pitrou commented on code in PR #39781:
URL: https://github.com/apache/arrow/pull/39781#discussion_r1480240232
##########
python/pyarrow/_parquet.pyx:
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@@ -849,6 +849,18 @@ cdef class FileMetaData(_Weakrefable):
cdef Buffer buffer = sink.getvalue()
return _reconstruct_filemetadata, (buffer,)
+ def __hash__(self):
+ def flatten(obj):
Review Comment:
Note that it can be as simple as taking the hash of a `bytes` copy:
```python
>>> hash(stream.getvalue().to_pybytes())
5574314894425565867
```
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