How to install plpython3u on PostgreSQL under MacOS?

Question

Python

Need to use plpython3u on PostgreSQL, but the compiler throws this error

ERROR:  could not load library "/Library/PostgreSQL/11/lib/postgresql/plpython3.so": dlopen(/Library/PostgreSQL/11/lib/postgresql/plpython3.so, 10): Library not loaded: /Library/edb/languagepack/v1/Python-3.7/lib/libpython3.7m.dylib
  Referenced from: /Library/PostgreSQL/11/lib/postgresql/plpython3.so
  Reason: image not found
SQL state: 58P01