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worker_util.py
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worker_util.py
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#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""
Util functions for workers.
"""
import sys
from typing import IO
from pyspark.errors import PySparkRuntimeError
from pyspark.serializers import (
UTF8Deserializer,
CPickleSerializer,
)
pickleSer = CPickleSerializer()
utf8_deserializer = UTF8Deserializer()
def check_python_version(infile: IO) -> None:
"""
Check the Python version between the running process and the one used to serialize the command.
"""
version = utf8_deserializer.loads(infile)
if version != "%d.%d" % sys.version_info[:2]:
raise PySparkRuntimeError(
error_class="PYTHON_VERSION_MISMATCH",
message_parameters={
"worker_version": str(sys.version_info[:2]),
"driver_version": str(version),
},
)