0Ph BddlmZmZddlmZGddZdZdS))update_wrapperwraps) MethodTypec&eZdZdZdZdZddZdS)_AvailableIfDescriptoravImplements a conditional property using the descriptor protocol. Using this class to create a decorator will raise an ``AttributeError`` if check(self) returns a falsey value. Note that if check raises an error this will also result in hasattr returning false. See https://docs.python.org/3/howto/descriptor.html for an explanation of descriptors. cP||_||_||_t||dSN)fncheckattribute_namer)selfr r r s [/var/www/html/test/jupyter/venv/lib/python3.11/site-packages/sklearn/utils/_available_if.py__init__z_AvailableIfDescriptor.__init__s0 , tR     cdt|jdt|j} ||}n"#t$r}t ||d}~wwxYw|st |dS)NzThis z has no attribute )repr__name__r r ExceptionAttributeError)r objowner attr_err_msg check_resultes r_checkz_AvailableIfDescriptor._checks WD(( W WDAT.out1s4 DG5 111tw////r)rrr r)r rrr!s` ` r__get__z_AvailableIfDescriptor.__get__'sm ? KK5K ) ) )TWc**CC 47^^ 0 0 0 0 0^ 0 rr )r __module__ __qualname____doc__rrr"rrrrsP!!! / / /rrcfdS)aAn attribute that is available only if check returns a truthy value. Parameters ---------- check : callable When passed the object with the decorated method, this should return a truthy value if the attribute is available, and either return False or raise an AttributeError if not available. Returns ------- callable Callable makes the decorated method available if `check` returns a truthy value, otherwise the decorated method is unavailable. Examples -------- >>> from sklearn.utils.metaestimators import available_if >>> class HelloIfEven: ... def __init__(self, x): ... self.x = x ... ... def _x_is_even(self): ... return self.x % 2 == 0 ... ... @available_if(_x_is_even) ... def say_hello(self): ... print("Hello") ... >>> obj = HelloIfEven(1) >>> hasattr(obj, "say_hello") False >>> obj.x = 2 >>> hasattr(obj, "say_hello") True >>> obj.say_hello() Hello c2t||jS)N)r )rr)r r s rzavailable_if..`s,Rr{SSSrr&)r s`r available_ifr*9sN T S S SSrN) functoolsrrtypesrrr*r&rrr-sx,+++++++........b'T'T'T'T'Tr