def get_messages(language, messagefiles, fallback="eng", fileformat="json"):
"""Get a dict with message-name: value for a language based on file. Default to english version if missing.
Args:
language (str): language to load
messagefiles (str): path to messages. Example: /path/{}
fallback (str): fallback language if requested is missing messages. Default: 'eng'
fileformat (str): filetype. Default: json
Returns:
dict: message-name: value for each detected message
Raises:
ValueError: 'language' parameter does not match a valid language with a file.
"""
available_lang_codes = get_available_languages(messagefiles,
fileformat=fileformat)
with open(f'{messagefiles.rstrip("/")}/{fallback}.{fileformat}',
"r") as messagefileeng:
messages = loads(messagefileeng.read())
if language in available_lang_codes:
if language != fallback:
with open(
f'{messagefiles.rstrip("/")}/{language}.{fileformat}',
"r") as messagefilelangs:
filedata = loads(messagefilelangs.read())
for message in filedata.keys():
messages[message] = filedata[message]
else:
raise ValueError("Language is not available")
return messages
def test_get_available_not_on_non_lang_trailing():
"""Check langlist does not include incorrect language."""
langlist = get_available_languages(LANGDIRTRAIL)
assert "aaj" not in langlist
def test_get_available_not_on_missing_trailing():
"""Check langlist does not include missing file."""
langlist = get_available_languages(LANGDIRTRAIL)
assert "aaa" not in langlist
def test_get_available_languages_exists_trailing():
"""Check langlist includes valid file."""
langlist = get_available_languages(LANGDIRTRAIL)
assert "eng" in langlist