# Python Set MasterVolumeNode

**URL:** <https://discourse.slicer.org/t/python-set-mastervolumenode/12437>\
**Category:** Development\
**Created:** [July 8, 2020, 1:42pm UTC](https://discourse.slicer.org/t/python-set-mastervolumenode/12437 "2020-07-08T13:42:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vertebra](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/vertebra/32/7475_2.png) [@vertebra](https://discourse.slicer.org/u/vertebra)\
**Post date:** [July 8, 2020, 1:42pm UTC](https://discourse.slicer.org/t/python-set-mastervolumenode/12437/1 "2020-07-08T13:42:31Z")

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Is the masterVolumeNode automatically set to the only master volume? For example, if a user were to upload their own data called Chest(Chest.nrrd), how would I set the masterVolumeNode to Chest(without using the name of the file)?