File renaming and subfolder generation editor breaks with Python 3.7

[Sebastian Bayer]

When I click the 'Custom...' button in the renaming presets a popup tells me that some error occurred. I'm using Arch and if I remember correctly this happens ever since Python 3.7 is the default Python version. The error seems to be caused by nameeditor.py

Here's the part with the error, full log attached:

2018-09-01 09:28:19 ERROR excepthook.py 67: An unhandled exception occurred
2018-09-01 09:28:19 ERROR excepthook.py 68: Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/raphodo/nameeditor.py", line 397, in find_all
    raise StopIteration
StopIteration

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/raphodo/nameeditor.py", line 407, in highlightBlock
    for index in self.find_all(text, expression):
RuntimeError: generator raised StopIteration

2018-09-01 09:29:11 ERROR excepthook.py 67: An unhandled exception occurred
2018-09-01 09:29:11 ERROR excepthook.py 68: Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/raphodo/nameeditor.py", line 397, in find_all
    raise StopIteration
StopIteration

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/raphodo/nameeditor.py", line 407, in highlightBlock
    for index in self.find_all(text, expression):
RuntimeError: generator raised StopIteration

2018-09-01 09:29:11 ERROR excepthook.py 67: An unhandled exception occurred
2018-09-01 09:29:11 ERROR excepthook.py 68: Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/raphodo/nameeditor.py", line 397, in find_all
    raise StopIteration
StopIteration

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/raphodo/nameeditor.py", line 407, in highlightBlock
    for index in self.find_all(text, expression):
RuntimeError: generator raised StopIteration

[Damon Lynch (dlynch3)]

Thanks for your bug report. Can you please describe in words what you observe when the problem occurs?

[Sebastian Bayer (bayerse)]

Thanks for your quick reaction, highly appreciated.

When I click the button a popup opens saying there is some bug. I can discard it and continue to create a new preset.
The main problem is that the content of the new preset is not saved.

These are the exact steps:
* Choose 'Save New Custom Preset...'
* Enter a name
* Enter a definition
* Save
* Problem occurs: the preset is empty; I cannot use the definition I inserted previously

[Damon Lynch (dlynch3)]

That's helpful, thanks. I'll need to investigate what's new in Python 3.7 (I haven't had a chance to follow it). It may also have something to do with a problem in PyQt 5.11. From initially glancing at it, I cannot say.

[Damon Lynch (dlynch3)]

Assuming you are using the AUR release, I imagine the fix should be coming fairly soon, depending on how often the AUR is updated.

[Sebastian Bayer (bayerse)]

Thanks a lot!