GNU bug report logs - #46294
python-arrow timezone test failure

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Efraim Flashner <efraim <at> flashner.co.il>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#46294: closed (python-arrow timezone test failure)
Date: Mon, 08 Feb 2021 08:04:02 +0000

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Your message dated Mon, 8 Feb 2021 10:02:49 +0200
with message-id <YCDwKRCUj8BoOM0y <at> 3900XT>
and subject line Re: bug#46294: python-arrow timezone test failure
has caused the debbugs.gnu.org bug report #46294,
regarding python-arrow timezone test failure
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
46294: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=46294
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From: Guillaume Le Vaillant <glv <at> posteo.net>
To: bug-guix <at> gnu.org
Subject: python-arrow timezone test failure
Date: Thu, 04 Feb 2021 13:47:59 +0100

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Hi,

The python-arrow package currently fails to build because the
"test_parse_tz_name_zzz" test is failing.
This is with Guix at eae865c134ebb8b7432572288e8721794d6a9b87.
I'm not very familiar with Python, so does someone know how to fix this?


Here's the relevant part of the build log:

--8<---------------cut here---------------start------------->8---
_________ TestDateTimeParserParse.test_parse_tz_name_zzz[America/Nuuk] _________

self = <tests.test_parser.TestDateTimeParserParse object at 0x7ffff3e0d220>
full_tz_name = 'America/Nuuk'

    @pytest.mark.parametrize("full_tz_name", make_full_tz_list())
    def test_parse_tz_name_zzz(self, full_tz_name):
    
        self.expected = datetime(2013, 1, 1, tzinfo=tz.gettz(full_tz_name))
>       assert (
            self.parser.parse("2013-01-01 {}".format(full_tz_name), "YYYY-MM-DD ZZZ")
            == self.expected
        )

tests/test_parser.py:347: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
arrow/parser.py:244: in parse
    self._parse_token(token, value, parts)
arrow/parser.py:397: in _parse_token
    parts["tzinfo"] = TzinfoParser.parse(value)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

cls = <class 'arrow.parser.TzinfoParser'>, tzinfo_string = 'America/Nuuk'

    @classmethod
    def parse(cls, tzinfo_string):
    
        tzinfo = None
    
        if tzinfo_string == "local":
            tzinfo = tz.tzlocal()
    
        elif tzinfo_string in ["utc", "UTC", "Z"]:
            tzinfo = tz.tzutc()
    
        else:
    
            iso_match = cls._TZINFO_RE.match(tzinfo_string)
    
            if iso_match:
                sign, hours, minutes = iso_match.groups()
                if minutes is None:
                    minutes = 0
                seconds = int(hours) * 3600 + int(minutes) * 60
    
                if sign == "-":
                    seconds *= -1
    
                tzinfo = tz.tzoffset(None, seconds)
    
            else:
                tzinfo = tz.gettz(tzinfo_string)
    
        if tzinfo is None:
>           raise ParserError(
                'Could not parse timezone expression "{}"'.format(tzinfo_string)
            )
E           arrow.parser.ParserError: Could not parse timezone expression "America/Nuuk"

arrow/parser.py:592: ParserError
--8<---------------cut here---------------end--------------->8---

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From: Efraim Flashner <efraim <at> flashner.co.il>
To: Guillaume Le Vaillant <glv <at> posteo.net>
Cc: 46294-done <at> debbugs.gnu.org
Subject: Re: bug#46294: python-arrow timezone test failure
Date: Mon, 8 Feb 2021 10:02:49 +0200

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On Thu, Feb 04, 2021 at 01:47:59PM +0100, Guillaume Le Vaillant wrote:
> Hi,
> 
> The python-arrow package currently fails to build because the
> "test_parse_tz_name_zzz" test is failing.
> This is with Guix at eae865c134ebb8b7432572288e8721794d6a9b87.
> I'm not very familiar with Python, so does someone know how to fix this?

I tracked this down a bit, python-dateutil still has America/Nuuk as
America/Godthab, so any test looking for America/Nuuk is going to fail.
Unfortunately with the number of dependants there's not an easy way to
fix it on master so I think we'll need to skip that test for now.

I've gone ahead and skipped the broken test and added a message to
re-enable it after an update to python-dateutil.

-- 
Efraim Flashner   <efraim <at> flashner.co.il>   אפרים פלשנר
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