python 動態庫m.so.1.0錯誤

$ python -V 
python: error while loading shared libraries: libpython3.6m.so.1.0: cannot open shared object file: No such file or directory

ldd是列出動態庫依賴關係：

$ ldd /usr/local/bin/python3.6

linux-vdso.so.1 =>  (0x00007fffecbba000)
libpython3.6m.so.1.0 => not found
libpthread.so.0 => /usr/lib64/libpthread.so.0 (0x00007fe1400ff000)
libdl.so.2 => /usr/lib64/libdl.so.2 (0x00007fe13fefb000)
libutil.so.1 => /usr/lib64/libutil.so.1 (0x00007fe13fcf8000)
libm.so.6 => /usr/lib64/libm.so.6 (0x00007fe13f9f6000)
libc.so.6 => /usr/lib64/libc.so.6 (0x00007fe13f628000)
/lib64/ld-linux-x86-64.so.2 (0x00007fe14031b000)

查找動態庫：

$ find / -name 'libpython3.6m.so.1.0'

/root/Python-3.6.9/libpython3.6m.so.1.0
/usr/local/lib/libpython3.6m.so.1.0

(2)將libpython3.6m.so.1.0文件路徑的目錄添加到/etc/ld.so.conf :

$ vim /etc/ld.so.conf 　　文件末尾新添加一行，/usr/local/lib/

(3)保存，使得修改生效：

$ ldconfig