Public bug reported:
I launch
ipython3 --pdb
and then type
import matplotlib.pyplot as plt
1/0
This results in an unending stream of error messages like
QObject: Cannot create children for a parent that is in a different thread.
(Parent is QApplication(0x2e0c560), parent's thread is QThread(0x2b14330),
current thread is QThread(0x7f479c00a660)
making it impossible to see what one is typing or the response.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ipython3 7.13.0-1
ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34
Uname: Linux 5.4.0-33-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jun 17 15:16:30 2020
EcryptfsInUse: Yes
InstallationDate: Installed on 2019-01-24 (510 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
PackageArchitecture: all
SourcePackage: ipython
UpgradeStatus: Upgraded to focal on 2020-06-01 (15 days ago)
** Affects: ipython (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1883964
Title:
pdb debugger in ipython3 unusable due to "QObject: Cannot create
children for a parent that is in a different thread." errors when
using matplotlib
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