Tutorial Error

[MADONOKOUKI]

Hi, my name is koki. I got an error like that. I use anaconda3-5.3.1 and Python 3.5.6. I want to know why was it error happened?

`

import ikpy my_chain = ikpy.chain.Chain.from_urdf_file("model.urdf") Traceback (most recent call last): File "", line 1, in AttributeError: module 'ikpy' has no attribute 'chain' `

[Benoit-LdL]

Same issue here, I can't seem to get any submodules of ikpy to work. I'm running version 3.0.1 with python 2.7.12... Tried some of the test scripts without any luck: ` from ikpy.chain import Chain --> ImportError: No module named chain

import ikpy.utils.plot as plot_utils --> ImportError: No module named utils.plot

ikpy.chain.Chain() --> AttributeError: 'module' object has no attribute 'chain'

from ikpy.link import OriginLink, URDFLink --> ImportError: No module named link `

Thanks in advance for your help! Kind regards, Benoît

[Phylliade]

Hello @MADONOKOUKI @Benoit-LdL,

How are you installing IKPy? (On my side, i'm not able to reproduce this issue)

Besides, @MADONOKOUKI, what version of IKPy are you using?

[KyleORourke2]

For clarity, we are following this quick start tutorial: https://github.com/Phylliade/ikpy/blob/master/tutorials/Quickstart.ipynb

I'm having the same issue. I'm using the latest version of ikpy v3.1 with Python 3.8.3. I've tried both 'pip install ikpy' and from source with the same error:

module 'ikpy' has no attribute 'chain'

Edit 1: Running on Python3.9.1 did not help.

Edit 2: Including

from ikpy.chain import Chain

seems to fix it.

Now it is missing 'target_frame' which I assume was supposed to be given by my_chain.forward_kinematics?

[Zju-George]

@Phylliade @Benoit-LdL @MADONOKOUKI @KyleORourke2 Check out this: https://stackoverflow.com/questions/8899198/module-has-no-attribute In pyik the submodule is not directory but pyfile so it is not imported automatically. A quick solution, add import in init.py like this Then it will work.

[Piit3r]

Same here in local. I also tested on google colab : I imported de Quickstart file. Just run pip install ikpy on top and execute. Then i have the same problem.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Phylliade]

Hello @MADONOKOUKI, this has been fixed in master, you call pull the latest ipynb file and this will work. No need to update IKPy.