Arrow parse negative number relative to epoch on 0.15 not working for strings

[JBKahn]

When we upgraded to the latest version it seems the suggested behaviour for parsing strings doesn't allow it to be a negative value relative to epoch.

In [8]: arrow.get(-1565358758)
Out[8]: <Arrow [1920-05-25T10:07:22+00:00]>

In [9]: arrow.get('-1565358758', 'X')
---------------------------------------------------------------------------
ParserMatchError                          Traceback (most recent call last)
<ipython-input-9-9ca34c371f99> in <module>
----> 1 arrow.get('-1565358758', 'X')

/usr/local/lib/python3.7/site-packages/arrow/api.py in get(*args, **kwargs)
     19     """
     20
---> 21     return _factory.get(*args, **kwargs)
     22
     23

/usr/local/lib/python3.7/site-packages/arrow/factory.py in get(self, *args, **kwargs)
    228             # (str, format) -> parse.
    229             elif isstr(arg_1) and (isstr(arg_2) or isinstance(arg_2, list)):
--> 230                 dt = parser.DateTimeParser(locale).parse(args[0], args[1])
    231                 return self.type.fromdatetime(dt, tzinfo=tz)
    232

/usr/local/lib/python3.7/site-packages/arrow/parser.py in parse(self, datetime_string, fmt)
    214         if match is None:
    215             raise ParserMatchError(
--> 216                 "Failed to match '{}' when parsing '{}'".format(fmt, datetime_string)
    217             )
    218

ParserMatchError: Failed to match 'X' when parsing '-1565358758'

[systemcatch]

Hey @JBKahn looks like we missed this with all the upgrades, thanks for pointing it out.

[JBKahn]

NP, The patch I submitted should resolve this one

[jadchaar]

Hey @JBKahn, we have just released 0.15.1 with this fix. Thanks!