dont go through Series

Author: jbrockmendel

pandas/io/stata.py

@@ -344,9 +344,9 @@ def _stata_elapsed_date_to_datetime_vec(dates: Series, fmt: str) -> Series:
     elif fmt.startswith(("%tw", "tw")):
         year = stata_epoch.year + dates // 52
         days = (dates % 52) * 7
-        per_y = (year - 1970)._values.view("Period[Y]")
+        per_y = (year - 1970).array.view("Period[Y]")
         per_d = per_y.asfreq("D", how="S")
-        per_d_shifted = per_d + days
+        per_d_shifted = per_d + days._values
         per_s = per_d_shifted.asfreq("s", how="S")
         conv_dates = per_s.view("M8[s]")
         conv_dates = Series(conv_dates, index=dates.index)