DOC: Fix ES01 for pandas.Period.year

tuhinsharma121 · tuhinsharma121 · commit 068b6764dbfe · 2026-01-30T14:39:49.000+05:30
diff --git a/pandas/_libs/tslibs/period.pyx b/pandas/_libs/tslibs/period.pyx
@@ -2132,6 +2132,9 @@ cdef class _Period(PeriodMixin):
         """
         Return the year this Period falls on.
 
+        The year is derived from the internal representation of the Period
+        based on its ordinal value and frequency.
+
         Returns
         -------
         int
