我使用安装了umfpack ,并尝试导入umfpack模块。/pyfrbus_package/venv/lib/python3.9/site-packages/scikits/umfpack/_umfpack.py", line 18, in swig_import_helper/venv/lib/python3.9/site-packages/scikits/umf
/elmerfem/umfpack/src/umfpack/include/umf_internal.h:29:10: fatal error: 'string.h' file not found ^~~~~~~~~~make[2]: *** [umfpack/src/umfpack/umfpack<
in spsolve File "/usr/lib/python2.7/dist-packages/scipy/sparse/linalg/dsolve/umfpack/umfpack.py", line 603, in linsolve File "/usr/lib/python2.7/dist-packa