def notebook_to_md(notebook):
"""Convert a notebook to its Markdown representation, using Pandoc"""
tmp_file = tempfile.NamedTemporaryFile(delete=False)
tmp_file.write(ipynb_writes(notebook).encode('utf-8'))
tmp_file.close()
pandoc(
u'--from ipynb --to markdown -s --atx-headers --wrap=preserve --preserve-tabs',
tmp_file.name, tmp_file.name)
with open(tmp_file.name, encoding='utf-8') as opened_file:
text = opened_file.read()
os.unlink(tmp_file.name)
return '\n'.join(text.splitlines())
def notebook_to_md(notebook):
"""Convert a notebook to its Markdown representation, using Pandoc"""
raise_if_pandoc_is_not_available()
tmp_file = tempfile.NamedTemporaryFile(delete=False)
tmp_file.write(ipynb_writes(notebook).encode("utf-8"))
tmp_file.close()
pandoc(
u"--from ipynb --to markdown -s --atx-headers --wrap=preserve --preserve-tabs",
tmp_file.name,
tmp_file.name,
)
with open(tmp_file.name, encoding="utf-8") as opened_file:
text = opened_file.read()
os.unlink(tmp_file.name)
return "\n".join(text.splitlines())
def convert(nb_files, in_place=True, combine=True):
"""
Export python or R notebooks, or Jupyter notebooks, to the opposite format
:param nb_files: one or more notebooks
:param in_place: should result of conversion be stored in file
with opposite extension?
:param combine: should the current outputs of .ipynb file be preserved,
when a cell with corresponding input is found in .py or .R file?
:return:
"""
for nb_file in nb_files:
file, ext = os.path.splitext(nb_file)
if ext not in ['.ipynb', '.py', '.R']:
raise TypeError(
'File {} is neither a Jupyter (.ipynb) nor a '
'python script (.py), nor a R script (.R)'.format(nb_file))
nb = readf(nb_file)
main_language = get_default_language(nb)
ext_dest = '.R' if main_language == 'R' else '.py'
if in_place:
if ext == '.ipynb':
nb_dest = file + ext_dest
print('Jupyter notebook {} being converted to '
'source {}'.format(nb_file, nb_dest))
else:
msg = ''
nb_dest = file + '.ipynb'
if combine and os.path.isfile(nb_dest):
try:
nb_outputs = readf(nb_dest)
combine_inputs_with_outputs(nb, nb_outputs)
msg = '(outputs were preserved)'
except (IOError, NotJSONError) as error:
msg = '(outputs were not preserved: {})'.format(error)
print('R Markdown {} being converted to '
'Jupyter notebook {} {}'.format(nb_file, nb_dest, msg))
writef(nb, nb_dest)
else:
if ext == '.ipynb':
print(writes(nb, ext_dest))
else:
print(ipynb_writes(nb))