Traceback (most recent call last):


 "petastorm_genome.py", line 19, in <module>

python_hello_world()


 "petastorm_genome.py", line 12, in python_hello_world

for schema_view in reader:


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/petastorm/reader.py", line 622, in __next__

return self._results_queue_reader.read_next(self._workers_pool, self.schema, self.ngram)


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/petastorm/arrow_reader_worker.py", line 42, in read_next

result_table = workers_pool.get_results()


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/petastorm/workers_pool/dummy_pool.py", line 72, in get_results

self._worker.process(*args, **kargs)


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/petastorm/arrow_reader_worker.py", line 138, in process

lambda: self._load_rows(parquet_file, piece, shuffle_row_drop_partition))


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/petastorm/cache.py", line 39, in get

return fill_cache_func()


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/petastorm/arrow_reader_worker.py", line 138, in <lambda>

lambda: self._load_rows(parquet_file, piece, shuffle_row_drop_partition))


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/petastorm/arrow_reader_worker.py", line 152, in _load_rows

result = self._read_with_shuffle_row_drop(piece, pq_file, column_names, shuffle_row_drop_range)


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/petastorm/arrow_reader_worker.py", line 224, in _read_with_shuffle_row_drop

partitions=self._dataset.partitions


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyarrow/parquet.py", line 562, in read

table = reader.read_row_group(self.row_group, **options)


 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyarrow/parquet.py", line 188, in read_row_group

use_threads=use_threads)


 "pyarrow/_parquet.pyx", line 696, in pyarrow._parquet.ParquetReader.read_row_group
TypeError: an integer is required

Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "/usr/local/lib/python3.4/site-packages/pandas/core/generic.py", line 3670, in interpolate

raise TypeError("Cannot interpolate with all NaNs.")
TypeError: Cannot interpolate with all NaNs.
