Modulenotfounderror: No Module Named 'Py4J'

Modulenotfounderror: No Module Named 'Py4J'

I installed Spark and I am running into problems loading the pyspark module into ipython. I'm getting the following error:

ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-2-49d7c4e178f8> in <module>
----> 1 import pyspark

/opt/spark/python/pyspark/__init__.py in <module>
     44 
     45 from pyspark.conf import SparkConf
---> 46 from pyspark.context import SparkContext
     47 from pyspark.rdd import RDD
     48 from pyspark.files import SparkFiles

/opt/spark/python/pyspark/context.py in <module>
     27 from tempfile import NamedTemporaryFile
     28 
---> 29 from py4j.protocol import Py4JError
     30 
     31 from pyspark import accumulators

ModuleNotFoundError: No module named 'py4j'
1

1 Answer

If you can run spark directly, maybe you have to fix the environment variable PYTHONPATH. Check the filename in the directory $SPARK_HOME/python/lib/. If the Spark version 2.4.3, the file is py4j-0.10.7-src.zip:

export PYTHONPATH=$SPARK_HOME/python:$SPARK_HOME/python/lib/py4j-0.10.7-src.zip:$PYTHONPATH
2

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David Miller
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David Miller

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.