$ python -V
python: error while loading shared libraries: libpython3.6m.so.1.0: cannot open shared object file: No such file or directory
ldd是列出动态库依赖关系：
$ ldd /usr/local/bin/python3.6
linux-vdso.so.1 => (0x00007fffecbba000)
libpython3.6m.so.1.0 => not found
libpthread.so.0 => /usr/lib64/libpthrea
