COMPAT: python-dateutil deprecation warnings #19004
Description
not trivial to actually trigger these, but showing up on some of our appeveyor builds.
pandas\tests\indexes\datetimes\test_arithmetic.py:87:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
pandas\core\indexes\datetimes.py:2138: in date_range
closed=closed, **kwargs)
pandas\util\_decorators.py:123: in wrapper
return func(*args, **kwargs)
pandas\core\indexes\datetimes.py:374: in __new__
ambiguous=ambiguous)
pandas\core\indexes\datetimes.py:509: in _generate
tz = timezones.maybe_get_tz(tz)
pandas\_libs\tslibs\timezones.pyx:93: in pandas._libs.tslibs.timezones.maybe_get_tz
cpdef inline object maybe_get_tz(object tz):
pandas\_libs\tslibs\timezones.pyx:103: in pandas._libs.tslibs.timezones.maybe_get_tz
tz = dateutil_gettz(zone)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
name = 'Asia/Singapore'
def gettz(name):
"""
This retrieves a time zone from the local zoneinfo tarball that is packaged
with dateutil.
:param name:
An IANA-style time zone name, as found in the zoneinfo file.
:return:
Returns a :class:`dateutil.tz.tzfile` time zone object.
.. warning::
It is generally inadvisable to use this function, and it is only
provided for API compatibility with earlier versions. This is *not*
equivalent to ``dateutil.tz.gettz()``, which selects an appropriate
time zone based on the inputs, favoring system zoneinfo. This is ONLY
for accessing the dateutil-specific zoneinfo (which may be out of
date compared to the system zoneinfo).
.. deprecated:: 2.6
If you need to use a specific zoneinfofile over the system zoneinfo,
instantiate a :class:`dateutil.zoneinfo.ZoneInfoFile` object and call
:func:`dateutil.zoneinfo.ZoneInfoFile.get(name)` instead.
Use :func:`get_zonefile_instance` to retrieve an instance of the
dateutil-provided zoneinfo.
"""
warnings.warn("zoneinfo.gettz() will be removed in future versions, "
"to use the dateutil-provided zoneinfo files, instantiate a "
"ZoneInfoFile object and use ZoneInfoFile.zones.get() "
"instead. See the documentation for details.",
> DeprecationWarning)
E DeprecationWarning: zoneinfo.gettz() will be removed in future versions, to use the dateutil-provided zoneinfo files, instantiate a ZoneInfoFile object and use ZoneInfoFile.zones.get() instead. See the documentation for details.
C:\Miniconda3_64\envs\pandas\lib\site-packages\dateutil\zoneinfo\__init__.py:156: DeprecationWarning
_____ TestDatetimeIndexArithmetic.test_dti_isub_int[dateutil/US/Pacific] ______