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@@ -1,205 +1,211 b'' | |||
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1 | 1 | """ |
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2 | 2 | Module containing single call export functions. |
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3 | 3 | """ |
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4 | 4 | #----------------------------------------------------------------------------- |
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5 | 5 | # Copyright (c) 2013, the IPython Development Team. |
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6 | 6 | # |
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7 | 7 | # Distributed under the terms of the Modified BSD License. |
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8 | 8 | # |
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9 | 9 | # The full license is in the file COPYING.txt, distributed with this software. |
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10 | 10 | #----------------------------------------------------------------------------- |
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11 | 11 | |
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12 | 12 | #----------------------------------------------------------------------------- |
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13 | 13 | # Imports |
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14 | 14 | #----------------------------------------------------------------------------- |
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15 | 15 | |
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16 | 16 | from functools import wraps |
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17 | 17 | |
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18 | 18 | from IPython.nbformat.v3.nbbase import NotebookNode |
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19 | 19 | from IPython.config import Config |
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20 | 20 | |
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21 | 21 | from .exporter import Exporter |
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22 | 22 | from .html import HTMLExporter |
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23 | 23 | from .slides import SlidesExporter |
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24 | 24 | from .latex import LatexExporter |
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25 | 25 | from .markdown import MarkdownExporter |
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26 | 26 | from .python import PythonExporter |
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27 | 27 | from .rst import RSTExporter |
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28 | 28 | |
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29 | 29 | #----------------------------------------------------------------------------- |
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30 | 30 | # Classes |
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31 | 31 | #----------------------------------------------------------------------------- |
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32 | 32 | |
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33 | 33 | def DocDecorator(f): |
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34 | 34 | |
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35 | 35 | #Set docstring of function |
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36 | 36 | f.__doc__ = f.__doc__ + """ |
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37 | 37 | nb : Notebook node |
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38 | 38 | config : config (optional, keyword arg) |
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39 | 39 | User configuration instance. |
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40 | 40 | resources : dict (optional, keyword arg) |
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41 | 41 | Resources used in the conversion process. |
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42 | 42 | |
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43 | 43 | Returns |
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44 | 44 | ---------- |
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45 | 45 | tuple- output, resources, exporter_instance |
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46 | 46 | output : str |
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47 | 47 | Jinja 2 output. This is the resulting converted notebook. |
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48 | 48 | resources : dictionary |
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49 | 49 | Dictionary of resources used prior to and during the conversion |
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50 | 50 | process. |
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51 | 51 | exporter_instance : Exporter |
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52 | 52 | Instance of the Exporter class used to export the document. Useful |
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53 | 53 | to caller because it provides a 'file_extension' property which |
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54 |
specifies what extension the output should be saved as. |
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54 | specifies what extension the output should be saved as. | |
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55 | ||
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56 | WARNING: API WILL CHANGE IN FUTURE RELEASES OF NBCONVERT | |
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57 | """ | |
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55 | 58 | |
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56 | 59 | @wraps(f) |
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57 | 60 | def decorator(*args, **kwargs): |
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58 | 61 | return f(*args, **kwargs) |
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59 | 62 | |
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60 | 63 | return decorator |
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61 | 64 | |
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62 | 65 | |
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63 | 66 | #----------------------------------------------------------------------------- |
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64 | 67 | # Functions |
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65 | 68 | #----------------------------------------------------------------------------- |
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66 | 69 | |
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67 | 70 | __all__ = [ |
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68 | 71 | 'export', |
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69 | 72 | 'export_html', |
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70 | 73 | 'export_custom', |
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71 | 74 | 'export_slides', |
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72 | 75 | 'export_latex', |
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73 | 76 | 'export_markdown', |
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74 | 77 | 'export_python', |
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75 | 78 | 'export_rst', |
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76 | 79 | 'export_by_name', |
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77 | 80 | 'get_export_names', |
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78 | 81 | 'ExporterNameError' |
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79 | 82 | ] |
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80 | 83 | |
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81 | 84 | |
