The settings now cause ipython to crash (reason unknown):

Python 3.7.3 (default, Mar 27 2019, 22:11:17)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.4.0 -- An enhanced Interactive Python. Type '?' for help.

Traceback (most recent call last):
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/bin/ipython3", line 11, in <module>
    sys.exit(start_ipython())
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/IPython/__init__.py", line 125, in start_ipython
    return launch_new_instance(argv=argv, **kwargs)
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/traitlets/config/application.py", line 658, in launch_instance
    app.start()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/IPython/terminal/ipapp.py", line 356, in start
    self.shell.mainloop()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py", line 498, in mainloop
    self.interact()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py", line 481, in interact
    code = self.prompt_for_code()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py", line 410, in prompt_for_code
    **self._extra_prompt_options())
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/shortcuts/prompt.py", line 738, in prompt
    return run_sync()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/shortcuts/prompt.py", line 727, in run_sync
    return self.app.run(inputhook=self.inputhook, pre_run=pre_run2)
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/application/application.py", line 709, in run
    return run()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/application/application.py", line 683, in run
    return f.result()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/eventloop/future.py", line 149, in result
    raise self._exception
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/eventloop/coroutine.py", line 90, in step_next
    new_f = coroutine.throw(exc)
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/application/application.py", line 658, in _run_async2
    result = yield f
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/eventloop/coroutine.py", line 86, in step_next
    new_f = coroutine.send(None)
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/application/application.py", line 601, in _run_async
    self._redraw()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/application/application.py", line 444, in _redraw
    self.renderer.render(self, self.layout)
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/renderer.py", line 557, in render
    if (self.style.invalidation_hash() != self._last_style_hash or
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/styles/style.py", line 372, in invalidation_hash
    return tuple(s.invalidation_hash() for s in self.styles)
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/styles/style.py", line 372, in <genexpr>
    return tuple(s.invalidation_hash() for s in self.styles)
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/styles/base.py", line 140, in invalidation_hash
    return (self.get_style() or self._dummy).invalidation_hash()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/styles/base.py", line 140, in invalidation_hash
    return (self.get_style() or self._dummy).invalidation_hash()
  File "/mpcdf/soft/SLE_15/packages/x86_64/anaconda/3/2019.03/lib/python3.7/site-packages/prompt_toolkit/styles/base.py", line 140, in invalidation_hash
    return (self.get_style() or self._dummy).invalidation_hash()
  File "/u/smay/.local/lib/python3.7/site-packages/powerline/renderers/ipython/since_5.py", line 79, in invalidation_hash
    return super(PowerlinePromptStyle, self).invalidation_hash() + 1
TypeError: can only concatenate tuple (not "int") to tuple

If you suspect this is an IPython bug, please report it at:
    https://github.com/ipython/ipython/issues
or send an email to the mailing list at ipython-dev@python.org

You can print a more detailed traceback right now with "%tb", or use "%debug"
to interactively debug it.

Extra-detailed tracebacks for bug-reporting purposes can be enabled via:
    %config Application.verbose_crash=True