64 lines
2.0 KiB
Python
Executable File
64 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Transform any Python sample or example to Python NoteBook."""
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import ast
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import sys
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from nbformat import v3
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from nbformat import v4
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input_file = sys.argv[1]
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print('reading %s' % input_file)
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with open(input_file) as fpin:
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text = fpin.read()
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nbook = v3.reads_py('')
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nbook = v4.upgrade(nbook) # Upgrade v3 to v4
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all_blocks = ast.parse(text).body
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line_start = [c.lineno - 1 for c in all_blocks]
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line_start[0] = 0
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lines = text.split('\n')
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full_text = ''
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for c_block, s, e in zip(all_blocks, line_start, line_start[1:] + [len(lines)]):
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c_text = '\n'.join(lines[s:e])
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if isinstance(c_block,
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ast.If) and c_block.test.comparators[0].s == '__main__':
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print('Skip if main', lines[s:e])
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elif isinstance(c_block, ast.FunctionDef) and c_block.name == 'main':
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# remove start and de-indent lines
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c_lines = lines[s + 1:e]
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spaces_to_delete = c_block.body[0].col_offset
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fixed_lines = [
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n_line[spaces_to_delete:]
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if n_line.startswith(' ' * spaces_to_delete) else n_line
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for n_line in c_lines
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]
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fixed_text = '\n'.join(fixed_lines)
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print('Unwrapping main function')
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full_text += fixed_text
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else:
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print('appending', c_block)
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full_text += c_text + '\n'
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nbook['cells'].append(v4.new_code_cell(full_text))
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jsonform = v4.writes(nbook) + '\n'
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output_file = input_file
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output_file = output_file.replace('.py', '.ipynb')
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# For example/python/foo.py -> example/notebook/examples/foo.ipynb
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output_file = output_file.replace('examples/python',
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'examples/notebook/examples')
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# For example/contrib/foo.py -> example/notebook/contrib/foo.ipynb
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output_file = output_file.replace('examples/contrib',
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'examples/notebook/contrib')
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# For ortools/*/samples/foo.py -> example/notebook/*/foo.ipynb
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output_file = output_file.replace('ortools', 'examples/notebook')
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output_file = output_file.replace('samples/', '')
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print('writing %s' % output_file)
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with open(output_file, 'w') as fpout:
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fpout.write(jsonform)
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