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82 | 85 | class ExporterNameError(NameError): |
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83 | 86 | pass |
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84 | 87 | |
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85 | 88 | |
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86 | 89 | @DocDecorator |
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87 | 90 | def export(exporter, nb, **kw): |
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88 | 91 | """ |
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89 | 92 | Export a notebook object using specific exporter class. |
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90 | 93 | |
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91 | 94 | exporter : Exporter class type or instance |
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92 | 95 | Class type or instance of the exporter that should be used. If the |
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93 | 96 | method initializes it's own instance of the class, it is ASSUMED that |
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94 | 97 | the class type provided exposes a constructor (__init__) with the same |
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95 | 98 | signature as the base Exporter class. |
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96 | 99 | """ |
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97 | 100 | |
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98 | 101 | #Check arguments |
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99 | 102 | if exporter is None: |
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100 | 103 | raise TypeError("Exporter is None") |
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101 | 104 | elif not isinstance(exporter, Exporter) and not issubclass(exporter, Exporter): |
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102 | 105 | raise TypeError("exporter does not inherit from Exporter (base)") |
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103 | 106 | if nb is None: |
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104 | 107 | raise TypeError("nb is None") |
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105 | 108 | |
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106 | 109 | #Create the exporter |
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107 | 110 | resources = kw.pop('resources', None) |
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108 | 111 | if isinstance(exporter, Exporter): |
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109 | 112 | exporter_instance = exporter |
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110 | 113 | else: |
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111 | 114 | exporter_instance = exporter(**kw) |
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112 | 115 | |
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113 | 116 | #Try to convert the notebook using the appropriate conversion function. |
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114 | 117 | if isinstance(nb, NotebookNode): |
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115 | 118 | output, resources = exporter_instance.from_notebook_node(nb, resources) |
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116 | 119 | elif isinstance(nb, basestring): |
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117 | 120 | output, resources = exporter_instance.from_filename(nb, resources) |
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118 | 121 | else: |
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119 | 122 | output, resources = exporter_instance.from_file(nb, resources) |
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120 | 123 | return output, resources |
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121 | 124 | |
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122 | 125 | |
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123 | 126 | @DocDecorator |
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124 | 127 | def export_custom(nb, **kw): |
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125 | 128 | """ |
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126 | 129 | Export a notebook object to a custom format |
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127 | 130 | """ |
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128 | 131 | return export(Exporter, nb, **kw) |
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129 | 132 | |
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130 | 133 | |
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131 | 134 | @DocDecorator |
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132 | 135 | def export_html(nb, **kw): |
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133 | 136 | """ |
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134 | 137 | Export a notebook object to HTML |
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135 | 138 | """ |
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136 | 139 | return export(HTMLExporter, nb, **kw) |
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137 | 140 | |
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138 | 141 | |
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139 | 142 | @DocDecorator |
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140 | 143 | def export_slides(nb, **kw): |
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141 | 144 | """ |
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142 | 145 | Export a notebook object to Slides |
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143 | 146 | """ |
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144 | 147 | return export(SlidesExporter, nb, **kw) |
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145 | 148 | |
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146 | 149 | |
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147 | 150 | @DocDecorator |
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148 | 151 | def export_latex(nb, **kw): |
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149 | 152 | """ |
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150 | 153 | Export a notebook object to LaTeX |
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151 | 154 | """ |
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152 | 155 | return export(LatexExporter, nb, **kw) |
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153 | 156 | |
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154 | 157 | |
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155 | 158 | @DocDecorator |
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156 | 159 | def export_markdown(nb, **kw): |
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157 | 160 | """ |
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158 | 161 | Export a notebook object to Markdown |
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159 | 162 | """ |
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160 | 163 | return export(MarkdownExporter, nb, **kw) |
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161 | 164 | |
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162 | 165 | |
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163 | 166 | @DocDecorator |
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164 | 167 | def export_python(nb, **kw): |
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165 | 168 | """ |
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166 | 169 | Export a notebook object to Python |
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167 | 170 | """ |
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168 | 171 | return export(PythonExporter, nb, **kw) |
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169 | 172 | |
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170 | 173 | |
