# How can I create isodoses module from python

**URL:** <https://discourse.slicer.org/t/how-can-i-create-isodoses-module-from-python/11329>\
**Category:** Development\
**Created:** [April 28, 2020, 1:46pm UTC](https://discourse.slicer.org/t/how-can-i-create-isodoses-module-from-python/11329 "2020-04-28T13:46:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![heshumeng](https://avatars.discourse-cdn.com/v4/letter/h/c4cdca/32.png) [@heshumeng](https://discourse.slicer.org/u/heshumeng)\
**Post date:** [April 28, 2020, 1:46pm UTC](https://discourse.slicer.org/t/how-can-i-create-isodoses-module-from-python/11329/1 "2020-04-28T13:46:00Z")

</div>

> > > slicer.modules.isodose.logic().CreateIsodoseSurfaces(vtkMRMLIsodoseNode)

Traceback (most recent call last):

File “”, line 1, in

NameError: name ‘vtkMRMLIsodoseNode’ is not defined