It's
Thanksgiving weekend at least in the U.S., pal...
*Burp!* 
We were all taking the day off, watching football for no particular reason, and groaning at our indulgences before finding room for just
one more slice of pumpkin pie.
The first thing I'd do is to execute
/sbin/ldconfig as root. This is to make sure that the loader's cache is up-to-date and that the right libraries are being loaded.
Please explain in more detail exactly what you did. What files in, say,
/lib, /usr/lib, and any other libraries listed in
/etc/ld.so.conf have been updated?
The segmentation fault specifically mentions a library for the Python language (I think...). Might be good to search for that particular file-name. If the file, and all libraries near to it, are still
old, then there is a better chance that the message is spurious,
e.g. caused by a loader-cache problem or somesuch. The fact that it seems to be affecting several apps at once (check the command-line: which libraries do
they complain about?) suggests either a global problem, like the cache, or the presence of what should be a
very distinct "common thread."