remove nbformat

ipython[nbformat] depends on jupyter_nbformat

IPython/testing/iptest.py

@@ -1,521 +1,519 b''
 # -*- coding: utf-8 -*-
 """IPython Test Suite Runner.
 
 This module provides a main entry point to a user script to test IPython
 itself from the command line. There are two ways of running this script:
 
 1. With the syntax `iptest all`.  This runs our entire test suite by
    calling this script (with different arguments) recursively.  This
    causes modules and package to be tested in different processes, using nose
    or trial where appropriate.
 2. With the regular nose syntax, like `iptest -vvs IPython`.  In this form
    the script simply calls nose, but with special command line flags and
    plugins loaded.
 
 """
 
 # Copyright (c) IPython Development Team.
 # Distributed under the terms of the Modified BSD License.
 
 from __future__ import print_function
 
 import glob
 from io import BytesIO
 import os
 import os.path as path
 import sys
 from threading import Thread, Lock, Event
 import warnings
 
 import nose.plugins.builtin
 from nose.plugins.xunit import Xunit
 from nose import SkipTest
 from nose.core import TestProgram
 from nose.plugins import Plugin
 from nose.util import safe_str
 
 from IPython.utils.process import is_cmd_found
 from IPython.utils.py3compat import bytes_to_str
 from IPython.utils.importstring import import_item
 from IPython.testing.plugin.ipdoctest import IPythonDoctest
 from IPython.external.decorators import KnownFailure, knownfailureif
 
 pjoin = path.join
 
 #-----------------------------------------------------------------------------
 # Warnings control
 #-----------------------------------------------------------------------------
 
 # Twisted generates annoying warnings with Python 2.6, as will do other code
 # that imports 'sets' as of today
 warnings.filterwarnings('ignore', 'the sets module is deprecated',
                         DeprecationWarning )
 
 # This one also comes from Twisted
 warnings.filterwarnings('ignore', 'the sha module is deprecated',
                         DeprecationWarning)
 
 # Wx on Fedora11 spits these out
 warnings.filterwarnings('ignore', 'wxPython/wxWidgets release number mismatch',
                         UserWarning)
 
 # ------------------------------------------------------------------------------
 # Monkeypatch Xunit to count known failures as skipped.
 # ------------------------------------------------------------------------------
 def monkeypatch_xunit():
     try:
         knownfailureif(True)(lambda: None)()
     except Exception as e:
         KnownFailureTest = type(e)
 
     def addError(self, test, err, capt=None):
         if issubclass(err[0], KnownFailureTest):
             err = (SkipTest,) + err[1:]
         return self.orig_addError(test, err, capt)
 
     Xunit.orig_addError = Xunit.addError
     Xunit.addError = addError
 
 #-----------------------------------------------------------------------------
 # Check which dependencies are installed and greater than minimum version.
 #-----------------------------------------------------------------------------
 def extract_version(mod):
     return mod.__version__
 
 def test_for(item, min_version=None, callback=extract_version):
     """Test to see if item is importable, and optionally check against a minimum
     version.
 
     If min_version is given, the default behavior is to check against the
     `__version__` attribute of the item, but specifying `callback` allows you to
     extract the value you are interested in. e.g::
 
         In [1]: import sys
 
         In [2]: from IPython.testing.iptest import test_for
 
         In [3]: test_for('sys', (2,6), callback=lambda sys: sys.version_info)
         Out[3]: True
 
     """
     try:
         check = import_item(item)
     except (ImportError, RuntimeError):
         # GTK reports Runtime error if it can't be initialized even if it's
         # importable.
         return False
     else:
         if min_version:
             if callback:
                 # extra processing step to get version to compare
                 check = callback(check)
 
             return check >= min_version
         else:
             return True
 
 # Global dict where we can store information on what we have and what we don't
 # have available at test run time
 have = {}
 
 have['curses'] = test_for('_curses')
 have['matplotlib'] = test_for('matplotlib')
 have['numpy'] = test_for('numpy')
 have['pexpect'] = test_for('pexpect')
 have['pymongo'] = test_for('pymongo')
 have['pygments'] = test_for('pygments')
 have['qt'] = test_for('IPython.external.qt')
 have['sqlite3'] = test_for('sqlite3')
 have['tornado'] = test_for('tornado.version_info', (4,0), callback=None)
 have['jinja2'] = test_for('jinja2')
 have['mistune'] = test_for('mistune')
 have['requests'] = test_for('requests')
 have['sphinx'] = test_for('sphinx')
 have['jsonschema'] = test_for('jsonschema')
 have['terminado'] = test_for('terminado')
 have['casperjs'] = is_cmd_found('casperjs')
 have['phantomjs'] = is_cmd_found('phantomjs')
 have['slimerjs'] = is_cmd_found('slimerjs')
 
 min_zmq = (13,)
 
 have['zmq'] = test_for('zmq.pyzmq_version_info', min_zmq, callback=lambda x: x())
 
