tkinter package in Python Script node

Hawk326040 · November 21, 2019, 5:56am

I have a workflow that will pop out a new window after executed for interacting with a user, I realize this via Python Script Node, import Tkinter package. it works well in Windows OS, but it will make the computer hung on or quit the KNIME analytics platform if executing it in Mac OS.
The workflow looks like this

executing this workflow in Windows OS, there is a new window popout:

I shared this workflow in KNIME Hub, here is the link

Appreciate it if anyone help to fix this problem in Mac OS.

MarcelW · November 21, 2019, 1:49pm

Hi Hawk326040,

Could you please upload your knime.log of the KNIME installation on MacOS here? This would simplify diagnostics. Thanks!

Marcel

Hawk326040 · November 26, 2019, 5:12am

Hi Marcel,

To get the log file, I deleted the old one, and restarted KNIME, then executed the Python Script node. The following is the content of the new generated log file.

2019-11-25 17:55:13,733 : WARN : ModalContext : : Node : GroupBy : 0:50 : 8 invalid aggregation column(s) found.

2019-11-25 17:59:33,289 : WARN : Thread-11 : : PythonKernel : Python Script (1⇒1) : 0:92 : 2019-11-25 17:59:33.288 python3.7[26189:1075959] CGSTrackingRegionSetIsEnabled returned CG error 268435459

2019-11-25 17:59:33,301 : WARN : Thread-11 : : PythonKernel : Python Script (1⇒1) : 0:92 : 2019-11-25 17:59:33.288 python3.7[26189:1075959] CGSTrackingRegionSetIsEnabled returned CG error 268435459

2019-11-25 17:59:33,301 : WARN : Thread-11 : : PythonKernel : Python Script (1⇒1) : 0:92 : 2019-11-25 17:59:33.289 python3.7[26189:1075959] CGSTrackingRegionSetIsEnabled returned CG error 268435459

2019-11-25 17:59:33,302 : WARN : Thread-11 : : PythonKernel : Python Script (1⇒1) : 0:92 : 2019-11-25 17:59:33.289 python3.7[26189:1075959] CGSTrackingRegionSetIsEnabled returned CG error 268435459

2019-11-25 18:07:58,700 : WARN : ModalContext : : Node : Database Reader (legacy) : 2:110 : Could not determine table spec from database query: ORA-00942: table or view does not exist

2019-11-25 18:07:58,780 : WARN : ModalContext : : Node : GroupBy : 2:50 : 8 invalid aggregation column(s) found.

MarcelW · November 26, 2019, 2:26pm

This seems to be the cause. Some workarounds can be found here: Issue 37833: tkinter crashes macOS in the latest macOS update 10.14.6 - Python tracker , here: Tkinter app on macOS 10.14.6 causes WindowServer event port death · Issue #4334 · pyinstaller/pyinstaller · GitHub and here: PyPlot Crashing Mac OS 10.14.6 · Issue #454 · JuliaPy/PyPlot.jl · GitHub .
Unfortunately there is not much else we can do since this seems to be independent of KNIME.

Marcel

system · May 27, 2020, 2:26am

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