Unresolved import org.python / working with jython and java?

2024/9/24 1:25:18

I'm using Eclipse and I"m trying to create a java program that can run my python code. I'm following the guidelines on this page: http://jythonpodcast.hostjava.net/jythonbook/en/1.0/JythonAndJavaIntegration.html#using-jython-within-java-applications

But when I include these statements at the top:

package org.jython.book.util;import org.python.core.PyObject;
import org.python.core.PyString;
import org.python.util.PythonInterpreter;

I receive a message saying "The import org.python cannot be resolved." Any suggestions on how to fix this?

Thank you so much!!

Answer

In the Package Explorer (on the left), right click on your Java project and select Properties.
In the treeview on the left, select Java Build Path.
Select the Libraries tab.
Select Add External JARs...
Browse to your Jython installation (C:\jython2.5.2 for me), and select jython.jar. Click OK.
Click OK.

https://en.xdnf.cn/q/71760.html

Related Q&A

elegant unpacking variable-length tuples

A real, if silly problem:https://github.com/joshmarshall/tornadorpc/blob/master/tornadorpc/base.pydef start_server(handlers, ...):...for (route, handler) in handlers:...Normally "handlers" is…

Extracting data from a 3D scatter plot in matplotlib

Im writing an interface for making 3D scatter plots in matplotlib, and Id like to access the data from a python script. For a 2D scatter plot, I know the process would be:import numpy as np from matpl…

How does Pythonic garbage collection with numpy array appends and deletes?

I am trying to adapt the underlying structure of plotting code (matplotlib) that is updated on a timer to go from using Python lists for the plot data to using numpy arrays. I want to be able to lower …

What is the default if I install virtualenv using pip and pip3 respectively?

I used sudo pip install virtualenv, then when I run virtualenv ENV in a directory, I get a Python 2 virtual enviroment.If I use pip3 install virtualenv to install virtualenv again, will it override the…

Flask Admin ModelView different fields between CREATE and EDIT

In a Flask app using Flask Admin I would like to be able to define different form fields in the Edit section of a ModelView than those in the Create section.The form_columns setting applies to both Cre…

Python compilation error: LONG_BIT definition appears wrong for platform

This error message is not unknown, I have already reinstalled many packages, but so far not yet found a solution.I get the following error from the command pip install cryptography/usr/include/python2.…

Randomly sampling lines from a file

I have a csv file which is ~40gb and 1800000 lines. I want to randomly sample 10,000 lines and print them to a new file.Right now, my approach is to use sed as:(sed -n $vars < input.txt) > output…

Is Pythons hashlib.sha256(x).hexdigest() equivalent to Rs digest(x,algo=sha256)

Im not a python programmer, but Im trying to translate some Python code to R. The piece of python code Im having trouble with is:hashlib.sha256(x).hexdigest()My interpretation of this code is that the…

How to do Histogram Equalization on specific area

I have a image and I want to do HE or CLAHE on specific area of the image. I already have a mask for the image. Is there any possible way to do so?

Timing out a multiprocessing function

I need to set a time limit on a python function which use some multiprocessing stuff (I dont know if it matters). Something like this:function(a_list):p1 = Process(a_list[0:len(a_list/2)])p2 = Process(…

Latest Q&A