 #-----------------------------------------------------------------------------
 # Test suite definitions
 #-----------------------------------------------------------------------------
 
 test_group_names = ['parallel', 'kernel', 'kernel.inprocess', 'config', 'core',
                     'extensions', 'lib', 'terminal', 'testing', 'utils',
-                    'nbformat', 'qt', 'html', 'nbconvert'
+                    'qt', 'html', 'nbconvert'
                    ]
 
 class TestSection(object):
     def __init__(self, name, includes):
         self.name = name
         self.includes = includes
         self.excludes = []
         self.dependencies = []
         self.enabled = True
     
     def exclude(self, module):
         if not module.startswith('IPython'):
             module = self.includes[0] + "." + module
         self.excludes.append(module.replace('.', os.sep))
     
     def requires(self, *packages):
         self.dependencies.extend(packages)
     
     @property
     def will_run(self):
         return self.enabled and all(have[p] for p in self.dependencies)
 
 shims = {
     'parallel': 'ipython_parallel',
     'kernel': 'ipython_kernel',
     'kernel.inprocess': 'ipython_kernel.inprocess',
     'config': 'traitlets',
 }
 
 # Name -> (include, exclude, dependencies_met)
 test_sections = {n:TestSection(n, [shims.get(n, 'IPython.%s' % n)]) for n in test_group_names}
 
 
 # Exclusions and dependencies
 # ---------------------------
 
 # core:
 sec = test_sections['core']
 if not have['sqlite3']:
     sec.exclude('tests.test_history')
     sec.exclude('history')
 if not have['matplotlib']:
     sec.exclude('pylabtools'),
     sec.exclude('tests.test_pylabtools')
 
 # lib:
 sec = test_sections['lib']
 if not have['zmq']:
     sec.exclude('kernel')
 # We do this unconditionally, so that the test suite doesn't import
 # gtk, changing the default encoding and masking some unicode bugs.
 sec.exclude('inputhookgtk')
 # We also do this unconditionally, because wx can interfere with Unix signals.
 # There are currently no tests for it anyway.
 sec.exclude('inputhookwx')
 # Testing inputhook will need a lot of thought, to figure out
 # how to have tests that don't lock up with the gui event
 # loops in the picture
 sec.exclude('inputhook')
 
 # testing:
 sec = test_sections['testing']
 # These have to be skipped on win32 because they use echo, rm, cd, etc.
 # See ticket https://github.com/ipython/ipython/issues/87
 if sys.platform == 'win32':
     sec.exclude('plugin.test_exampleip')
     sec.exclude('plugin.dtexample')
 
 # terminal:
 if (not have['pexpect']) or (not have['zmq']):
     test_sections['terminal'].exclude('console')
 
 # parallel
 sec = test_sections['parallel']
 sec.requires('zmq')
 if not have['pymongo']:
     sec.exclude('controller.mongodb')
     sec.exclude('tests.test_mongodb')
 
 # kernel:
 sec = test_sections['kernel']
 sec.requires('zmq')
 # The in-process kernel tests are done in a separate section
 sec.exclude('inprocess')
 # importing gtk sets the default encoding, which we want to avoid
 sec.exclude('gui.gtkembed')
 sec.exclude('gui.gtk3embed')
 if not have['matplotlib']:
     sec.exclude('pylab')
 
 # kernel.inprocess:
 test_sections['kernel.inprocess'].requires('zmq')
 
 # extensions:
 sec = test_sections['extensions']
 # This is deprecated in favour of rpy2
 sec.exclude('rmagic')
 # autoreload does some strange stuff, so move it to its own test section
 sec.exclude('autoreload')
 sec.exclude('tests.test_autoreload')
 test_sections['autoreload'] = TestSection('autoreload',
         ['IPython.extensions.autoreload', 'IPython.extensions.tests.test_autoreload'])
 test_group_names.append('autoreload')
 
