Use f-strings in csv docs example (python#135245)

ezio-melotti · lkollar · commit b9ce659ea024 · 2025-06-19T22:44:48.000+01:00
diff --git a/Doc/library/csv.rst b/Doc/library/csv.rst
@@ -609,7 +609,7 @@ A slightly more advanced use of the reader --- catching and reporting errors::
            for row in reader:
                print(row)
        except csv.Error as e:
-           sys.exit('file {}, line {}: {}'.format(filename, reader.line_num, e))
+           sys.exit(f'file {filename}, line {reader.line_num}: {e}')
 
 And while the module doesn't directly support parsing strings, it can easily be
 done::
