After upgrading de notebook indicates the following error:
sage: notebook()
The notebook files are stored in: sage_notebook.sagenb
┌────────────────────────────────────────────────┐
│ │
│ Open your web browser to http://localhost:8080 │
│ │
└────────────────────────────────────────────────┘
Executing twistd --pidfile="sage_notebook.sagenb/sagenb.pid" -ny
"sage_notebook.sagenb/twistedconf.tac"
Unhandled Error
Traceback (most recent call last):
File
"/usr/lib/python3.5/site-packages/Twisted-16.2.0-py3.5.egg/twisted/application/app.py",
line 643, in run
runApp(config)
File
"/usr/lib/python3.5/site-packages/Twisted-16.2.0-py3.5.egg/twisted/scripts/twistd.py",
line 25, in runApp
_SomeApplicationRunner(config).run()
File
"/usr/lib/python3.5/site-packages/Twisted-16.2.0-py3.5.egg/twisted/application/app.py",
line 374, in run
self.application = self.createOrGetApplication()
File
"/usr/lib/python3.5/site-packages/Twisted-16.2.0-py3.5.egg/twisted/application/app.py",
line 439, in createOrGetApplication
application = getApplication(self.config, passphrase)
--- <exception caught here> ---
File
"/usr/lib/python3.5/site-packages/Twisted-16.2.0-py3.5.egg/twisted/application/app.py",
line 450, in getApplication
application = service.loadApplication(filename, style, passphrase)
File
"/usr/lib/python3.5/site-packages/Twisted-16.2.0-py3.5.egg/twisted/application/service.py",
line 411, in loadApplication
passphrase)
File
"/usr/lib/python3.5/site-packages/Twisted-16.2.0-py3.5.egg/twisted/persisted/sob.py",
line 223, in loadValueFromFile
codeObj = compile(data, filename, "exec")
builtins.SyntaxError: Missing parentheses in call to 'print'
(twistedconf.tac, line 21)
Failed to load application: Missing parentheses in call to 'print'
(twistedconf.tac, line 21)
---------------------------------------------------------------------------
error Traceback (most recent call last)
<ipython-input-1-3728cb3d7c7d> in <module>()
----> 1 notebook()
/usr/share/sage/source/sage/misc/lazy_import.pyx in
sage.misc.lazy_import.LazyImport.__call__
(/build/sagemath/src/sage-7.2/src/build/cythonized/sage/misc/lazy_import.c:3629)()
384 True
385 """
--> 386 return self._get_object()(*args, **kwds)
387
388 def __repr__(self):
/usr/lib/python2.7/site-packages/sagenb/notebook/notebook_object.pyc in
__call__(self, *args, **kwds)
237 """
238 def __call__(self, *args, **kwds):
--> 239 return self.notebook(*args, **kwds)
240
241 notebook = run_notebook.notebook_run
/usr/lib/python2.7/site-packages/sagenb/notebook/run_notebook.pyc in
notebook_run(self, directory, port, interface, port_tries, secure, reset,
accounts, openid, server_pool, ulimit, timeout, doc_timeout, upload,
automatic_login, start_path, fork, quiet, server, profile, subnets,
require_login, open_viewer, address)
638 os.chdir(cwd)
639 if e == 256:
--> 640 raise socket.error
641
642 def get_admin_passwd():
error:
This happens with other notebooks.
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