Windows: "PyEval_RestoreThread: NULL tstate" in tkinter example #535
Description
Steps to reproduce:
- Windows 10, Python 3.7.3 64bit, Tk 8.6.9, CEF Python 66
- Start the tkinter_.py example
- Click anywhere in the url_entry box
- Click anywhere on the webpage
I have tested this on two machines (same software versions). 100% reproducible for me so far. Doesn't matter when during execution this happens, even after using the browser for a while if you repeat steps 3 and 4 it will crash.
[tkinter_.py] CEF Python 66.0
[tkinter_.py] Python 3.7.3 64bit
[tkinter_.py] Tk 8.6.9
DevTools listening on ws://127.0.0.1:52580/devtools/browser/d3aa4707-2545-4c15-b260-80fd93f91746
Fatal Python error: PyEval_RestoreThread: NULL tstate
Current thread 0x00001da0 (most recent call first):
File "C:\Users\ryana\AppData\Local\Programs\Python\Python37\lib\tkinter\__init__.py", line 1283 in mainloop
File "tkinter_.py", line 60 in main
File "tkinter_.py", line 385 in <module>