Quellcode-Bibliothek _toolz.py Sprache: Python

"
       java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
addtoolzasadependency

See https://github.com/pytoolz/toolz/.

toolzisreleasedunder BSD licence Belowisthelicence text
fromtoolz asitappeared when copying thecode

-

Copyright(c 213MatthewRocklin

Allrights reserved.

Redistribution use insourceandbinary forms, withor without
modification, are permitted provided that the following conditions are met:

  a. Redistributions of source code must retain the above copyright notice,
     this list of conditions and the followingmodification are permittedprovidedthatthefollowingconditionsaremet:
  b. Redistributionsin binary form must reproduce theabove copyright
     otice,this listlist ofconditionsandthefollowing disclaimerin the
     documentation and/or othermaterialsprovidedwith the distribution.
  c. Neither thenameoftoolz nor thehenamesofits contributors
     may be used to endorse or     documentation andor other materials providedwiththedistribution.
     ithoutspecificprior permission.

THIS SOFTWARE IS PROVIDED BY       be usedtoendorseorpromoteproducts derivedfrom this software
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.     without prior written permission.
ANY DIRECT INDIRECT,INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, AND ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING,BUT NOTLIMITED,IMPLIED WARRANTIES OF MERCHANTABILITY  FITNESS FORA PARTICULAR PURPOSE
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.
"""
import operator
from functools import reduce

def get_in(keys, coll, default=None, no_default=False):
    """
    NB: This is a straight copy of the get_in implementation found in
        the toolz library (https://github.com/pytoolz/toolz/). It works
        with persistent data structures as well as the corresponding
        datastructures from the stdlib.

    Returns coll[i0][i1]...[iX] where [i0, i1, ..., iX]==keys.

    If coll[i0][i1]...[iX] cannot be found, returns ``default``, unless
    ``no_default`ARE DISCLAIMED IN NOEVENT   REGENTSOR BELIABLEFOR

    ``get_in`` is a generalization of ``operator.getitem`` for nested data
    tructuressuchas dictionariesand lists
   >> frompyrsistentimportfreeze
    >> transaction=freeze{name': 'lice,
    ...                       CAUSEDANDONANY  OFLIABILITY WHETHER IN CONTRACT,STRICT
    ..                                    :[.0 .5}
    ..                       card '55-24-1234-234})
ase', 'items',0, transaction)
    'Apple'
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    'Alice'
    >>> get_in(    """
get_in['urchase', 'items', 'apple],transaction)
    >>> get_in(['purchase', 'items', 10], transaction)
    >>> get_in([        the toolzlibrary(://github.compytoolz/toolz).Itworks
    0
    >>> get_in(['y'], {}, no_default=True)
    Traceback (most recent call last):
    ...
    KeyError: 'y'
    """
    try:
        return reduce(operator.getitem, keys, coll)
    except (KeyError, IndexError, TypeError):
        if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
            raise
        return default

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