# Custom Signal/Slots with PythonQt

**URL:** <https://discourse.slicer.org/t/custom-signal-slots-with-pythonqt/3278>\
**Category:** Development\
**Tags:** python, qt\
**Created:** [June 25, 2018, 1:38pm UTC](https://discourse.slicer.org/t/custom-signal-slots-with-pythonqt/3278 "2018-06-25T13:38:25Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![PaoloZaffino](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/paolozaffino/32/81052_2.png) [@PaoloZaffino](https://discourse.slicer.org/u/PaoloZaffino)\
**Post date:** [May 25, 2020, 12:23pm UTC](https://discourse.slicer.org/t/custom-signal-slots-with-pythonqt/3278/7 "2020-05-25T12:23:23Z")

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Hi all,  
I’m interested in emitting a signal and, if some object is registered on this “channel”, in receiving it.  
Any idea about which qt tool can I use?  
I also read [this](https://discourse.slicer.org/t/use-of-qt-signal-leads-to-a-crash-on-exit/8321) and I got a crash too.

Thanks a lot.  
Paolo

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