 # qt:
 test_sections['qt'].requires('zmq', 'qt', 'pygments')
 
 # html:
 sec = test_sections['html']
 sec.requires('zmq', 'tornado', 'requests', 'sqlite3', 'jsonschema')
 # The notebook 'static' directory contains JS, css and other
 # files for web serving.  Occasionally projects may put a .py
 # file in there (MathJax ships a conf.py), so we might as
 # well play it safe and skip the whole thing.
 sec.exclude('static')
 sec.exclude('tasks')
 if not have['jinja2']:
     sec.exclude('notebookapp')
 if not have['pygments'] or not have['jinja2']:
     sec.exclude('nbconvert')
 if not have['terminado']:
     sec.exclude('terminal')
 
 # nbconvert:
 sec = test_sections['nbconvert']
 sec.requires('pygments', 'jinja2', 'jsonschema', 'mistune')
 # Exclude nbconvert directories containing config files used to test.
 # Executing the config files with iptest would cause an exception.
 sec.exclude('tests.files')
 sec.exclude('exporters.tests.files')
 if not have['tornado']:
     sec.exclude('nbconvert.post_processors.serve')
     sec.exclude('nbconvert.post_processors.tests.test_serve')
 
-# nbformat:
-test_sections['nbformat'].requires('jsonschema')
 
 #-----------------------------------------------------------------------------
 # Functions and classes
 #-----------------------------------------------------------------------------
 
 def check_exclusions_exist():
     from IPython.utils.path import get_ipython_package_dir
     from IPython.utils.warn import warn
     parent = os.path.dirname(get_ipython_package_dir())
     for sec in test_sections:
         for pattern in sec.exclusions:
             fullpath = pjoin(parent, pattern)
             if not os.path.exists(fullpath) and not glob.glob(fullpath + '.*'):
                 warn("Excluding nonexistent file: %r" % pattern)
 
 
 class ExclusionPlugin(Plugin):
     """A nose plugin to effect our exclusions of files and directories.
     """
     name = 'exclusions'
     score = 3000  # Should come before any other plugins
     
     def __init__(self, exclude_patterns=None):
         """
         Parameters
         ----------
 
         exclude_patterns : sequence of strings, optional
           Filenames containing these patterns (as raw strings, not as regular
           expressions) are excluded from the tests.
         """
         self.exclude_patterns = exclude_patterns or []
         super(ExclusionPlugin, self).__init__()
 
     def options(self, parser, env=os.environ):
         Plugin.options(self, parser, env)
     
     def configure(self, options, config):
         Plugin.configure(self, options, config)
         # Override nose trying to disable plugin.
         self.enabled = True
         
     def wantFile(self, filename):
         """Return whether the given filename should be scanned for tests.
         """
         if any(pat in filename for pat in self.exclude_patterns):
             return False
         return None
 
     def wantDirectory(self, directory):
         """Return whether the given directory should be scanned for tests.
         """
         if any(pat in directory for pat in self.exclude_patterns):
             return False
         return None
 
 
 class StreamCapturer(Thread):
     daemon = True  # Don't hang if main thread crashes
     started = False
     def __init__(self, echo=False):
         super(StreamCapturer, self).__init__()
         self.echo = echo
         self.streams = []
         self.buffer = BytesIO()
         self.readfd, self.writefd = os.pipe()
         self.buffer_lock = Lock()
         self.stop = Event()
 
     def run(self):
         self.started = True
 
         while not self.stop.is_set():
             chunk = os.read(self.readfd, 1024)
 
             with self.buffer_lock:
                 self.buffer.write(chunk)
             if self.echo:
                 sys.stdout.write(bytes_to_str(chunk))
     
         os.close(self.readfd)
         os.close(self.writefd)
 
     def reset_buffer(self):
         with self.buffer_lock:
             self.buffer.truncate(0)
             self.buffer.seek(0)
 
     def get_buffer(self):
         with self.buffer_lock:
             return self.buffer.getvalue()
 
     def ensure_started(self):
         if not self.started:
             self.start()
 
     def halt(self):
         """Safely stop the thread."""
         if not self.started:
             return
 
         self.stop.set()
         os.write(self.writefd, b'\0')  # Ensure we're not locked in a read()
         self.join()
 
