Merge pull request #963 from xxyzz/doc

Add choices to `--edition` command option

README.md

@@ -381,7 +381,7 @@ The following command-line options can be used to control its operation:
 * --all-languages: extract words for all available languages
 * --language-code LANGUAGE_CODE: extracts the given language (this option may be specified multiple times; defaults to dump file language code and `mul`(Translingual))
 * --language-name LANGUAGE_NAME: Similar to `--language-code` except this option accepts language name
-* --dump-file-language-code LANGUAGE_CODE: specifies the language code for the Wiktionary edition that the dump file is for (defaults to "en"; "zh" is supported and others are being added)
+* --edition LANGUAGE_CODE: specifies the language code for the Wiktionary edition that the dump file is for (defaults to "en"; other supported editions are listed in `-h` help descriptions)
 * --skip-extraction: Used to create a database file from the dump file without waiting for the extraction process to complete.
 * --all: causes all data to be captured for the selected languages
 * --translations: causes translations to be captured

src/wiktextract/wiktwords.py

@@ -109,6 +109,13 @@ def main():
         "--edition",
         type=str,
         default="en",
+        choices=[
+            p.stem
+            for p in (files("wiktextract") / "extractor").iterdir()
+            if p.is_dir()
+            and p.stem != "template"
+            and (p / "models.py").is_file()
+        ],
         help="Language code of the dump file.",
     )
     parser.add_argument(