Enforce --write-changes in interactive mode

codespell_lib/_codespell.py

@@ -1126,6 +1126,9 @@ def main(*args: str) -> int:
         for ifile, cfg_file in enumerate(used_cfg_files, start=1):
             print(f"    {ifile}: {cfg_file}")
 
+    if options.interactive > 0:
+        options.write_changes = True
+
     if options.regex and options.write_changes:
         return _usage_error(
             parser,