 class SubprocessStreamCapturePlugin(Plugin):
     name='subprocstreams'
     def __init__(self):
         Plugin.__init__(self)
         self.stream_capturer = StreamCapturer()
         self.destination = os.environ.get('IPTEST_SUBPROC_STREAMS', 'capture')
         # This is ugly, but distant parts of the test machinery need to be able
         # to redirect streams, so we make the object globally accessible.
         nose.iptest_stdstreams_fileno = self.get_write_fileno
 
     def get_write_fileno(self):
         if self.destination == 'capture':
             self.stream_capturer.ensure_started()
             return self.stream_capturer.writefd
         elif self.destination == 'discard':
             return os.open(os.devnull, os.O_WRONLY)
         else:
             return sys.__stdout__.fileno()
     
     def configure(self, options, config):
         Plugin.configure(self, options, config)
         # Override nose trying to disable plugin.
         if self.destination == 'capture':
             self.enabled = True
     
     def startTest(self, test):
         # Reset log capture
         self.stream_capturer.reset_buffer()
     
     def formatFailure(self, test, err):
         # Show output
         ec, ev, tb = err
         captured = self.stream_capturer.get_buffer().decode('utf-8', 'replace')
         if captured.strip():
             ev = safe_str(ev)
             out = [ev, '>> begin captured subprocess output <<',
                     captured,
                     '>> end captured subprocess output <<']
             return ec, '\n'.join(out), tb
 
         return err
     
     formatError = formatFailure
     
     def finalize(self, result):
         self.stream_capturer.halt()
 
 
 def run_iptest():
     """Run the IPython test suite using nose.
 
     This function is called when this script is **not** called with the form
     `iptest all`.  It simply calls nose with appropriate command line flags
     and accepts all of the standard nose arguments.
     """
     # Apply our monkeypatch to Xunit
     if '--with-xunit' in sys.argv and not hasattr(Xunit, 'orig_addError'):
         monkeypatch_xunit()
 
     warnings.filterwarnings('ignore',
         'This will be removed soon.  Use IPython.testing.util instead')
     
     arg1 = sys.argv[1]
     if arg1 in test_sections:
         section = test_sections[arg1]
         sys.argv[1:2] = section.includes
     elif arg1.startswith('IPython.') and arg1[8:] in test_sections:
         section = test_sections[arg1[8:]]
         sys.argv[1:2] = section.includes
     else:
         section = TestSection(arg1, includes=[arg1])
         
 
     argv = sys.argv + [ '--detailed-errors',  # extra info in tracebacks
                         # We add --exe because of setuptools' imbecility (it
                         # blindly does chmod +x on ALL files).  Nose does the
                         # right thing and it tries to avoid executables,
                         # setuptools unfortunately forces our hand here.  This
                         # has been discussed on the distutils list and the
                         # setuptools devs refuse to fix this problem!
                         '--exe',
                         ]
     if '-a' not in argv and '-A' not in argv:
         argv = argv + ['-a', '!crash']
 
     if nose.__version__ >= '0.11':
         # I don't fully understand why we need this one, but depending on what
         # directory the test suite is run from, if we don't give it, 0 tests
         # get run.  Specifically, if the test suite is run from the source dir
         # with an argument (like 'iptest.py IPython.core', 0 tests are run,
         # even if the same call done in this directory works fine).  It appears
         # that if the requested package is in the current dir, nose bails early
         # by default.  Since it's otherwise harmless, leave it in by default
         # for nose >= 0.11, though unfortunately nose 0.10 doesn't support it.
         argv.append('--traverse-namespace')
 
     plugins = [ ExclusionPlugin(section.excludes), KnownFailure(),
                SubprocessStreamCapturePlugin() ]
     
     # we still have some vestigial doctests in core
     if (section.name.startswith(('core', 'IPython.core'))):
         plugins.append(IPythonDoctest())
         argv.extend([
             '--with-ipdoctest',
             '--ipdoctest-tests',
             '--ipdoctest-extension=txt',
         ])
 
     
     # Use working directory set by parent process (see iptestcontroller)
     if 'IPTEST_WORKING_DIR' in os.environ:
         os.chdir(os.environ['IPTEST_WORKING_DIR'])
     
