshape.py b/pandas/core/reshape/reshape.py
@@ -778,7 +778,7 @@ def _stack_multi_column_index(columns: MultiIndex) -> MultiIndex | Index:
 
     levs = (
         [lev[c] if c >= 0 else None for c in codes]
-        for lev, codes in zip(columns.levels[:-1], columns.codes[:-1])
+        for lev, codes in zip(columns.levels[:-1], columns.codes[:-1], strict=True)
     )
 
     # Remove duplicate tuples in the MultiIndex.

Original file line number	Diff line number	Diff line change
`@@ -778,7 +778,7 @@ def _stack_multi_column_index(columns: MultiIndex) -> MultiIndex \| Index:`
`778`	`778`
`779`	`779`	`levs = (`
`780`	`780`	`[lev[c] if c >= 0 else None for c in codes]`
`781`		`- for lev, codes in zip(columns.levels[:-1], columns.codes[:-1])`
	`781`	`+ for lev, codes in zip(columns.levels[:-1], columns.codes[:-1], strict=True)`
`782`	`782`	`)`
`783`	`783`
`784`	`784`	`# Remove duplicate tuples in the MultiIndex.`