how to do a weka API call

[Qihong Kuang]

I want to use the classifier in weka in python. However, it said "no module call "weka.core" and no module call "javabridge" when I run. I follow the instruction to install python weka wrapper but it still says the same thing

[Peter Reutemann]

> I want to use the classifier in weka in python. However, it said "no module
> call "weka.core" and no module call "javabridge" when I run. I follow the
> instruction to install python weka wrapper but it still says the same thing

What were the steps that you used to install python-weka-wrapper
(Python 2.7 or Python 3 version)?
What's your OS (Linux/Mac/Windows)? Are you using a virtual environment?

Cheers, Peter
--
Peter Reutemann
Dept. of Computer Science
University of Waikato, NZ
+64 (7) 858-5174
http://www.cms.waikato.ac.nz/~fracpete/
http://www.data-mining.co.nz/

[Qihong Kuang]

My OS is Windows. I install numpy, javabridge. and I use python 2.7

[Peter Reutemann]

> My OS is Windows. I install numpy, javabridge. and I use python 2.7

You followed these instructions here?
http://fracpete.github.io/python-weka-wrapper/install.html#windows

When you installed javabridge, did you get any errors?

[Qihong Kuang]

No, I didn't get any errors. Below are my installations.

[Peter Reutemann]

> No, I didn't get any errors. Below are my installations.

Seems alright.

Can you please run the following command and post the output (as text,
not a screenshot):
pip freeze

And your Java version:
java -version

[Qihong Kuang]

Hi Peter! Below is my python version and java version

[Peter Reutemann]

> Hi Peter! Below is my python version and java version

Try with Java 8.

[Mohd Faisal]

I am getting a similar error. 

I did everything as told in the instructions except for installing Xcode(but have install XCode command-line tools). Plus do we have to set any paths. If yes can you tell how.

[Peter Reutemann]

> I am getting a similar error.
>
>

> I did everything as told in the instructions except for installing Xcode(but have install XCode command-line tools). Plus do we have to set any paths. If yes can you tell how.

Sorry, but I don't have access to a Mac. What's your Java version?

[Mohd Faisal]

Java 8.

I did everything explained here https://www.youtube.com/watch?v=CORXWYam36E

Should I create a new Environment and again install everything.

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[Peter Reutemann]

> Java 8.
> I did everything explained here https://www.youtube.com/watch?v=CORXWYam36E
> Should I create a new Environment and again install everything.

These videos were create a while ago when I had access to a Mac
(actually a virtual machine). It is more than possible that things
have changed since then.

Since I can't unfortunately help in your case, how about:
- install VirtualBox (https://www.virtualbox.org/wiki/Downloads)
- set up a new virtual machine using eg Ubuntu
- install pww (or pww3) in the virtual machine:
Python 2.7
http://fracpete.github.io/python-weka-wrapper/install.html#ubuntu
Python 3.x
http://fracpete.github.io/python-weka-wrapper3/install.html#ubuntu

[Mohd Faisal]

Now it is working, it was some problem with the environment in Jupyter notebook.

Well, thanks for the assistance.

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[Peter Reutemann]

> Now it is working, it was some problem with the environment in Jupyter
> notebook.
> Well, thanks for the assistance.

Great that it's working!

Since other people had problems with using pww in combination with
Jupyter (and I don't use Jupyter), would you be willing to share how
you managed to get it going?