# 'mne.preprocessing' has no attribute	'compute\_current\_source\_density'

**URL:** <https://mne.discourse.group/t/mne-preprocessing-has-no-attribute-compute-current-source-density/2152>\
**Category:** Mailing List Archive (read-only)\
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**Created:** [April 11, 2020, 11:05am UTC](https://mne.discourse.group/t/mne-preprocessing-has-no-attribute-compute-current-source-density/2152 "2020-04-11T11:05:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [April 11, 2020, 11:05am UTC](https://mne.discourse.group/t/mne-preprocessing-has-no-attribute-compute-current-source-density/2152/1 "2020-04-11T11:05:29Z")

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Hello Everyone,

I was going through the application of the Laplacian filter using my own  
data and the tutorial (  
[https://github.com/mne-tools/mnepython/blob/master/examples/preprocessing/plot\_eeg\_csd.py](https://github.com/mne-tools/mnepython/blob/master/examples/preprocessing/plot_eeg_csd.py)  
).  
However, the mne.preprocessing.compute\_current\_source\_density() do not seem  
the work.

AttributeError: module 'mne.preprocessing' has no attribute  
'compute\_current\_source\_density'

Could there be something wrong with the .py script?  
Thank you very much for your help and for developing MNE!

\*Fran?ois Foerster, Ph.D\*  
\*French National Institute of Health and Medical Research\*  
\*Strasbourg, France\*  
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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [April 11, 2020, 2:58pm UTC](https://mne.discourse.group/t/mne-preprocessing-has-no-attribute-compute-current-source-density/2152/2 "2020-04-11T14:58:25Z")

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Dear Fran?ois,

make sure your version of mne python is recent enough.

to check you can do from a terminal

mne sys\_info

from python

mne.sys\_info()

compute\_current\_source\_density appeared in version 0.20 that was  
released a few days ago.

Alex

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [April 11, 2020, 6:27pm UTC](https://mne.discourse.group/t/mne-preprocessing-has-no-attribute-compute-current-source-density/2152/3 "2020-04-11T18:27:00Z")

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Indeed, I wasn't up to date, did not notice the last version!

Thank you so much.  
All the best,

\*Fran?ois Foerster, Ph.D\*  
\*French National Institute of Health and Medical Research\*  
\*Strasbourg, France\*