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171 | 174 | @DocDecorator |
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172 | 175 | def export_rst(nb, **kw): |
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173 | 176 | """ |
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174 | 177 | Export a notebook object to reStructuredText |
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175 | 178 | """ |
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176 | 179 | return export(RSTExporter, nb, **kw) |
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177 | 180 | |
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178 | 181 | |
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179 | 182 | @DocDecorator |
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180 | 183 | def export_by_name(format_name, nb, **kw): |
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181 | 184 | """ |
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182 | 185 | Export a notebook object to a template type by its name. Reflection |
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183 | 186 | (Inspect) is used to find the template's corresponding explicit export |
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184 | 187 | method defined in this module. That method is then called directly. |
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185 | 188 | |
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186 | 189 | format_name : str |
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187 | 190 | Name of the template style to export to. |
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188 | 191 | """ |
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189 | 192 | |
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190 | 193 | function_name = "export_" + format_name.lower() |
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191 | 194 | |
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192 | 195 | if function_name in globals(): |
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193 | 196 | return globals()[function_name](nb, **kw) |
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194 | 197 | else: |
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195 | 198 | raise ExporterNameError("template for `%s` not found" % function_name) |
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196 | 199 | |
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197 | 200 | |
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198 | 201 | def get_export_names(): |
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199 |
"Return a list of the currently supported export targets |
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202 | """Return a list of the currently supported export targets | |
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203 | ||
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204 | WARNING: API WILL CHANGE IN FUTURE RELEASES OF NBCONVERT""" | |
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205 | ||
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200 | 206 | # grab everything after 'export_' |
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201 | 207 | l = [x[len('export_'):] for x in __all__ if x.startswith('export_')] |
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202 | 208 | |
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203 | 209 | # filter out the one method that is not a template |
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204 | 210 | l = [x for x in l if 'by_name' not in x] |
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205 | 211 | return sorted(l) |
@@ -1,300 +1,302 b'' | |||
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1 | 1 | #!/usr/bin/env python |
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2 | 2 | """NBConvert is a utility for conversion of .ipynb files. |
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3 | 3 | |
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4 | 4 | Command-line interface for the NbConvert conversion utility. |
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5 | 5 | """ |
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6 | 6 | #----------------------------------------------------------------------------- |
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7 | 7 | #Copyright (c) 2013, 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 | # Stdlib imports |
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19 | 19 | from __future__ import print_function |
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20 | 20 | import sys |
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21 | 21 | import os |
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22 | 22 | import glob |
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23 | 23 | |
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24 | 24 | # From IPython |
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25 | 25 | from IPython.core.application import BaseIPythonApplication, base_aliases, base_flags |
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26 | 26 | from IPython.config import catch_config_error, Configurable |
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27 | 27 | from IPython.utils.traitlets import ( |
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28 | 28 | Unicode, List, Instance, DottedObjectName, Type, CaselessStrEnum, |
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29 | 29 | ) |
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30 | 30 | from IPython.utils.importstring import import_item |
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31 | 31 | |
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32 | 32 | from .exporters.export import export_by_name, get_export_names, ExporterNameError |
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33 | 33 | from IPython.nbconvert import exporters, transformers, writers, post_processors |
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34 | 34 | from .utils.base import NbConvertBase |
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35 | 35 | from .utils.exceptions import ConversionException |
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36 | 36 | |
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37 | 37 | #----------------------------------------------------------------------------- |
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38 | 38 | #Classes and functions |
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39 | 39 | #----------------------------------------------------------------------------- |
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40 | 40 | |
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41 | 41 | class DottedOrNone(DottedObjectName): |
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42 | 42 | """ |
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43 | 43 | A string holding a valid dotted object name in Python, such as A.b3._c |
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44 | 44 | Also allows for None type.""" |
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45 | 45 | |
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46 | 46 | default_value = u'' |
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47 | 47 | |
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48 | 48 | def validate(self, obj, value): |
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49 | 49 | if value is not None and len(value) > 0: |
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50 | 50 | return super(DottedOrNone, self).validate(obj, value) |
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51 | 51 | else: |
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52 | 52 | return value |
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53 | 53 | |
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54 | 54 | nbconvert_aliases = {} |
