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Code: Alles auswählen

In [38]: array.array("l", range(5))
Out[38]: array('l', [0, 1, 2, 3, 4])

In [39]: a = array.array("l", range(5))

In [40]: a
Out[40]: array('l', [0, 1, 2, 3, 4])

In [41]: import pickle

In [42]: pickle.dumps(a)
Out[42]: "carray\narray\np0\n(S'l'\np1\nS'\\x00\\x00\\x00\\x00\\x01\\x00\\x00\\x
00\\x02\\x00\\x00\\x00\\x03\\x00\\x00\\x00\\x04\\x00\\x00\\x00'\np2\ntp3\nRp4\n.
"

In [43]: stored = pickle.dumps(a)


In [44]: b = pickle.loads(stored)

In [45]: b
Out[45]: array('l', [0, 1, 2, 3, 4])

Code: Alles auswählen

import json

json.dump([1, 2, 3], open("array.json", "w"))
json.load(open("array.json"))
# => [1, 2, 3]

Code: Alles auswählen

In [47]: a = array.array("l", range(5))

In [48]: json.dumps(a)
ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (41, 0))

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)

C:\Programme\Python26\Scripts\<ipython console> in <module>()

C:\Programme\Python26\lib\json\__init__.pyc in dumps(obj, skipkeys, ensure_ascii
, check_circular, allow_nan, cls, indent, separators, encoding, default, **kw)
    228         cls is None and indent is None and separators is None and
    229         encoding == 'utf-8' and default is None and not kw):
--> 230         return _default_encoder.encode(obj)
    231     if cls is None:
    232         cls = JSONEncoder

C:\Programme\Python26\lib\json\encoder.pyc in encode(self, o)
    365         # exceptions aren't as detailed.  The list call should be roughl
y

    366         # equivalent to the PySequence_Fast that ''.join() would do.

--> 367         chunks = list(self.iterencode(o))
    368         return ''.join(chunks)
    369

C:\Programme\Python26\lib\json\encoder.pyc in _iterencode(self, o, markers)
    315                     raise ValueError("Circular reference detected")
    316                 markers[markerid] = o
--> 317             for chunk in self._iterencode_default(o, markers):
    318                 yield chunk
    319             if markers is not None:

C:\Programme\Python26\lib\json\encoder.pyc in _iterencode_default(self, o, marke
rs)
    321
    322     def _iterencode_default(self, o, markers=None):
--> 323         newobj = self.default(o)
    324         return self._iterencode(newobj, markers)
    325

C:\Programme\Python26\lib\json\encoder.pyc in default(self, o)
    342
    343         """
--> 344         raise TypeError(repr(o) + " is not JSON serializable")
    345
    346     def encode(self, o):

TypeError: array('l', [0, 1, 2, 3, 4]) is not JSON serializable