from typing import Optional
from thinc.api import Model
from ..ru.lemmatizer import RussianLemmatizer
from ...vocab import Vocab
class UkrainianLemmatizer(RussianLemmatizer):
_morph = None
def __init__(
self,
vocab: Vocab,
model: Optional[Model],
name: str = "lemmatizer",
*,
mode: str = "pymorphy2",
overwrite: bool = False,
) -> None:
if mode == "pymorphy2":
try:
from pymorphy2 import MorphAnalyzer
except ImportError:
raise ImportError(
"The Ukrainian lemmatizer mode 'pymorphy2' requires the "
"pymorphy2 library and dictionaries. Install them with: "
"pip install pymorphy2 pymorphy2-dicts-uk"
) from None
if UkrainianLemmatizer._morph is None:
UkrainianLemmatizer._morph = MorphAnalyzer(lang="uk")
super().__init__(vocab, model, name, mode=mode, overwrite=overwrite)