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55 | 55 | nbconvert_aliases.update(base_aliases) |
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56 | 56 | nbconvert_aliases.update({ |
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57 | 57 | 'to' : 'NbConvertApp.export_format', |
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58 | 58 | 'template' : 'Exporter.template_file', |
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59 | 59 | 'notebooks' : 'NbConvertApp.notebooks', |
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60 | 60 | 'writer' : 'NbConvertApp.writer_class', |
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61 | 61 | 'post': 'NbConvertApp.post_processor_class' |
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62 | 62 | }) |
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63 | 63 | |
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64 | 64 | nbconvert_flags = {} |
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65 | 65 | nbconvert_flags.update(base_flags) |
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66 | 66 | nbconvert_flags.update({ |
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67 | 67 | 'stdout' : ( |
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68 | 68 | {'NbConvertApp' : {'writer_class' : "StdoutWriter"}}, |
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69 | 69 | "Write notebook output to stdout instead of files." |
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70 | 70 | ) |
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71 | 71 | }) |
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72 | 72 | |
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73 | 73 | |
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74 | 74 | class NbConvertApp(BaseIPythonApplication): |
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75 | 75 | """Application used to convert to and from notebook file type (*.ipynb)""" |
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76 | 76 | |
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77 | 77 | name = 'ipython-nbconvert' |
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78 | 78 | aliases = nbconvert_aliases |
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79 | 79 | flags = nbconvert_flags |
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80 | 80 | |
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81 | 81 | def _classes_default(self): |
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82 | 82 | classes = [NbConvertBase] |
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83 | 83 | for pkg in (exporters, transformers, writers): |
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84 | 84 | for name in dir(pkg): |
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85 | 85 | cls = getattr(pkg, name) |
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86 | 86 | if isinstance(cls, type) and issubclass(cls, Configurable): |
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87 | 87 | classes.append(cls) |
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88 | 88 | return classes |
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89 | 89 | |
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90 | 90 | description = Unicode( |
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91 | 91 | u"""This application is used to convert notebook files (*.ipynb) |
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92 |
to various other formats. |
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92 | to various other formats. | |
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93 | ||
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94 | WARNING: THE COMMANDLINE INTERFACE MAY CHANGE IN FUTURE RELEASES.""") | |
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93 | 95 | |
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94 | 96 | examples = Unicode(u""" |
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95 | 97 | The simplest way to use nbconvert is |
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96 | 98 | |
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97 | 99 | > ipython nbconvert mynotebook.ipynb |
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98 | 100 | |
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99 | 101 | which will convert mynotebook.ipynb to the default format (probably HTML). |
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100 | 102 | |
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101 | 103 | You can specify the export format with `--to`. |
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102 | 104 | Options include {0} |
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103 | 105 | |
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104 | 106 | > ipython nbconvert --to latex mynotebook.ipnynb |
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105 | 107 | |
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106 | 108 | Both HTML and LaTeX support multiple output templates. LaTeX includes |
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107 | 109 | 'basic', 'book', and 'article'. HTML includes 'basic' and 'full'. You |
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108 | 110 | can specify the flavor of the format used. |
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109 | 111 | |
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110 | 112 | > ipython nbconvert --to html --template reveal mynotebook.ipnynb |
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111 | 113 | |
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112 | 114 | You can also pipe the output to stdout, rather than a file |
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113 | 115 | |
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114 | 116 | > ipython nbconvert mynotebook.ipynb --stdout |
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115 | 117 | |
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116 | 118 | A post-processor can be used to compile a PDF |
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117 | 119 | |
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118 | 120 | > ipython nbconvert mynotebook.ipynb --to latex --post PDF |
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119 | 121 | |
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120 | 122 | Multiple notebooks can be given at the command line in a couple of |
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121 | 123 | different ways: |
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122 | 124 | |
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123 | 125 | > ipython nbconvert notebook*.ipynb |
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124 | 126 | > ipython nbconvert notebook1.ipynb notebook2.ipynb |
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125 | 127 | |
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126 | 128 | or you can specify the notebooks list in a config file, containing:: |
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127 | 129 | |
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128 | 130 | c.NbConvertApp.notebooks = ["my_notebook.ipynb"] |
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129 | 131 | |
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130 | 132 | > ipython nbconvert --config mycfg.py |
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131 | 133 | """.format(get_export_names())) |
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132 | 134 | |
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133 | 135 | # Writer specific variables |
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134 | 136 | writer = Instance('IPython.nbconvert.writers.base.WriterBase', |
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135 | 137 | help="""Instance of the writer class used to write the |
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136 | 138 | results of the conversion.""") |
