Re: [PR] GH-48808: [Python] Drop support for Pandas < 2.0.3 [arrow]

["Copilot (via GitHub)" <gi...@apache.org>]

Copilot commented on code in PR #50444:
URL: https://github.com/apache/arrow/pull/50444#discussion_r3552391199


##########
python/pyarrow/types.pxi:
##########
@@ -186,9 +186,7 @@ def _get_pandas_tz_type(arrow_type, coerce_to_ns=False):
 
 
 def _to_pandas_dtype(arrow_type, options=None):
-    coerce_to_ns = (options and options.get('coerce_temporal_nanoseconds', False)) or (
-        _pandas_api.is_v1() and arrow_type.id in
-        [_Type_DATE32, _Type_DATE64, _Type_TIMESTAMP, _Type_DURATION])
+    coerce_to_ns = (options and options.get('coerce_temporal_nanoseconds', False))
 

Review Comment:
   `coerce_to_ns` can end up as `None` (when `options` is `None`) or `{}` (when `options` is an empty dict) because of the `options and ...` expression. While this happens to work via truthiness checks, it’s clearer/safer to make this an explicit boolean `False` unless the option is set.



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