Is your Sage built from source, or you downloaded a binary installation? Anyway, I see what happens. For some strange reason it picks up wrong Twisted, the one for Python 3. You can see it from the log below, and the error message is the one you get by trying to use Python 2 style print statements in Python 3. How could this have happened is a mystery to me.
Could you try (re)installing Sage's Twisted package, by running sage -i twisted and see if this helps? On Saturday, June 4, 2016 at 2:14:15 PM UTC+1, czsan wrote: > > 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. > > > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
