Why: python3.11: error while loading shared libraries: libpython3.11.so.1.0: cannot open shared object file: No such file or directory

On Ubuntu, Python3.11 cannot find libpython3.11.so.1.0.

Here is my system information:

PRETTY_NAME="Ubuntu 24.04.1 LTS"NAME="Ubuntu"VERSION_ID="24.04"VERSION="24.04.1 LTS (Noble Numbat)VERSION_CODENAME=nobleID=ubuntuID_LIKE=debianHOME_URL="https://www.ubuntu.com/"SUPPORT_URL="https://help.ubuntu.com/"BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"UBUNTU_CODENAME=nobleLOGO=ubuntu-logo

On my system, I have installed python3 and python3-dev, with versions python3.12.3.At the same time, I compiled Python 3.12.7 using the following compilation instructions:

./configure --enable-loadable-sqlite-extensions --enable-optimizations --with-lto=full --enable-sharedmakemake altinstall

Then everything is normal, here are the details:

linux-vdso.so.1 (0x00007ffdbd726000)libpython3.12.so.1.0 => /usr/local/lib/libpython3.12.so.1.0 (0x000077c52ea00000)libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x000077c52e600000)libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x000077c52f165000)/lib64/ld-linux-x86-64.so.2 (0x000077c52f26a000)

However, when I need to install other versions of Python, such as Python3.11.10, issues arise.

The compilation configuration is identical to that of Python3.12, but the following problem occurs:

python3.11: error while loading shared libraries: libpython3.11.so.1.0: cannot open shared object file: No such file or directory

I resolved the issue by doing the following:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

However, I don't understand why this problem occurred. Was there a configuration error somewhere?

Here is the detailed information:

> ll /usr/local/lib/drwxr-xr-x  5 root root     4096 Oct  3 13:42 ./drwxr-xr-x 10 root root     4096 Apr 24 18:47 ../lrwxrwxrwx  1 root root       20 Oct  3 13:42 libpython3.11.so -> libpython3.11.so.1.0*-rwxr-xr-x  1 root root 25185720 Oct  3 13:42 libpython3.11.so.1.0*lrwxrwxrwx  1 root root       20 Oct  2 16:19 libpython3.12.so -> libpython3.12.so.1.0*-rwxr-xr-x  1 root root 31234664 Oct  2 16:19 libpython3.12.so.1.0*-rwxr-xr-x  1 root root    15088 Oct  3 13:42 libpython3.so*drwxr-xr-x  2 root root     4096 Oct  3 13:42 pkgconfig/drwxr-xr-x 39 root root     4096 Oct  3 13:42 python3.11/drwxr-xr-x 40 root root     4096 Oct  2 16:19 python3.12/

The default environment variable LD_LIBRARY_PATH is empty.

Other:

> readelf -d /usr/local/bin/python3.12Dynamic section at offset 0x2db8 contains 28 entries: 0x0000000000000001 (NEEDED)             Shared library: [libpython3.12.so.1.0] 0x0000000000000001 (NEEDED)             Shared library: [libc.so.6] 0x000000000000000c (INIT)               0x1000 0x000000000000000d (FINI)               0x115c 0x0000000000000019 (INIT_ARRAY)         0x3da8 0x000000000000001b (INIT_ARRAYSZ)       8 (bytes) 0x000000000000001a (FINI_ARRAY)         0x3db0 0x000000000000001c (FINI_ARRAYSZ)       8 (bytes) 0x000000006ffffef5 (GNU_HASH)           0x3b0 0x0000000000000005 (STRTAB)             0x548 0x0000000000000006 (SYMTAB)             0x3f8 0x000000000000000a (STRSZ)              222 (bytes) 0x000000000000000b (SYMENT)             24 (bytes) 0x0000000000000015 (DEBUG)              0x0 0x0000000000000003 (PLTGOT)             0x3fb8 0x0000000000000002 (PLTRELSZ)           24 (bytes) 0x0000000000000014 (PLTREL)             RELA 0x0000000000000017 (JMPREL)             0x738 0x0000000000000007 (RELA)               0x678 0x0000000000000008 (RELASZ)             192 (bytes) 0x0000000000000009 (RELAENT)            24 (bytes) 0x000000000000001e (FLAGS)              BIND_NOW 0x000000006ffffffb (FLAGS_1)            Flags: NOW PIE 0x000000006ffffffe (VERNEED)            0x648 0x000000006fffffff (VERNEEDNUM)         1 0x000000006ffffff0 (VERSYM)             0x626 0x000000006ffffff9 (RELACOUNT)          3 0x0000000000000000 (NULL)               0x0

readelf -d /usr/local/bin/python3.11Dynamic section at offset 0x2db8 contains 28 entries: 0x0000000000000001 (NEEDED)             Shared library:[libpython3.11.so.1.0] 0x0000000000000001 (NEEDED)             Shared library: [libc.so.6] 0x000000000000000c (INIT)               0x1000 0x000000000000000d (FINI)               0x115c 0x0000000000000019 (INIT_ARRAY)         0x3da8 0x000000000000001b (INIT_ARRAYSZ)       8 (bytes) 0x000000000000001a (FINI_ARRAY)         0x3db0 0x000000000000001c (FINI_ARRAYSZ)       8 (bytes) 0x000000006ffffef5 (GNU_HASH)           0x3b0 0x0000000000000005 (STRTAB)             0x548 0x0000000000000006 (SYMTAB)             0x3f8 0x000000000000000a (STRSZ)              222 (bytes) 0x000000000000000b (SYMENT)             24 (bytes) 0x0000000000000015 (DEBUG)              0x0 0x0000000000000003 (PLTGOT)             0x3fb8 0x0000000000000002 (PLTRELSZ)           24 (bytes) 0x0000000000000014 (PLTREL)             RELA 0x0000000000000017 (JMPREL)             0x738 0x0000000000000007 (RELA)               0x678 0x0000000000000008 (RELASZ)             192 (bytes) 0x0000000000000009 (RELAENT)            24 (bytes) 0x000000000000001e (FLAGS)              BIND_NOW 0x000000006ffffffb (FLAGS_1)            Flags: NOW PIE 0x000000006ffffffe (VERNEED)            0x648 0x000000006fffffff (VERNEEDNUM)         1 0x000000006ffffff0 (VERSYM)             0x626 0x000000006ffffff9 (RELACOUNT)          3 0x0000000000000000 (NULL)               0x0