|
|
from base64 import encodestring, decodestring
|
|
|
import pprint
|
|
|
|
|
|
def base64_decode(nb):
|
|
|
"""Base64 encode all bytes objects in the notebook."""
|
|
|
for ws in nb.worksheets:
|
|
|
for cell in ws.cells:
|
|
|
if cell.cell_type == 'code':
|
|
|
if 'png' in cell:
|
|
|
cell.png = bytes(decodestring(cell.png))
|
|
|
if 'jpeg' in cell:
|
|
|
cell.jpeg = bytes(decodestring(cell.jpeg))
|
|
|
return nb
|
|
|
|
|
|
|
|
|
def base64_encode(nb):
|
|
|
"""Base64 decode all binary objects in the notebook."""
|
|
|
for ws in nb.worksheets:
|
|
|
for cell in ws.cells:
|
|
|
if cell.cell_type == 'code':
|
|
|
if 'png' in cell:
|
|
|
cell.png = unicode(encodestring(cell.png))
|
|
|
if 'jpeg' in cell:
|
|
|
cell.jpeg = unicode(encodestring(cell.jpeg))
|
|
|
return nb
|
|
|
|
|
|
|
|
|
class NotebookReader(object):
|
|
|
|
|
|
def reads(self, s, **kwargs):
|
|
|
"""Read a notebook from a string."""
|
|
|
raise NotImplementedError("loads must be implemented in a subclass")
|
|
|
|
|
|
def read(self, fp, **kwargs):
|
|
|
"""Read a notebook from a file like object"""
|
|
|
return self.read(fp.read(), **kwargs)
|
|
|
|
|
|
|
|
|
class NotebookWriter(object):
|
|
|
|
|
|
def writes(self, nb, **kwargs):
|
|
|
"""Write a notebook to a string."""
|
|
|
raise NotImplementedError("loads must be implemented in a subclass")
|
|
|
|
|
|
def write(self, nb, fp, **kwargs):
|
|
|
"""Write a notebook to a file like object"""
|
|
|
return fp.write(self.writes(nb,**kwargs))
|
|
|
|
|
|
|
|
|
|
|
|
|
