ImportError: cannot import name 'QtChart' from 'PyQt5' / Qprinter crashes

[Florian Bruhin]

On Thu, Jul 23, 2020 at 07:46:05PM +0200, hjm wrote:
> I've tested a script to use QPrinter and this ended up with Process finished
> with exit code -1073740791 (0xC0000409) unable to debug (for me).
> 
> from PyQt5import QtPrintSupport
> myprinter= QtPrintSupport.QPrinter ()

You most likely need to create a QApplication before using QPrinter.

> After that I got an import error also frpm another script which contains
> 
> from PyQt5import QtChart
> 
> ImportError: cannot import name 'QtChart' from 'PyQt5'
> (C:\Users\myname\IR-Check_Tablet\lib\site-packages\PyQt5\__init__.py).
> 
> The files are installed, I have a directory with lot of files (53) called
> c:\Program Files\Python37\Lib\site-packages\PyQt5\bindings\QtChart\

Those paths are different. It looks like you have two PyQt5 installs now, one
in C:\Users\myname\IR-Check_Tablet\ (without QtChart) and one in c:\Program
Files\Python37 (with QtChart). According to the ImportError, you're using the
former.

Florian

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