I find the following post really help. https://stackoverflow.com/questions/43534784/pyqtgraph-in-anaconda-produces-frozen-crashed-python-window?rq=1
"If you want interactive plotting then first type %gui qt in IPython (i.e. Jupyter or PyQt Console). This will enable GUI event loop integration <http://ipython.readthedocs.io/en/5.x/interactive/magics.html#magic-gui>. In the past PyQT could do this by itself but I don't know if it still can, so I would just use IPython for this – titusjan <https://stackoverflow.com/users/625350/titusjan> Apr 22 '17 at 11:31 <https://stackoverflow.com/questions/43534784/pyqtgraph-in-anaconda-produces-frozen-crashed-python-window?rq=1#comment74168445_43534784> " On Monday, October 7, 2019 at 12:41:12 PM UTC+8, Ted Zeng wrote: > > Yes, the following works, Thanks. > > On Sunday, October 6, 2019 at 12:10:31 AM UTC+8, Kenneth Lyons wrote: >> >> Note that GraphicsWindow is deprecated in favor of GraphicsLayoutWidget, >> but in any case, you'll need to make sure you show the window. In addition, >> unless you're running this code in an interactive environment (e.g. the >> Python/IPython REPL or running a script with the -i flag), you also need to >> run the Qt event loop at the end. Does the following work? >> >> import pyqtgraph as pg >> gw = pg.GraphicsWindow() >> gw.show() >> pg.mkQApp().exec_() >> >> The documentation here is incomplete but may be helpful: >> http://pyqtgraph.org/documentation/qtcrashcourse.html >> >> On Thursday, October 3, 2019 at 11:08:02 AM UTC-7, Ted Zeng wrote: >>> >>> when I use the following code, the graph crashed. >>> >>> import pyqtgraph as pg >>> win = pg.GraphicsWindow() >>> >>> However, when I run the examples, it works. >>> >>> import pyqtgraph.examples >>> pyqtgraph.examples.run() >>> >>> >>> My system configure: >>> windows 10, 64 >>> python 3.7 >>> pyqtgraph-0.10.0.win-amd64.exe >>> <http://pyqtgraph.org/downloads/0.10.0/pyqtgraph-0.10.0.win-amd64.exe> >>> >>> >>> I also find similar bug in this post : >>> https://bugs.launchpad.net/pyqtgraph/+bug/1782302 >>> >>> Pleadse advice me how to solve this problem, thanks >>> >>> Ted >>> >> -- You received this message because you are subscribed to the Google Groups "pyqtgraph" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/pyqtgraph/edfacd55-2435-4eb3-be6b-5e950e22f577%40googlegroups.com.