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137 | 139 | writer_class = DottedObjectName('FilesWriter', config=True, |
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138 | 140 | help="""Writer class used to write the |
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139 | 141 | results of the conversion""") |
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140 | 142 | writer_aliases = {'FilesWriter': 'IPython.nbconvert.writers.files.FilesWriter', |
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141 | 143 | 'PDFWriter': 'IPython.nbconvert.writers.pdf.PDFWriter', |
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142 | 144 | 'DebugWriter': 'IPython.nbconvert.writers.debug.DebugWriter', |
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143 | 145 | 'StdoutWriter': 'IPython.nbconvert.writers.stdout.StdoutWriter'} |
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144 | 146 | writer_factory = Type() |
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145 | 147 | |
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146 | 148 | def _writer_class_changed(self, name, old, new): |
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147 | 149 | if new in self.writer_aliases: |
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148 | 150 | new = self.writer_aliases[new] |
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149 | 151 | self.writer_factory = import_item(new) |
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150 | 152 | |
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151 | 153 | # Post-processor specific variables |
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152 | 154 | post_processor = Instance('IPython.nbconvert.post_processors.base.PostProcessorBase', |
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153 | 155 | help="""Instance of the PostProcessor class used to write the |
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154 | 156 | results of the conversion.""") |
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155 | 157 | |
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156 | 158 | post_processor_class = DottedOrNone(config=True, |
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157 | 159 | help="""PostProcessor class used to write the |
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158 | 160 | results of the conversion""") |
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159 | 161 | post_processor_aliases = {'PDF': 'IPython.nbconvert.post_processors.pdf.PDFPostProcessor'} |
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160 | 162 | post_processor_factory = Type() |
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161 | 163 | |
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162 | 164 | def _post_processor_class_changed(self, name, old, new): |
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163 | 165 | if new in self.post_processor_aliases: |
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164 | 166 | new = self.post_processor_aliases[new] |
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165 | 167 | if new: |
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166 | 168 | self.post_processor_factory = import_item(new) |
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167 | 169 | |
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168 | 170 | |
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169 | 171 | # Other configurable variables |
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170 | 172 | export_format = CaselessStrEnum(get_export_names(), |
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171 | 173 | default_value="html", |
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172 | 174 | config=True, |
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173 | 175 | help="""The export format to be used.""" |
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174 | 176 | ) |
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175 | 177 | |
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176 | 178 | notebooks = List([], config=True, help="""List of notebooks to convert. |
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177 | 179 | Wildcards are supported. |
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178 | 180 | Filenames passed positionally will be added to the list. |
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179 | 181 | """) |
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180 | 182 | |
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181 | 183 | @catch_config_error |
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182 | 184 | def initialize(self, argv=None): |
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183 | 185 | super(NbConvertApp, self).initialize(argv) |
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184 | 186 | self.init_syspath() |
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185 | 187 | self.init_notebooks() |
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186 | 188 | self.init_writer() |
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187 | 189 | self.init_post_processor() |
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188 | 190 | |
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189 | 191 | |
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190 | 192 | |
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191 | 193 | def init_syspath(self): |
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192 | 194 | """ |
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193 | 195 | Add the cwd to the sys.path ($PYTHONPATH) |
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194 | 196 | """ |
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195 | 197 | sys.path.insert(0, os.getcwd()) |
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196 | 198 | |
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197 | 199 | |
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198 | 200 | def init_notebooks(self): |
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199 | 201 | """Construct the list of notebooks. |
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200 | 202 | If notebooks are passed on the command-line, |
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201 | 203 | they override notebooks specified in config files. |
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202 | 204 | Glob each notebook to replace notebook patterns with filenames. |
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203 | 205 | """ |
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204 | 206 | |
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205 | 207 | # Specifying notebooks on the command-line overrides (rather than adds) |
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206 | 208 | # the notebook list |
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207 | 209 | if self.extra_args: |
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208 | 210 | patterns = self.extra_args |
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209 | 211 | else: |
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210 | 212 | patterns = self.notebooks |
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211 | 213 | |
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212 | 214 | # Use glob to replace all the notebook patterns with filenames. |
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213 | 215 | filenames = [] |
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214 | 216 | for pattern in patterns: |
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215 | 217 | |
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216 | 218 | # Use glob to find matching filenames. Allow the user to convert |
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217 | 219 | # notebooks without having to type the extension. |
