use isascii

maurycy · maurycy · commit 4b62c848bae2 · 2025-08-18T21:17:06.000+02:00
diff --git a/Lib/csv.py b/Lib/csv.py
@@ -382,7 +382,7 @@ def _guess_delimiter(self, data, delimiters):
             for line in data[start:end]:
                 num_lines += 1
                 for char, count in Counter(line).items():
-                    if ord(char) < 127:
+                    if char.isascii():
                         charFrequency[char][count] += 1
 
             for char, counts in charFrequency.items():
