Live logger error before 'when' is set

[uSpike]

Hi,

The live logger _LiveLoggingStreamHandler will emit messages in emit():

self.stream.section('live log ' + self._when, sep='-', bold=True)

If self._when is None, which may be the case before a test is actually started, this will raise an exception:

TypeError: cannot concatenate 'str' and 'NoneType' objects

I ran into this issue with a plugin I created which emits log messages before the first test starts. It's a pretty simple fix which I'm fine creating a PR for, but what should the text be if self._when is None?

[nicoddemus]

Hi @uSpike, thanks for the report. I believe #3175, already fixes this though, can you give that branch a try?

[uSpike]

@nicoddemus it does seem that #3175 fixes the issue, thanks for linking me to that.

[nicoddemus]

Thanks, but lets keep this open because we don't have an issue to track this bug anyway. 👍

[s0undt3ch]

#3188