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218 | 220 | globbed_files = glob.glob(pattern) |
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219 | 221 | globbed_files.extend(glob.glob(pattern + '.ipynb')) |
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220 | 222 | |
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221 | 223 | for filename in globbed_files: |
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222 | 224 | if not filename in filenames: |
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223 | 225 | filenames.append(filename) |
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224 | 226 | self.notebooks = filenames |
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225 | 227 | |
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226 | 228 | def init_writer(self): |
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227 | 229 | """ |
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228 | 230 | Initialize the writer (which is stateless) |
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229 | 231 | """ |
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230 | 232 | self._writer_class_changed(None, self.writer_class, self.writer_class) |
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231 | 233 | self.writer = self.writer_factory(parent=self) |
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232 | 234 | |
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233 | 235 | def init_post_processor(self): |
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234 | 236 | """ |
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235 | 237 | Initialize the post_processor (which is stateless) |
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236 | 238 | """ |
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237 | 239 | self._post_processor_class_changed(None, self.post_processor_class, |
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238 | 240 | self.post_processor_class) |
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239 | 241 | if self.post_processor_factory: |
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240 | 242 | self.post_processor = self.post_processor_factory(parent=self) |
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241 | 243 | |
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242 | 244 | def start(self): |
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243 | 245 | """ |
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244 | 246 | Ran after initialization completed |
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245 | 247 | """ |
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246 | 248 | super(NbConvertApp, self).start() |
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247 | 249 | self.convert_notebooks() |
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248 | 250 | |
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249 | 251 | def convert_notebooks(self): |
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250 | 252 | """ |
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251 | 253 | Convert the notebooks in the self.notebook traitlet |
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252 | 254 | """ |
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253 | 255 | # Export each notebook |
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254 | 256 | conversion_success = 0 |
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255 | 257 | for notebook_filename in self.notebooks: |
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256 | 258 | |
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257 | 259 | # Get a unique key for the notebook and set it in the resources object. |
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258 | 260 | basename = os.path.basename(notebook_filename) |
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259 | 261 | notebook_name = basename[:basename.rfind('.')] |
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260 | 262 | resources = {} |
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261 | 263 | resources['unique_key'] = notebook_name |
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262 | 264 | resources['output_files_dir'] = '%s_files' % notebook_name |
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263 | 265 | |
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264 | 266 | # Try to export |
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265 | 267 | try: |
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266 | 268 | output, resources = export_by_name(self.export_format, |
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267 | 269 | notebook_filename, |
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268 | 270 | resources=resources, |
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269 | 271 | config=self.config) |
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270 | 272 | except ExporterNameError as e: |
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271 | 273 | print("Error while converting '%s': '%s' exporter not found." |
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272 | 274 | %(notebook_filename, self.export_format), |
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273 | 275 | file=sys.stderr) |
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274 | 276 | print("Known exporters are:", |
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275 | 277 | "\n\t" + "\n\t".join(get_export_names()), |
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276 | 278 | file=sys.stderr) |
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277 | 279 | self.exit(1) |
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278 | 280 | except ConversionException as e: |
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279 | 281 | print("Error while converting '%s': %s" %(notebook_filename, e), |
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280 | 282 | file=sys.stderr) |
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281 | 283 | self.exit(1) |
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282 | 284 | else: |
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283 | 285 | write_resultes = self.writer.write(output, resources, notebook_name=notebook_name) |
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284 | 286 | |
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285 | 287 | #Post-process if post processor has been defined. |
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286 | 288 | if hasattr(self, 'post_processor') and self.post_processor: |
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287 | 289 | self.post_processor(write_resultes) |
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288 | 290 | conversion_success += 1 |
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289 | 291 | |
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290 | 292 | # If nothing was converted successfully, help the user. |
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291 | 293 | if conversion_success == 0: |
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292 | 294 | self.print_help() |
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293 | 295 | sys.exit(-1) |
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294 | 296 | |
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295 | 297 | |
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296 | 298 | #----------------------------------------------------------------------------- |
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297 | 299 | # Main entry point |
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298 | 300 | #----------------------------------------------------------------------------- |
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299 | 301 | |
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300 | 302 | launch_new_instance = NbConvertApp.launch_instance |
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