o

���ad�@s dd
lZdd�Z
ef
dd�
Zd
S)�Nc
s�f
d
d�}
t�
��
|
�
S)a6

    Decorate func so it's only ever called the first time.

    This decorator can ensure that an expensive or non-idempotent function
    will not be expensive on subsequent calls and is idempotent.

    >>> func = once(lambda a: a+3)
    >>> func(3)
    6
    >>> func(9)
    6
    >>> func('12')
    6
    cs t�d
�s
�|i|
�
�
�_
�j
S)N�always_returns)�hasattrr)�args�kwargs�
�func��7/usr/lib/python3/dist-packages/keyring/util/__init__.py�wrappers



zonce.<locals>.wrapper)�	functools�wraps)rr
rrr	�oncesr
c	cs.�|D]}z|�V
Wq|
y


Yqwd
S)zk
    yield the results of calling each element of callables, suppressing
    any indicated exceptions.
    Nr)�	callables�
exceptions�callablerrr	�suppress_exceptionss�



��r)rr
�	Exceptionrrrrr	�<module>
s