viirya commented on code in PR #50327:
URL: https://github.com/apache/arrow/pull/50327#discussion_r3630952037
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python/pyarrow/array.pxi:
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@@ -1864,7 +1864,21 @@ cdef class Array(_PandasConvertible):
lst : list
"""
self._assert_cpu()
- return [x.as_py(maps_as_pydicts=maps_as_pydicts) for x in self]
+ cdef int64_t i, n = self.length()
+ if maps_as_pydicts is not None:
+ # Converting maps to dicts has per-entry semantics (duplicate-key
+ # detection); use the Scalar-based conversion for exact behavior.
+ return [x.as_py(maps_as_pydicts=maps_as_pydicts) for x in self]
Review Comment:
Added a TODO in 1d80beb925. Note the stacked #50430 removes this limitation
entirely — it threads `maps_as_pydicts` through `_getitem_py` so every type
keeps its fast path when the flag is set.
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