     # We need a global ipython running in this process, but the special
     # in-process group spawns its own IPython kernels, so for *that* group we
     # must avoid also opening the global one (otherwise there's a conflict of
     # singletons).  Ultimately the solution to this problem is to refactor our
     # assumptions about what needs to be a singleton and what doesn't (app
     # objects should, individual shells shouldn't).  But for now, this
     # workaround allows the test suite for the inprocess module to complete.
     if 'kernel.inprocess' not in section.name:
         from IPython.testing import globalipapp
         globalipapp.start_ipython()
 
     # Now nose can run
     TestProgram(argv=argv, addplugins=plugins)
 
 if __name__ == '__main__':
     run_iptest()
 

setup.py

@@ -1,361 +1,361 b''
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 """Setup script for IPython.
 
 Under Posix environments it works like a typical setup.py script.
 Under Windows, the command sdist is not supported, since IPython
 requires utilities which are not available under Windows."""
 
 #-----------------------------------------------------------------------------
 #  Copyright (c) 2008-2011, IPython Development Team.
 #  Copyright (c) 2001-2007, Fernando Perez <[e-mail]>
 #  Copyright (c) 2001, Janko Hauser <[e-mail]>
 #  Copyright (c) 2001, Nathaniel Gray <[e-mail]>
 #
 #  Distributed under the terms of the Modified BSD License.
 #
 #  The full license is in the file COPYING.rst, distributed with this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Minimal Python version sanity check
 #-----------------------------------------------------------------------------
 from __future__ import print_function
 
 import sys
 
 # This check is also made in IPython/__init__, don't forget to update both when
 # changing Python version requirements.
 v = sys.version_info
 if v[:2] < (2,7) or (v[0] >= 3 and v[:2] < (3,3)):
     error = "ERROR: IPython requires Python version 2.7 or 3.3 or above."
     print(error, file=sys.stderr)
     sys.exit(1)
 
 PY3 = (sys.version_info[0] >= 3)
 
 # At least we're on the python version we need, move on.
 
 #-------------------------------------------------------------------------------
 # Imports
 #-------------------------------------------------------------------------------
 
 # Stdlib imports
 import os
 import shutil
 
 from glob import glob
 
 # BEFORE importing distutils, remove MANIFEST. distutils doesn't properly
 # update it when the contents of directories change.
 if os.path.exists('MANIFEST'): os.remove('MANIFEST')
 
 from distutils.core import setup
 
 # Our own imports
 from setupbase import target_update
 
 from setupbase import (
     setup_args,
     find_packages,
     find_package_data,
     check_package_data_first,
     find_entry_points,
     build_scripts_entrypt,
     find_data_files,
     check_for_readline,
     git_prebuild,
     check_submodule_status,
     update_submodules,
     require_submodules,
     UpdateSubmodules,
     get_bdist_wheel,
     CompileCSS,
     JavascriptVersion,
     css_js_prerelease,
     install_symlinked,
     install_lib_symlink,
     install_scripts_for_symlink,
     unsymlink,
 )
 
 isfile = os.path.isfile
 pjoin = os.path.join
 
 #-------------------------------------------------------------------------------
 # Handle OS specific things
 #-------------------------------------------------------------------------------
 
 if os.name in ('nt','dos'):
     os_name = 'windows'
 else:
     os_name = os.name
 
 # Under Windows, 'sdist' has not been supported.  Now that the docs build with
 # Sphinx it might work, but let's not turn it on until someone confirms that it
 # actually works.
 if os_name == 'windows' and 'sdist' in sys.argv:
     print('The sdist command is not available under Windows.  Exiting.')
     sys.exit(1)
 
 #-------------------------------------------------------------------------------
 # Make sure we aren't trying to run without submodules
 #-------------------------------------------------------------------------------
 here = os.path.abspath(os.path.dirname(__file__))
 
 def require_clean_submodules():
     """Check on git submodules before distutils can do anything
 
     Since distutils cannot be trusted to update the tree
     after everything has been set in motion,
     this is not a distutils command.
     """
     # PACKAGERS: Add a return here to skip checks for git submodules
     
     # don't do anything if nothing is actually supposed to happen
     for do_nothing in ('-h', '--help', '--help-commands', 'clean', 'submodule'):
         if do_nothing in sys.argv:
             return
 
     status = check_submodule_status(here)
 
     if status == "missing":
         print("checking out submodules for the first time")
         update_submodules(here)
     elif status == "unclean":
         print('\n'.join([
             "Cannot build / install IPython with unclean submodules",
             "Please update submodules with",
             "    python setup.py submodule",
             "or",
             "    git submodule update",
             "or commit any submodule changes you have made."
         ]))
         sys.exit(1)
 
 require_clean_submodules()
 
