upstream/ipython Files · IPython/nbformat/v2/nbjson.py

add dirty trick for readline import on OSX...

add dirty trick for readline import on OSX also made the libedit warning extremely loud, so people don't miss it. We still get reports of people never having noticed the warning, and getting confused when readline is broken on OSX. The reason for the dirty trick: pip installs to site-packages by default, but site-packages dirs always come *after* lib-dynload (and extras, etc.), which is where the system readline is installed. That means that a non-setuptools install (pip or setup.py install) *cannot* override any package that ships with OSX, including: numpy, readline, twisted, pyobjc without installing to a non-standard path (not even user site-packages via `--user`). The method for the dirty trick: 1. remove lib-dynload from sys.path before trying to import readline the first time 2. after import, restore lib-dynload to its place in sys.path 3. if import failed without lib-dynload, try it one more time

Brian E. Granger - - Load All Authors

File last commit:

r4609:a661b7c0


                r5206:387dcd6a

Download file

             nbjson.py
        
                    62 lines
            
             | 1.7 KiB
            
                | text/x-python
            
             |
                PythonLexer
            
             / IPython / nbformat / v2 / nbjson.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      """Read and write notebooks in JSON format.

      Authors:

      * Brian Granger

      """

      #-----------------------------------------------------------------------------

      #  Copyright (C) 2008-2011  The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      from base64 import encodestring

      from .nbbase import from_dict

      from .rwbase import NotebookReader, NotebookWriter, base64_decode

      import json

      #-----------------------------------------------------------------------------

      # Code

      #-----------------------------------------------------------------------------

      class BytesEncoder(json.JSONEncoder):

          def default(self, obj):

              if isinstance(obj, bytes):

                  return unicode(encodestring(bytes))

              return json.JSONEncoder.default(self, obj)

      class JSONReader(NotebookReader):

          def reads(self, s, **kwargs):

              nb = json.loads(s, **kwargs)

              nb = self.to_notebook(nb, **kwargs)

              return nb

          def to_notebook(self, d, **kwargs):

              return base64_decode(from_dict(d))

      class JSONWriter(NotebookWriter):

          def writes(self, nb, **kwargs):

              kwargs['cls'] = BytesEncoder

              kwargs['indent'] = 4

              return json.dumps(nb, **kwargs)

      _reader = JSONReader()

      _writer = JSONWriter()

      reads = _reader.reads

      read = _reader.read

      to_notebook = _reader.to_notebook

      write = _writer.write

      writes = _writer.writes

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				"""Read and write notebooks in JSON format.

				Authors:

				* Brian Granger
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2011 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				from base64 import encodestring
				from .nbbase import from_dict
				from .rwbase import NotebookReader, NotebookWriter, base64_decode
				import json

				#-----------------------------------------------------------------------------
				# Code
				#-----------------------------------------------------------------------------

				class BytesEncoder(json.JSONEncoder):
				def default(self, obj):
				if isinstance(obj, bytes):
				return unicode(encodestring(bytes))
				return json.JSONEncoder.default(self, obj)


				class JSONReader(NotebookReader):

				def reads(self, s, **kwargs):
				nb = json.loads(s, **kwargs)
				nb = self.to_notebook(nb, **kwargs)
				return nb

				def to_notebook(self, d, **kwargs):
				return base64_decode(from_dict(d))


				class JSONWriter(NotebookWriter):

				def writes(self, nb, **kwargs):
				kwargs['cls'] = BytesEncoder
				kwargs['indent'] = 4
				return json.dumps(nb, **kwargs)


				_reader = JSONReader()
				_writer = JSONWriter()

				reads = _reader.reads
				read = _reader.read
				to_notebook = _reader.to_notebook
				write = _writer.write
				writes = _writer.writes