Exceptions

The library raises built-in Python exceptions and one of its own, FormNotFoundError, a subclass of LookupError. It is available from rumorph.

Exception	Built-in class	When it is raised
FormNotFoundError	LookupError	The lexeme has no form with the requested features (inflect) or no form that agrees with the number, or the word does not agree with numbers (agree)
ValueError	-	The feature or the value is not in the dictionary (inflect); the number is infinite or NaN (agree); the file is not a ruMorph dictionary or is damaged (Analyzer)
TypeError	-	An argument of the wrong type: a word or a feature value that is not a string, a number argument that is not a number, a dictionary path that is neither a string nor PathLike, a string instead of a collection of words (analyze_many, lemmatize)
FileNotFoundError	OSError	The dictionary file does not exist (Analyzer)
PermissionError, IsADirectoryError and others	OSError	The dictionary file cannot be read (Analyzer)

Exception messages are in Russian.

CodeResult

from rumorph import Analyzer, FormNotFoundError

morph = Analyzer()
try:
    morph.analyze("молоко")[0].agree(5)
except FormNotFoundError as e:
    print(type(e).__name__, isinstance(e, LookupError))
try:
    morph.analyze("кошка")[0].inflect(Case="Genitive")
except ValueError as e:
    print(e)

FormNotFoundError True
Неизвестное значение признака Case: Genitive; есть Acc, Dat, Gen, Ins, Loc, Nom, Par, Voc