Top "Py4j" questions

Py4J enables Python programs to dynamically access arbitrary Java objects

Py4JJavaError: An error occurred while calling o1670.collectToPython

I am trying to convert a spark RDD to Pandas DataFrame. I'm using a csv file as an example. The …

apache-spark pyspark py4j
Pyspark ERROR:py4j.java_gateway:An error occurred while trying to connect to the Java server (127.0.0.1:50532)

Hello I was working with Pyspark,implementing a sentiment analysis project using ML package first time the cofde work good …

pyspark apache-spark-ml 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:

python-3.x apache-spark hadoop pyspark py4j
How to call java from python using PY4J

I want to call java from python with Py4J library, from py4j.java_gateway import JavaGateway gateway = JavaGateway() # …

java python py4j
Connecting and testing a JDBC driver from Python

I'm trying to do some testing on our JDBC driver using Python. Initially figuring out JPype, I eventually managed to …

python jdbc py4j jpype
pyjnius "Class not found" when importing jar file

I'm trying to make pyjnius work with a jar file I built from java application, but I keep getting the "…

java python pyjnius py4j