Hello Ralf,

> python -m pytest test

thanks a lot, would be nice if that would have found it's way into
developers.txt - with all the other stuff one needs to run the tests
correctly. maybe we could make a docker container where everything is
set up correctly to run the tests ?

here is my next patch where only one test in test_liveserver.py fails.

the interesting part is that when i only run the test alone it does not
fail ?

$ LANG="" python -m pytest test/test_liveserver.py
========================== test session starts ===========================
platform linux2 -- Python 2.7.18, pytest-4.6.11, py-1.11.0, pluggy-0.13.1
rootdir: /home/pr/work/projects/5t-roundup/roundup.hg
collected 20 items

test/test_liveserver.py X...................                       [100%]

================= 19 passed, 1 xpassed in 10.23 seconds ==================

when i run all tests, it fails:

test/test_liveserver.py x.................F.  [ 34%]

hmmm ...

i also fixed test_dates.py which did not find the locales, i am not sure
if i do the test setup in the correct way - but as i did not change
anything in roundup.i18n ... did this test work at all ?

regards,
marcus.