ascii3

pandas/core/arrays/_arrow_string_mixins.py

@@ -277,29 +277,11 @@ def _str_isascii(self):
     #     result = pa.array(pylist, type=pa.bool_())
     #     return self._convert_bool_result(result)
 
-    # def _str_isascii(self):
-    #     if isinstance(self, str):
-    #         result = all(ord(char) < 128 for char in self)
-    #         return self._convert_bool_result(result)
-    #     return None
     def _str_isascii(self):
-        pylist = []
-
-        for s in self._pa_array:
-            if s is None:  # Handle None explicitly
-                pylist.append(None)  # Keep None for PyArrow handling
-            elif isinstance(s, str):
-                # Check if the string is ASCII using ord() on each character
-                result = all(ord(char) < 128 for char in s)
-                pylist.append(result)
-            else:
-                pylist.append(None)  # If it's not a string, append None
-
-        # Convert the result back to a PyArrow array with nullable booleans (pa.bool_())
-        result = pa.array(pylist, type=pa.bool_(), mask=[(v is None) for v in pylist])
-
-        # Use _convert_bool_result to process the result
-        return self._convert_bool_result(result)
+        if isinstance(self, str):
+            result = all(ord(char) < 128 for char in self)
+            return self._convert_bool_result(result)
+        return False
 
 
     # def _str_isascii(self):