gh-137976: Exclude symlinks from zoneinfo.available_timezones() results #137977
+27
−1
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Sometimes available_timezones() was including 'localtime' in its results because it wasn't properly handling symlinks.
This change ensures that symlinks like 'localtime' are excluded from the available timezones list, providing consistent results across different systems.
Added a test case to verify that symlinks are properly excluded.