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Merge pull request #929 from juliantaylor/multiline-history...
Merge pull request #929 from juliantaylor/multiline-history some readline multiline-history fixes and tests * fixes crash when readline is absent (#911) * do not save input from e.g. raw_input in history * do not add empty or duplicate entries lines to the history. * add tests for _replace_rlhist_multiline * protect pyreadline from some incorrect assumptions of equivalence to regular readline closes gh-911

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nbjson.py
63 lines | 1.7 KiB | text/x-python | PythonLexer
"""Read and write notebooks in JSON format.
Authors:
* Brian Granger
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2008-2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from .nbbase import from_dict
from .rwbase import NotebookReader, NotebookWriter, restore_bytes
import json
#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------
class BytesEncoder(json.JSONEncoder):
"""A JSON encoder that accepts b64 (and other *ascii*) bytestrings."""
def default(self, obj):
if isinstance(obj, bytes):
return obj.decode('ascii')
return json.JSONEncoder.default(self, obj)
class JSONReader(NotebookReader):
def reads(self, s, **kwargs):
nb = json.loads(s, **kwargs)
nb = self.to_notebook(nb, **kwargs)
return nb
def to_notebook(self, d, **kwargs):
return restore_bytes(from_dict(d))
class JSONWriter(NotebookWriter):
def writes(self, nb, **kwargs):
kwargs['cls'] = BytesEncoder
kwargs['indent'] = 4
kwargs['sort_keys'] = True
return json.dumps(nb, **kwargs)
_reader = JSONReader()
_writer = JSONWriter()
reads = _reader.reads
read = _reader.read
to_notebook = _reader.to_notebook
write = _writer.write
writes = _writer.writes