robotology / yarp

YARP - Yet Another Robot Platform
http://www.yarp.it
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Error: module 'yarp' has no attribute 'Network' #3122

Closed 16239014 closed 3 months ago

16239014 commented 4 months ago

I am running an example from https://robotology.github.io/robotology-documentation/doc/html/icub_python_basic_motor.html and when I try to initialize a Yarp network it shows an error.

Code: import yarp yarp.Network.init()

ERROR LOG IN SPYDER:


Traceback (most recent call last):

  File ~/anaconda3/envs/robsub/lib/python3.11/site-packages/spyder_kernels/py3compat.py:356 in compat_exec
    exec(code, globals, locals)

  File ~/Desktop/python folder for thesis/import yarp.py:3
    yarp.Network.init()

AttributeError: module 'yarp' has no attribute 'Network'
traversaro commented 4 months ago

How did you installed YARP? Is this working if you run it outside of spyder?

16239014 commented 4 months ago

@traversaro i installed yarp with conda forge (robotology superbuild). outside spider when I do python -c "import yarp" it just go to next line and I think its fine. so now when I use yarp in spyder It shows that yarp is imported but no attribute name as Network.

code:

import yarp if hasattr(yarp, 'Network'): yarp.Network.init()

Error log:

runfile('/home/sohail/Desktop/python folder for thesis/import yarp.py', wdir='/home/sohail/Desktop/python folder for thesis') Traceback (most recent call last):

File ~/anaconda3/envs/robsub/lib/python3.11/site-packages/spyder_kernels/py3compat.py:356 in compat_exec exec(code, globals, locals)

File ~/Desktop/python folder for thesis/import yarp.py:1 from yarp import network

ImportError: cannot import name 'network' from 'yarp' (/home/sohail/anaconda3/envs/robsub/lib/python3.11/site-packages/yarp/init.py)

traversaro commented 4 months ago

Sorry, it is still not clear to me if yarp.Network.init() works outside of spyder, by just launching the python interpreter and running the import yarp and yarp.Network.init() code there. Furthermore, can you also report the conda list in the environment you are using.

Furthermore, you reported that yarp is installed via the robotology-superbuild, but in that case the init.py should be in /directory/where/you/installed/the/robotology-superbuild/build/install/lib/python3.11/site-packages/yarp/init.py , while your error report /home/sohail/anaconda3/envs/robsub/lib/python3.11/site-packages/yarp/init.py . This suggests you have a unclean setup. Can you try to install yarp (either via binaries or sources via the robotology-superbuild, but not both) in a new clean environment/system?