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Default to using system zoneinfo if available #303

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Merged
merged 1 commit into from
Mar 31, 2025
Merged

Default to using system zoneinfo if available #303

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7 changes: 5 additions & 2 deletions pydantic_extra_types/timezone_name.py
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Original file line number Diff line number Diff line change
Expand Up @@ -44,8 +44,11 @@ def _warn_about_pytz_usage() -> None:

def get_timezones() -> set[str]:
"""Determine the timezone provider and return available timezones."""
if _is_available('zoneinfo') and _is_available('tzdata'): # pragma: no cover
return _tz_provider_from_zone_info()
if _is_available('zoneinfo'): # pragma: no cover
timezones = _tz_provider_from_zone_info()
if len(timezones) == 0: # pragma: no cover
raise ImportError('No timezone provider found. Please install tzdata with "pip install tzdata"')
return timezones
elif _is_available('pytz'): # pragma: no cover
return _tz_provider_from_pytz()
else: # pragma: no cover
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