Hi! Related with #8523, I'd like to know how one tests whether some package (here: database_gap) is already installed. I don't care what exact version it is.
I understood that the script SAGE_ROOT/spkg/standard/newest_version can be used. I was reading somewhere that this script is supposed to be called in SAGE_ROOT/spkg. But calling ./newest_version database_gap fails as follows: > standard/newest_version database_gap /bin/ls: cannot access database_gap-*.spkg: No such file or directory > standard/newest_version optional/database_gap /bin/ls: cannot access optional/database_gap-*.spkg: No such file or directory But: > ls optional/database_gap-4.4.1* optional/database_gap-4.4.10.spkg optional/database_gap-4.4.12.spkg So, I ended up using it directly in SAGE_ROOT/spkg/optional/, which works: > ../standard/newest_version database_gap database_gap-4.4.12 But is this really how it is supposed to work? Another problem: It may happen that someone installs an optional package in a way that there is no .spkg file in SAGE_ROOT/spkg/ optional/. Instead, there only is a file in SAGE_ROOT/spkg/ installed/., but this file does not have an .spkg extension. Shouldn't SAGE_ROOT/spkg/standard/newest_version better look for (non- spkg) files in SAGE_ROOT/spkg/installed/? Or what else can one do to test if a package is installed? Best regards, Simon -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org To unsubscribe from this group, send email to sage-devel+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
