kochat in use RuntimeError: main thread is not in main loop

Question

kochat is a Korean chatbot, and I ran into a problem while practicing it. github imformation : https://github.com/hyunwoongko/kochat

It is environment setting

1. python3.8
2. pip install kochat
3. JPype is reinstalled ues JPype1-1.2.0-cp38-cp38-win_amd64.whl <-download
4. pytorch is same ver with cuda 11.1

start code

### from kochat.proc import DistanceClassifier ###
from kochat.data import Dataset
from kochat.proc import GensimEmbedder, DistanceClassifier
from kochat.model import intent, embed
from kochat.loss import CenterLoss


dataset = Dataset(ood=True)

emb = GensimEmbedder(model=embed.Word2Vec())

# 프로세서 생성
clf = DistanceClassifier(
    model=intent.CNN(dataset.intent_dict),
    loss=CenterLoss(dataset.intent_dict)
)

# 되도록이면 DistanceClassifier는 Margin 기반의 Loss 함수를 이용해주세요
# 현재는 CenterLoss, COCOLoss, Cosface, GausianMixture 등의
# 거리기반 Metric Learning 전용 Loss함수를 지원합니다.


# 모델 학습
clf.fit(dataset.load_intent(emb))

# 모델 추론 (인텐트 분류)
clf.predict(dataset.load_predict("오늘 서울 날씨 어떨까", emb))

error message

C:\projectkyc\kochat3.8\Scripts\python.exe "C:/projectkyc/kochat3.8/test3.8/!from kochat.proc import DistanceClassifier.py"`enter code here`
Exception ignored in: <function Image.__del__ at 0x000001E7E1566D30>
Traceback (most recent call last):
  File "c:\users\user\appdata\local\programs\python\python38\lib\tkinter\__init__.py", line 4014, in __del__
Exception ignored in: <function Variable.__del__ at 0x000001E7E154B430>
Traceback (most recent call last):
  File "c:\users\user\appdata\local\programs\python\python38\lib\tkinter\__init__.py", line 351, in __del__
    if self._tk.getboolean(self._tk.call("info", "exists", self._name)):
RuntimeError: main thread is not in main loop
Exception ignored in: <function Image.__del__ at 0x000001E7E1566D30>
Traceback (most recent call last):
  File "c:\users\user\appdata\local\programs\python\python38\lib\tkinter\__init__.py", line 4014, in __del__
    self.tk.call('image', 'delete', self.name)
RuntimeError: main thread is not in main loop
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  Internal Error (os_windows_x86.cpp:144), pid=11208, tid=0x00000000000037f4
#  guarantee(result == EXCEPTION_CONTINUE_EXECUTION) failed: Unexpected result from topLevelExceptionFilter
#
# JRE version: Java(TM) SE Runtime Environment (8.0_281-b09) (build 1.8.0_281-b09)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.281-b09 mixed mode windows-amd64 compressed oops)
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\projectkyc\kochat3.8\test3.8\hs_err_pid11208.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
Exception ignored in: <function Image.__del__ at 0x000001E7E1566D30>
Traceback (most recent call last):
  File "c:\users\user\appdata\local\programs\python\python38\lib\tkinter\__init__.py", line 4014, in __del__
    self.tk.call('image', 'delete', self.name)
RuntimeError: main thread is not in main loop
Tcl_AsyncDelete: async handler deleted by the wrong thread

Process finished with exit code 1

If I haven't posted it or if I have the information I need, I will add it immediately upon confirmation if requested.

Answer 1

This is such an annoying issue and to me setting matplotlib.use('Agg') does not cut it. I dont want to comprise on this.

The only thing that seems to do it somewhat consistently is having to close the figure before creating a new plot via plt.close(). This is annoying and if i forget it does this.

Answer 2

this error

Matplotlib - Tcl_AsyncDelete: async handler deleted by the wrong thread?

same Question But did not know where to apply

The places to apply are kochat\utils\visualizer.py and kochat\proc\utils\visualizer.py to be. In the

from matplotlib import pyplot as plt

part of these two places,

import matplotlib
matplotlib.use('Agg')
from matplotlib import pyplot as plt

The problem is solved.