jorisvandenbossche commented on code in PR #13652:
URL: https://github.com/apache/arrow/pull/13652#discussion_r925414671
##########
python/pyarrow/types.pxi:
##########
@@ -494,6 +505,36 @@ cdef class StructType(DataType):
"""
return self.struct_type.GetFieldIndex(tobytes(name))
+ def field(self, i):
+ """
+ Select a field by its column name or numeric index.
+
+ Parameters
+ ----------
+ i : int or str
+
+ Returns
+ -------
+ pyarrow.Field
+
+ Examples
+ --------
+
+ >>> import pyarrow as pa
+ >>> struct_type = pa.struct({'x': pa.int32(), 'y': pa.string()})
+
+ Select the second field:
+
+ >>> struct_type.field(1)
+ pyarrow.Field<y: string>
+
+ Select the field of the column named 'x':
+
+ >>> struct_type.field('x')
+ pyarrow.Field<x: int32>
+ """
+ return self.__getitem__(i)
Review Comment:
I would maybe do it the other way around: move the current code of getitem
here, and in getitem call `return self.field(key)` (that feels a bit more
typical pattern than explicitly calling a dunder method here)
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