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66 lines
1.8 KiB
Python
66 lines
1.8 KiB
Python
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#
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# Copyright (C) 2017, 2018 Satoru SATOH <ssato @ redhat.com>
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# License: MIT
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#
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r"""Pickle backend:
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- Format to support: Pickle
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- Requirements: It should be available always.
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- pickle/cPickle in python 2 standard library:
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https://docs.python.org/2/library/pickle.html
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- pickle in python 3 standard library:
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https://docs.python.org/3/library/pickle.html
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- Development Status :: 4 - Beta
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- Limitations: The parser cannot load some primitive data such like '' (empty
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string), ' ' (white space) and [] (empty list) as these are because of the
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implementation of :func:`~anyconfig.backend.base.load_with_fn`.
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- Special options: All options of pickle.{load{s,},dump{s,}} should work.
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Changelog:
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.. versionchanged:: 0.9.7
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- Add support of loading primitives other than mapping objects.
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.. versionadded:: 0.8.3
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"""
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from __future__ import absolute_import
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try:
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import cPickle as pickle
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except ImportError:
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import pickle
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import anyconfig.backend.base
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import anyconfig.compat
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if anyconfig.compat.IS_PYTHON_3:
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LOAD_OPTS = ["fix_imports", "encoding", "errors"]
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DUMP_OPTS = ["protocol", "fix_imports"]
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else:
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LOAD_OPTS = []
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DUMP_OPTS = ["protocol"]
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class Parser(anyconfig.backend.base.StringStreamFnParser,
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anyconfig.backend.base.BinaryFilesMixin):
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"""
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Parser for Pickle files.
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"""
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_type = "pickle"
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_extensions = ["pkl", "pickle"]
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_load_opts = LOAD_OPTS
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_dump_opts = DUMP_OPTS
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_allow_primitives = True
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_load_from_string_fn = anyconfig.backend.base.to_method(pickle.loads)
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_load_from_stream_fn = anyconfig.backend.base.to_method(pickle.load)
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_dump_to_string_fn = anyconfig.backend.base.to_method(pickle.dumps)
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_dump_to_stream_fn = anyconfig.backend.base.to_method(pickle.dump)
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# vim:sw=4:ts=4:et:
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