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import argparse
import yaml
try:
import pycountry
except ModuleNotFoundError:
raise Exception(
"`pycountry` is required for generating translation task prompt templates. \
please install pycountry via pip install lm-eval[multilingual] or pip install -e .[multilingual]",
)
# Different translation benchmarks included in the library. Mostly WMT.
# These correspond to dataset names (subsets) on HuggingFace for each dataset.
# A yaml file is generated by this script for each language pair.
gpt3_translation_benchmarks = {
"wmt14": ["fr-en"], # ["en-fr", "fr-en"], # French
"wmt16": [
"ro-en",
"de-en",
], # ["en-ro", "ro-en", "de-en", "en-de"], # German, Romanian
}
# 28 total
LANGUAGES = {
**gpt3_translation_benchmarks,
# "wmt20": sacrebleu.get_langpairs_for_testset("wmt20"),
"iwslt2017": ["en-ar"], # Arabic
}
def code_to_language(code):
# key is alpha_2 or alpha_3 depending on the code length
language_tuple = pycountry.languages.get(**{f"alpha_{len(code)}": code})
return language_tuple.name
def gen_lang_yamls(output_dir: str, overwrite: bool) -> None:
"""
Generate a yaml file for each language.
:param output_dir: The directory to output the files to.
:param overwrite: Whether to overwrite files if they already exist.
"""
err = []
for lang in LANGUAGES.keys():
for dataset_name in LANGUAGES[lang]:
src_lang, _, tgt_lang = dataset_name.partition("-")
for src, tgt in [[src_lang, tgt_lang], [tgt_lang, src_lang]]:
# both translation directions for each lang pair
lang_pair = src + "-" + tgt
file_name = f"{lang}_{lang_pair}.yaml"
try:
source, target = code_to_language(src), code_to_language(tgt)
groups = ["generate_until", "translation", lang]
if lang in gpt3_translation_benchmarks.keys():
groups += ["gpt3_translation_benchmarks"]
with open(
f"{output_dir}/{file_name}",
"w" if overwrite else "x",
encoding="utf8",
) as f:
f.write("# Generated by utils.py\n")
yaml.dump(
{
"include": "wmt_common_yaml",
"group": groups,
"dataset_path": lang,
"dataset_name": dataset_name
if not (lang == "iwslt2017")
else "iwslt2017-" + dataset_name,
"task": f"{lang}-{lang_pair}",
"doc_to_text": f"{source} phrase: "
+ "{{translation["
+ f'"{src}"'
+ "]}}\n"
+ f"{target} phrase:",
"doc_to_target": " {{"
+ "translation["
+ f'"{tgt}"]'
+ "}}",
},
f,
)
except FileExistsError:
err.append(file_name)
if len(err) > 0:
raise FileExistsError(
"Files were not created because they already exist (use --overwrite flag):"
f" {', '.join(err)}"
)
def main() -> None:
"""Parse CLI args and generate language-specific yaml files."""
parser = argparse.ArgumentParser()
parser.add_argument(
"--overwrite",
default=False,
action="store_true",
help="Overwrite files if they already exist",
)
parser.add_argument(
"--output-dir", default=".", help="Directory to write yaml files to"
)
args = parser.parse_args()
gen_lang_yamls(output_dir=args.output_dir, overwrite=args.overwrite)
if __name__ == "__main__":
main()
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