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1 | 1 | """Base classes for the notebook conversion pipeline. |
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2 | 2 | |
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3 | 3 | This module defines Converter, from which all objects designed to implement |
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4 | 4 | a conversion of IPython notebooks to some other format should inherit. |
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5 | 5 | """ |
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6 | 6 | #----------------------------------------------------------------------------- |
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7 | 7 | # Copyright (c) 2012, the IPython Development Team. |
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8 | 8 | # |
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9 | 9 | # Distributed under the terms of the Modified BSD License. |
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10 | 10 | # |
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11 | 11 | # The full license is in the file COPYING.txt, distributed with this software. |
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12 | 12 | #----------------------------------------------------------------------------- |
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13 | 13 | |
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14 | 14 | #----------------------------------------------------------------------------- |
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15 | 15 | # Imports |
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16 | 16 | #----------------------------------------------------------------------------- |
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17 | 17 | |
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18 | 18 | from __future__ import print_function, absolute_import |
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19 | 19 | |
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20 | 20 | # Stdlib imports |
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21 | import jinja2 | |
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22 | import codecs | |
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23 | 21 | import io |
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24 | import logging | |
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25 | 22 | import os |
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26 | 23 | from IPython.utils import path |
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27 | import pprint | |
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28 | import re | |
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29 | from types import FunctionType | |
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30 | 24 | |
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31 |
from jinja2 import Environment, |
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25 | from jinja2 import Environment, FileSystemLoader | |
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32 | 26 | env = Environment( |
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33 | 27 | loader=FileSystemLoader('./templates/'), |
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34 | 28 | extensions=['jinja2.ext.loopcontrols'] |
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35 | 29 | ) |
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36 | 30 | |
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37 | 31 | # IPython imports |
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38 | 32 | from IPython.nbformat import current as nbformat |
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39 |
from IPython.config.configurable import Configurable |
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40 |
from IPython.utils.traitlets import ( |
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41 | Any) | |
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33 | from IPython.config.configurable import Configurable | |
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34 | from IPython.utils.traitlets import ( Unicode, Any) | |
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42 | 35 | |
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43 | 36 | # Our own imports |
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44 | 37 | from IPython.utils.text import indent |
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45 | 38 | from .utils import remove_ansi |
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46 | 39 | from markdown import markdown |
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47 | from .utils import highlight,ansi2html | |
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40 | from .utils import highlight, ansi2html | |
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48 | 41 | #----------------------------------------------------------------------------- |
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49 | 42 | # Class declarations |
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50 | 43 | #----------------------------------------------------------------------------- |
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51 | 44 | def rm_fake(strng): |
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52 | 45 | return strng.replace('/files/', '') |
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53 | 46 | |
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54 | 47 | class ConversionException(Exception): |
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55 | 48 | pass |
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56 | 49 | |
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57 | 50 | |
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58 | 51 | def python_comment(string): |
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59 | 52 | return '# '+'\n# '.join(string.split('\n')) |
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60 | 53 | |
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61 | 54 | |
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62 | 55 | |
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63 | 56 | def header_body(): |
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94 | ||
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95 | inlining= {} | |
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57 | """Return the body of the header as a list of strings.""" | |
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58 | ||
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59 | from pygments.formatters import HtmlFormatter | |
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60 | ||
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61 | header = [] | |
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62 | static = os.path.join(path.get_ipython_package_dir(), | |
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63 | 'frontend', 'html', 'notebook', 'static', | |
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64 | ) | |
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65 | here = os.path.split(os.path.realpath(__file__))[0] | |
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66 | css = os.path.join(static, 'css') | |
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67 | for sheet in [ | |
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68 | # do we need jquery and prettify? | |
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69 | # os.path.join(static, 'jquery', 'css', 'themes', 'base', | |
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70 | # 'jquery-ui.min.css'), | |
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71 | # os.path.join(static, 'prettify', 'prettify.css'), | |
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72 | os.path.join(css, 'boilerplate.css'), | |
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73 | os.path.join(css, 'fbm.css'), | |
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74 | os.path.join(css, 'notebook.css'), | |