 #-------------------------------------------------------------------------------
 # Things related to the IPython documentation
 #-------------------------------------------------------------------------------
 
 # update the manuals when building a source dist
 if len(sys.argv) >= 2 and sys.argv[1] in ('sdist','bdist_rpm'):
 
     # List of things to be updated. Each entry is a triplet of args for
     # target_update()
     to_update = [
                   # FIXME - Disabled for now: we need to redo an automatic way
                   # of generating the magic info inside the rst.
                   #('docs/magic.tex',
                   #['IPython/Magic.py'],
                   #"cd doc && ./update_magic.sh" ),
 
                  ('docs/man/ipcluster.1.gz',
                   ['docs/man/ipcluster.1'],
                   'cd docs/man && gzip -9c ipcluster.1 > ipcluster.1.gz'),
 
                  ('docs/man/ipcontroller.1.gz',
                   ['docs/man/ipcontroller.1'],
                   'cd docs/man && gzip -9c ipcontroller.1 > ipcontroller.1.gz'),
 
                  ('docs/man/ipengine.1.gz',
                   ['docs/man/ipengine.1'],
                   'cd docs/man && gzip -9c ipengine.1 > ipengine.1.gz'),
 
                  ('docs/man/ipython.1.gz',
                   ['docs/man/ipython.1'],
                   'cd docs/man && gzip -9c ipython.1 > ipython.1.gz'),
 
                  ]
 
 
     [ target_update(*t) for t in to_update ]
 
 #---------------------------------------------------------------------------
 # Find all the packages, package data, and data_files
 #---------------------------------------------------------------------------
 
 packages = find_packages()
 package_data = find_package_data()
 
 data_files = find_data_files()
 
 setup_args['packages'] = packages
 setup_args['package_data'] = package_data
 setup_args['data_files'] = data_files
 
 #---------------------------------------------------------------------------
 # custom distutils commands
 #---------------------------------------------------------------------------
 # imports here, so they are after setuptools import if there was one
 from distutils.command.sdist import sdist
 from distutils.command.upload import upload
 
 class UploadWindowsInstallers(upload):
 
     description = "Upload Windows installers to PyPI (only used from tools/release_windows.py)"
     user_options = upload.user_options + [
         ('files=', 'f', 'exe file (or glob) to upload')
     ]
     def initialize_options(self):
         upload.initialize_options(self)
         meta = self.distribution.metadata
         base = '{name}-{version}'.format(
             name=meta.get_name(),
             version=meta.get_version()
         )
         self.files = os.path.join('dist', '%s.*.exe' % base)
 
     def run(self):
         for dist_file in glob(self.files):
             self.upload_file('bdist_wininst', 'any', dist_file)
 
 setup_args['cmdclass'] = {
     'build_py': css_js_prerelease(
             check_package_data_first(git_prebuild('IPython'))),
     'sdist' : css_js_prerelease(git_prebuild('IPython', sdist)),
     'upload_wininst' : UploadWindowsInstallers,
     'submodule' : UpdateSubmodules,
     'css' : CompileCSS,
     'symlink': install_symlinked,
     'install_lib_symlink': install_lib_symlink,
     'install_scripts_sym': install_scripts_for_symlink,
     'unsymlink': unsymlink,
     'jsversion' : JavascriptVersion,
 }
 
 ### Temporarily disable install while it's broken during the big split
 from textwrap import dedent
 from distutils.command.install import install
 
 class DisabledInstall(install):
     def run(self):
         msg = dedent("""
         While we are in the midst of The Big Split,
         IPython cannot be installed from master.
         You can use `pip install -e .` for an editable install,
         which still works.
         """)
         print(msg, file=sys.stderr)
         raise SystemExit(1)
 
 setup_args['cmdclass']['install'] = DisabledInstall
 
 
 #---------------------------------------------------------------------------
 # Handle scripts, dependencies, and setuptools specific things
 #---------------------------------------------------------------------------
 
