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Posted to issues@spark.apache.org by "Jamie (Jira)" <ji...@apache.org> on 2022/11/13 22:03:00 UTC
[jira] [Created] (SPARK-41125) Simple call to createDataFrame fails with PicklingError but only on python3.11
Jamie created SPARK-41125:
-----------------------------
Summary: Simple call to createDataFrame fails with PicklingError but only on python3.11
Key: SPARK-41125
URL: https://issues.apache.org/jira/browse/SPARK-41125
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 3.3.1
Reporter: Jamie
I am using python's pytest library to write unit tests for a pyspark library I am building. pytest has a popular capability called fixtures which allow us to write reusable preparation steps for our tests. I have a simple fixture that creates a pyspark.sql.DataFrame which works on python 3.7, 3.8, 3.9, 3.10 but fails on python 3.11.
The failing code is in a fixture called {{{}dataframe_of_purchases{}}}. Here is my fixtures code:
{code:python}
from decimal import Decimal
import pytest
from pyspark.sql import DataFrame, SparkSession
from pyspark.sql.types import (
DecimalType,
IntegerType,
StringType,
StructField,
StructType,
)
@pytest.fixture(scope="session")
def purchases_schema():
return StructType(
[
StructField("Customer", StringType(), True),
StructField("Store", StringType(), True),
StructField("Channel", StringType(), True),
StructField("Product", StringType(), True),
StructField("Quantity", IntegerType(), True),
StructField("Basket", StringType(), True),
StructField("GrossSpend", DecimalType(10, 2), True),
]
)
@pytest.fixture(scope="session")
def dataframe_of_purchases(purchases_schema) -> DataFrame:
spark = SparkSession.builder.getOrCreate()
return spark.createDataFrame(
data=[
("Leia", "Hammersmith", "Instore", "Cheddar", 2, "Basket1", Decimal(2.50))
],
schema=purchases_schema,
)
{code}
This code can be seen here: [https://github.com/jamiekt/jstark/blob/9e1d0e654195932a0765f66db6c8359ed8b60a3b/tests/conftest.py]
The tests run in a GitHub Actions CI pipeline against many different versions of python on linux, Windows & MacOS. The tests only fail for python 3.11, and on all platforms:
!image-2022-11-13-21-58-35-751.png!
This run can be seen at: https://github.com/jamiekt/jstark/actions/runs/3457011099
The error is
_pickle.PicklingError: Could not serialize object: IndexError: tuple index out of range
The full stacktrace is:
{quote}
Traceback (most recent call last):
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/serializers.py", line 458, in dumps
return cloudpickle.dumps(obj, pickle_protocol)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/cloudpickle/cloudpickle_fast.py", line 73, in dumps
cp.dump(obj)
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/cloudpickle/cloudpickle_fast.py", line 602, in dump
return Pickler.dump(self, obj)
^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/cloudpickle/cloudpickle_fast.py", line 692, in reducer_override
return self._function_reduce(obj)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/cloudpickle/cloudpickle_fast.py", line 565, in _function_reduce
return self._dynamic_function_reduce(obj)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/cloudpickle/cloudpickle_fast.py", line 546, in _dynamic_function_reduce
state = _function_getstate(func)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/cloudpickle/cloudpickle_fast.py", line 157, in _function_getstate
f_globals_ref = _extract_code_globals(func.__code__)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/cloudpickle/cloudpickle.py", line 334, in _extract_code_globals
out_names = {names[oparg]: None for _, oparg in _walk_global_ops(co)}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/runner/.local/share/hatch/env/virtual/jstark/fjzPEUEi/jstark/lib/python3.11/site-packages/pyspark/cloudpickle/cloudpickle.py", line 334, in <dictcomp>
out_names = {names[oparg]: None for _, oparg in _walk_global_ops(co)}
~~~~~^^^^^^^
IndexError: tuple index out of range
{quote}
This is not a huge blocker for me however I assume it will be for someone at some point so I thought it prudent to report it here.
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