Dominique gave the right hint because the folder in the env variable didn't exist:
sage: env SAGE_DOC '/usr/share/doc/sage' The problem is solved by installing the package 'community/sagemath-doc 6.7-1' (on Manjaro Linux) and we can check: $ ls /usr/share/doc/sage/ ca/ common/ de/ en/ fr/ hu/ it/ output/ pt/ ru/ tr/ Now the question mark works again but as Volker noticed if you have a "conf.py" file in your working directory you will get an error. Thank you! Le mardi 9 juin 2015 00:17:17 UTC+2, Volker Braun a écrit : > > This is now http://trac.sagemath.org/ticket/18642 > > On Tuesday, June 9, 2015 at 12:11:52 AM UTC+2, Volker Braun wrote: >> >> You have a file named "conf.py" in the current working directory. A >> workaround is to start Sage in a different directory. >> >> >> >> On Monday, June 8, 2015 at 3:01:52 PM UTC+2, François Colas wrote: >>> >>> Hello everyone, >>> >>> I'm facing an error with the question mark after any kind of function. >>> Here is an error log with 'PolynomialRing' : >>> https://gist.github.com/anonymous/f9adbc3ec08dac0892a6 >>> >>> I cannot access the documentation with '?' but it works with : >>> >>> sage: help(PolynomialRing) >>> >>> I'm running Manjaro Linux (an arch-based distribution) with these >>> packages installed : >>> >>> - community/sagemath 6.7-1 >>> - extra/python2 2.7.10-1 >>> - community/ipython2 3.1.0-1 >>> >>> Everything used to work before some updates... (Sage 6.6 -> 6.7?) >>> >>> Any ideas on how I could fix that? >>> >> -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.