How to install plpython3u on PostgreSQL under MacOS?

You need to use the plpython3u to PostgreSQL, but the compiler displays this error
ERROR: could not load library "/Library/PostgreSQL/11/lib/postgresql/": dlopen(/Library/PostgreSQL/11/lib/postgresql/, 10): Library not loaded: /Library/edb/languagepack/v1/Python-3.7/lib/libpython3.7m.dylib
 Referenced from: /Library/PostgreSQL/11/lib/postgresql/
 Reason: image not found
SQL state: 58P01
April 4th 20 at 13:08
0 answer

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