SSL Exception Occurs During MetaPhlAn Installation

Symptom

When installing MetaPhlAn, a message is displayed indicating that the SSL module is unavailable.

Key Process and Cause Analysis

The SSL module is unavailable.

Conclusion and Solution

1. Recompile Python and add the following compilation options after configure:

   ./configure --prefix=/path/to/Python-3.9.6  --enable-shared --enable-optimizations

2. Perform the installation.

   make
   make install