Offline package download
After decompression, the python3 setup.py install
installation prompts the error as follows:
Open the location of the offline package
Add the following content to the header file
#if PY_VERSION_HEX >= 0x03000000
#define NUMPY_IMPORT_ARRAY_RETVAL NULL
#else
#define NUMPY_IMPORT_ARRAY_RETVAL
#endif
Install successfully again python3 setup.py install