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@@ -1,62 +1,63 b'' | |||
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1 | 1 | """Read and write notebooks in JSON format. |
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2 | 2 | |
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3 | 3 | Authors: |
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4 | 4 | |
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5 | 5 | * Brian Granger |
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6 | 6 | """ |
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7 | 7 | |
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8 | 8 | #----------------------------------------------------------------------------- |
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9 | 9 | # Copyright (C) 2008-2011 The IPython Development Team |
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10 | 10 | # |
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11 | 11 | # Distributed under the terms of the BSD License. The full license is in |
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12 | 12 | # the file COPYING, distributed as part of this software. |
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13 | 13 | #----------------------------------------------------------------------------- |
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14 | 14 | |
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15 | 15 | #----------------------------------------------------------------------------- |
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16 | 16 | # Imports |
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17 | 17 | #----------------------------------------------------------------------------- |
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18 | 18 | |
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19 | 19 | from .nbbase import from_dict |
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20 | 20 | from .rwbase import NotebookReader, NotebookWriter, restore_bytes |
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21 | 21 | import json |
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22 | 22 | |
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23 | 23 | #----------------------------------------------------------------------------- |
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24 | 24 | # Code |
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25 | 25 | #----------------------------------------------------------------------------- |
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26 | 26 | |
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27 | 27 | class BytesEncoder(json.JSONEncoder): |
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28 | 28 | """A JSON encoder that accepts b64 (and other *ascii*) bytestrings.""" |
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29 | 29 | def default(self, obj): |
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30 | 30 | if isinstance(obj, bytes): |
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31 | 31 | return obj.decode('ascii') |
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32 | 32 | return json.JSONEncoder.default(self, obj) |
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33 | 33 | |
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34 | 34 | |
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35 | 35 | class JSONReader(NotebookReader): |
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36 | 36 | |
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37 | 37 | def reads(self, s, **kwargs): |
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38 | 38 | nb = json.loads(s, **kwargs) |
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39 | 39 | nb = self.to_notebook(nb, **kwargs) |
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40 | 40 | return nb |
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41 | 41 | |
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42 | 42 | def to_notebook(self, d, **kwargs): |
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43 | 43 | return restore_bytes(from_dict(d)) |
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44 | 44 | |
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45 | 45 | |
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46 | 46 | class JSONWriter(NotebookWriter): |
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47 | 47 | |
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48 | 48 | def writes(self, nb, **kwargs): |
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49 | 49 | kwargs['cls'] = BytesEncoder |
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50 | 50 | kwargs['indent'] = 4 |
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51 | kwargs['sort_keys'] = True | |
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51 | 52 | return json.dumps(nb, **kwargs) |
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52 | 53 | |
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53 | 54 | |
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54 | 55 | _reader = JSONReader() |
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55 | 56 | _writer = JSONWriter() |
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56 | 57 | |
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57 | 58 | reads = _reader.reads |
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58 | 59 | read = _reader.read |
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59 | 60 | to_notebook = _reader.to_notebook |
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60 | 61 | write = _writer.write |
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61 | 62 | writes = _writer.writes |
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62 | 63 |
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