 # For some commands, use setuptools.  Note that we do NOT list install here!
 # If you want a setuptools-enhanced install, just run 'setupegg.py install'
 needs_setuptools = set(('develop', 'release', 'bdist_egg', 'bdist_rpm',
            'bdist', 'bdist_dumb', 'bdist_wininst', 'bdist_wheel',
            'egg_info', 'easy_install', 'upload', 'install_egg_info',
             ))
 
 if len(needs_setuptools.intersection(sys.argv)) > 0:
     import setuptools
 
 # This dict is used for passing extra arguments that are setuptools
 # specific to setup
 setuptools_extra_args = {}
 
 # setuptools requirements
 
 pyzmq = 'pyzmq>=13'
 
 extras_require = dict(
     parallel = [pyzmq],
     qtconsole = [pyzmq, 'pygments'],
     doc = ['Sphinx>=1.1', 'numpydoc'],
     test = ['nose>=0.10.1', 'requests'],
     terminal = [],
-    nbformat = ['jsonschema>=2.0'],
+    nbformat = ['jupyter_nbformat'],
     notebook = ['tornado>=4.0', pyzmq, 'jinja2', 'pygments', 'mistune>=0.5'],
     nbconvert = ['pygments', 'jinja2', 'mistune>=0.3.1']
 )
 
 if not sys.platform.startswith('win'):
     extras_require['notebook'].append('terminado>=0.3.3')
 
 if sys.version_info < (3, 3):
     extras_require['test'].append('mock')
 
 extras_require['notebook'].extend(extras_require['nbformat'])
 extras_require['nbconvert'].extend(extras_require['nbformat'])
 
 install_requires = [
     'decorator',
     'pickleshare',
     'simplegeneric>0.8',
     'traitlets',
 ]
 
 # add platform-specific dependencies
 if sys.platform == 'darwin':
     install_requires.append('appnope')
     if 'bdist_wheel' in sys.argv[1:] or not check_for_readline():
         install_requires.append('gnureadline')
 
 if sys.platform.startswith('win'):
     extras_require['terminal'].append('pyreadline>=2.0')
 else:
     install_requires.append('pexpect')
 
 everything = set()
 for deps in extras_require.values():
     everything.update(deps)
 extras_require['all'] = everything
 
 if 'setuptools' in sys.modules:
     # setup.py develop should check for submodules
     from setuptools.command.develop import develop
     setup_args['cmdclass']['develop'] = require_submodules(develop)
     setup_args['cmdclass']['bdist_wheel'] = css_js_prerelease(get_bdist_wheel())
     
     setuptools_extra_args['zip_safe'] = False
     setuptools_extra_args['entry_points'] = {
         'console_scripts': find_entry_points(),
         'pygments.lexers': [
             'ipythonconsole = IPython.lib.lexers:IPythonConsoleLexer',
             'ipython = IPython.lib.lexers:IPythonLexer',
             'ipython3 = IPython.lib.lexers:IPython3Lexer',
         ],
     }
     setup_args['extras_require'] = extras_require
     requires = setup_args['install_requires'] = install_requires
 
     # Script to be run by the windows binary installer after the default setup
     # routine, to add shortcuts and similar windows-only things.  Windows
     # post-install scripts MUST reside in the scripts/ dir, otherwise distutils
     # doesn't find them.
     if 'bdist_wininst' in sys.argv:
         if len(sys.argv) > 2 and \
                ('sdist' in sys.argv or 'bdist_rpm' in sys.argv):
             print("ERROR: bdist_wininst must be run alone. Exiting.", file=sys.stderr)
             sys.exit(1)
         setup_args['data_files'].append(
             ['Scripts', ('scripts/ipython.ico', 'scripts/ipython_nb.ico')])
         setup_args['scripts'] = [pjoin('scripts','ipython_win_post_install.py')]
         setup_args['options'] = {"bdist_wininst":
                                  {"install_script":
                                   "ipython_win_post_install.py"}}
 
 else:
     # scripts has to be a non-empty list, or install_scripts isn't called
     setup_args['scripts'] = [e.split('=')[0].strip() for e in find_entry_points()]
 
     setup_args['cmdclass']['build_scripts'] = build_scripts_entrypt
 
 #---------------------------------------------------------------------------
 # Do the actual setup now
 #---------------------------------------------------------------------------
 
 setup_args.update(setuptools_extra_args)
 
 def main():
     setup(**setup_args)
 
 if __name__ == '__main__':
     main()