Sorry for the noise. With this modification, the notebook server runs but at some unexpected moment it stops. I saw these error messages in log, maybe related:
Apr 24 14:10:08 sage-mtm saged.mtm[14139]: 2017-04-24T14:10:08+0200 [-] WSGI application error Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011Traceback (most recent call last): Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/python/threadpool.py", line 262, in <lambda> Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 inContext.theWork = lambda: context.call(ctx, func, *args, **kw) Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 return self.currentContext().callWithContext(ctx, func, *args, **kw) Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/python/context.py", line 83, in callWithContext Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.contexts.pop() Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/web/wsgi.py", line 521, in run Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.started = True Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011--- <exception caught here> --- Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/web/wsgi.py", line 499, in run Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.write(elem) Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/web/wsgi.py", line 454, in write Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.reactor, wsgiWrite, self.started) Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/internet/threads.py", line 122, in blockingCallFromThread Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 result.raiseException() Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "<string>", line 2, in raiseException Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011exceptions.AttributeError: 'NoneType' object has no attribute 'write' Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 Apr 24 14:10:08 sage-mtm saged.mtm[14139]: 2017-04-24T14:10:08+0200 [-] Unhandled Error Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011Traceback (most recent call last): Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/application/app.py", line 390, in startReactor Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.config, oldstdout, oldstderr, self.profiler, reactor) Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/application/app.py", line 311, in runReactorWithLogging Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 reactor.run() Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/internet/base.py", line 1194, in run Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.mainLoop() Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/internet/base.py", line 1203, in mainLoop Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.runUntilCurrent() Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011--- <exception caught here> --- Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/internet/base.py", line 798, in runUntilCurrent Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 f(*a, **kw) Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/web/wsgi.py", line 509, in wsgiError Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.request.loseConnection() Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 File "/usr/local/sage-7.6/local/lib/python2.7/site-packages/twisted/web/http.py", line 1345, in loseConnection Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 self.channel.loseConnection() Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011exceptions.AttributeError: 'NoneType' object has no attribute 'loseConnection' Apr 24 14:10:08 sage-mtm saged.mtm[14139]: #011 El lunes, 24 de abril de 2017, 20:32:08 (UTC+2), Enrique Artal escribió: > > Not sure either, but I changed the file. Anyway, probably the issue had to > do with the number of open files. I added the following lines in > limits.conf: > root soft nofile 655360 > sage soft nofile 655360 > root hard nofile 655360 > sage hard nofile 655360 > > (sage is the user owning sage notebooks). After a reboot the 7.6 notebooks > work OK. > > > El jueves, 20 de abril de 2017, 17:33:36 (UTC+2), Samuel Lelievre escribió: >> >> Not sure if this is related, but one thing that goes wrong with >> the upgrade to IPython 5.0 is that multiline output gets an >> extraneous blank line, for example instead of >> >> sage: identity_matrix(2) >> [1 0] >> [0 1] >> >> we get >> >> sage: identity_matrix(2) >> >> [1 0] >> [0 1] >> >> This is solved in IPython 5.3 but Sage has not upgraded to >> that version yet. You can fix this on your installation by editing >> the "prompts.py" file located at (from your SAGE_ROOT): >> >> local/lib/python/site-packages/IPython/terminal/prompts.py >> >> and replacing the definition of the RichPromptDisplayHook class >> by the version at >> >> >> https://github.com/takluyver/ipython/blob/83d273e24b28b9c06f0fa4f5bf90581db7c29be8/IPython/terminal/prompts.py >> >> ie >> >> ##### >> class RichPromptDisplayHook(DisplayHook): >> """Subclass of base display hook using coloured prompt""" >> def write_output_prompt(self): >> sys.stdout.write(self.shell.separate_out) >> # If we're not displaying a prompt, it effectively ends with a >> newline, >> # because the output will be left-aligned. >> self.prompt_end_newline = True >> >> if self.do_full_cache: >> tokens = self.shell.prompts.out_prompt_tokens() >> prompt_txt = ''.join(s for t, s in tokens) >> if prompt_txt and not prompt_txt.endswith('\n'): >> # Ask for a newline before multiline output >> self.prompt_end_newline = False >> >> if self.shell.pt_cli: >> self.shell.pt_cli.print_tokens(tokens) >> else: >> sys.stdout.write(prompt_txt) >> ##### >> >> In case this extra blank line is interpreted somehow >> as something returning None, this might explain why >> you get the error message you quote: >> >> TypeError: 'NoneType' object is not iterable >> >> Just a wild guess, maybe worth a try... >> > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. 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