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"""
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"""
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def cell_preprocessor(function):
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""" wrap a function to be executed on all cells of a notebook
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|
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wrapped function parameters :
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cell : the cell
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other : external resources
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index : index of the cell
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"""
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def wrappedfunc(nb, other):
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for worksheet in nb.worksheets :
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for index, cell in enumerate(worksheet.cells):
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worksheet.cells[index], other = function(cell, other, index)
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return nb, other
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return wrappedfunc
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@cell_preprocessor
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def haspyout_transformer(cell, other, count):
|
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"""
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|
Add a haspyout flag to cell that have it
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|
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|
Easier for templating, where you can't know in advance
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|
wether to write the out prompt
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|
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"""
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|
cell.type = cell.cell_type
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cell.haspyout = False
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for out in cell.get('outputs', []):
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|
if out.output_type == 'pyout':
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|
cell.haspyout = True
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|
break
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|
return cell, other
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# todo, make the key part configurable.
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|
def _new_figure(data, fmt, count):
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|
"""Create a new figure file in the given format.
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|
|
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|
Returns a path relative to the input file.
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"""
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|
figname = '_fig_%02i.%s' % (count, fmt)
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|
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|
# Binary files are base64-encoded, SVG is already XML
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|
|
if fmt in ('png', 'jpg', 'pdf'):
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|
data = data.decode('base64')
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|
return figname, data
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|
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|
@cell_preprocessor
|
|
|
def extract_figure_transformer(cell, other, count):
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|
|
for i, out in enumerate(cell.get('outputs', [])):
|
|
|
for type in ['html', 'pdf', 'svg', 'latex', 'png', 'jpg', 'jpeg']:
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|
|
if out.hasattr(type):
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|
figname, data = _new_figure(out[type], type, count)
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|
cell.outputs[i][type] = figname
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|
out['key_'+type] = figname
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|
|
other[figname] = data
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|
count = count+1
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|
return cell, other
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|
|
|
|
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|
