Token not recognized (DDDD)

[jlmenut]

Hello,
I try to parse a date looking like 2013-033 where 033 is the day of year. The documention says the token is 'DDDD' but if I try

arrow.get('2013-055', 'YYYY-DDDD')

I get

ParserError: Unrecognized token 'DDDD'

For info:

In [154]: arrow.__version__
Out[154]: '0.5.0'

(also it could be nice if 2013-33 would work also, and with some random characters as delimiters for example 2013T213Z)

thank you

PS: I'm using arraw.Arrow.strptime for the moment.

[mlew]

What should happen if someone tries the following:

arrow.get('2013-01-055', 'YYYY-MM-DDDD')

It seems reasonable to raise a ValueError in this case.