year 0 exists

[doutriaux1]

python -c "import cdtime ; print(cdtime.reltime(-1,'days since 1').tocomp())"

0-12-31 0:0:0.0

BUT

python -c "import cdtime ; print(cdtime.reltime(-1,'days since 0')"

Traceback (most recent call last):
File "", line 1, in
File "/1Tb/miniconda3/envs/jupyter-vcdat/lib/python3.6/site-packages/cdtime/compreltime.py", line 254, in reltime
return _cdtime.reltime(value, units)
ValueError: Invalid relative time units

[durack1]

@doutriaux1 thanks for raising this, I believe I have hit the same problem before..

[github-actions]

Marking issue as stale, since there has been no activity in 30 days.

Unless the issue is updated or the 'stale' tag is removed, this issue will be closed in 7 days.

[durack1]

@jasonb5 this is similar in some ways to #46, and I know that @pochedls has suggested a work around for the issue (so rather than a traceback as above, it works) in CDAT/cdms#334

[jasonb5]

I need to look at the code to get an idea of what changes are required.

I see two viable options going forward:

1. Modify libcdms to support year 0 and display a warning message.
2. Add a flag to cdtime conversion methods to handle this case.

[github-actions]

Marking issue as stale, since there has been no activity in 30 days.

Unless the issue is updated or the 'stale' tag is removed, this issue will be closed in 7 days.