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75 | os.path.join(css, 'renderedhtml.css'), | |
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76 | # our overrides: | |
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77 | os.path.join(here, '..', 'css', 'static_html.css'), | |
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78 | ]: | |
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79 | ||
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80 | with io.open(sheet, encoding='utf-8') as f: | |
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81 | s = f.read() | |
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82 | header.append(s) | |
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83 | ||
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84 | pygments_css = HtmlFormatter().get_style_defs('.highlight') | |
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85 | header.append(pygments_css) | |
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86 | return header | |
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87 | ||
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88 | inlining = {} | |
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96 | 89 | inlining['css'] = header_body() |
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97 | 90 | |
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98 | 91 | |
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99 | 92 | def filter_data_type(output): |
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100 | for fmt in ['html', 'pdf', 'svg', 'latex','png', 'jpg','jpeg' , 'text']: | |
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93 | for fmt in ['html', 'pdf', 'svg', 'latex', 'png', 'jpg', 'jpeg' , 'text']: | |
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101 | 94 | if fmt in output: |
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102 | 95 | return [fmt] |
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103 | 96 | |
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104 | 97 | |
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105 | 98 | env.filters['filter_data_type'] = filter_data_type |
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106 | 99 | env.filters['pycomment'] = python_comment |
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107 | 100 | env.filters['indent'] = indent |
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108 | 101 | env.filters['rm_fake'] = rm_fake |
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109 | 102 | env.filters['rm_ansi'] = remove_ansi |
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110 | 103 | env.filters['markdown'] = markdown |
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111 | 104 | env.filters['highlight'] = highlight |
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112 | 105 | env.filters['ansi2html'] = ansi2html |
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113 | 106 | |
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114 | 107 | class ConverterTemplate(Configurable): |
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115 | 108 | |
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116 | 109 | display_data_priority = ['pdf', 'svg', 'png', 'jpg', 'text'] |
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117 | 110 | #------------------------------------------------------------------------- |
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118 | 111 | # Instance-level attributes that are set in the constructor for this |
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119 | 112 | # class. |
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120 | 113 | #------------------------------------------------------------------------- |
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121 | 114 | infile = Any() |
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122 | 115 | |
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123 | 116 | |
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124 | 117 | infile_dir = Unicode() |
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125 | 118 | |
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126 | 119 | def __init__(self, tplfile='fullhtml', config=None, **kw): |
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127 | 120 | self.template = env.get_template(tplfile+'.tpl') |
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128 | super(ConverterTemplate,self).__init__(config=config) | |
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129 | ||
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130 | def _get_prompt_number(self, cell): | |
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131 | return cell.prompt_number if hasattr(cell, 'prompt_number') \ | |
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132 | else self.blank_symbol | |
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133 | ||
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121 | self.nb = None | |
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122 | super(ConverterTemplate, self).__init__(config=config, **kw) | |
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134 | 123 | |
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135 | 124 | def process(self): |
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136 | 125 | converted_cells = [] |
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137 | 126 | for worksheet in self.nb.worksheets: |
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138 | 127 | for cell in worksheet.cells: |
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139 | 128 | cell.type = cell.cell_type |
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140 | 129 | cell.haspyout = False |
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141 | for out in cell.get('outputs',[]): | |
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130 | for out in cell.get('outputs', []): | |
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142 | 131 | if out.output_type == 'pyout': |
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143 | 132 | cell.haspyout = True |
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144 | 133 | break |
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145 | 134 | converted_cells.append(worksheet) |
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146 | 135 | |
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147 | 136 | return converted_cells |
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148 | 137 | |
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149 |
def convert(self |
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138 | def convert(self): | |
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150 | 139 | """ convert the ipynb file |
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151 | 140 | |
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152 | 141 | return both the converted ipynb file and a dict containing potential |
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153 | 142 | other resources |
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154 | 143 | """ |
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155 | return self.template.render(worksheets=self.process(), inlining=inlining),{} | |
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144 | return self.template.render(worksheets=self.process(), inlining=inlining), {} | |
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156 | 145 | |
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157 | 146 | |
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158 | 147 | def read(self, filename): |
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159 | 148 | "read and parse notebook into NotebookNode called self.nb" |
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160 | 149 | with io.open(filename) as f: |
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161 | 150 | self.nb = nbformat.read(f, 'json') |
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162 | 151 |
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