libpthread version

[sandeep t]

Ive written some application in python on RHEL3. For some reason the python never returns. I tried different versions of pythons. but no luck.
I guess there could be a problem of libpthread.
I found two different libpthreads on my machine.
$ ls -l /lib/tls/libpthread.so.0
lrwxrwxrwx 1 root root 18 Feb 8 06:47 /lib/tls/libpthread.so.0 -> libpthread-0.60.so

$ ls -l /lib/libpthread.so.0
lrwxrwxrwx 1 root root 18 Feb 8 06:47 /lib/libpthread.so.0 -> libpthread-0.10.so


Can anyone please tell me the difference between the two libraries above. ?
Also, the glibc2.3.2 is installed on my machine, then why the libpthread is "0.60" ?

Also, if I want to upgrade my lib/tls/libpthread-0.6.so to lib/tls/libpthread-2.3.4.so or so.. do I need glibc-2.3.4 and above??

Thanks in advance..

[sandeep t]

Please reply.. I just want to know if this is a python issue or libpthread issue.
The part of output of "pstack (python process id)" is :
.....
Thread 1 (Thread -1218543488 (LWP 12649)):
#0 0x00c2e15b in sem_wait@GLIBC_2.0 () from /lib/tls/libpthread.so.0
#1 0x00000004 in ?? ()
#2 0x080cf479 in PyThread_acquire_lock ()
......