I am trying to get the basic example running from https://github.com/osquery/osquery-python but it seems like there is something I am missing.

mgeorge-host:~ mgeorge$ osqueryi --allow_unsafe --verbose --extension /Users/mgeorge/my_table_plugin.ext
I0530 13:22:13.160519 2986918720 init.cpp:388] osquery initialized [version=3.2.4]
I0530 13:22:13.160634 2986918720 extensions.cpp:345] Could not autoload extensions: Failed reading: /var/osquery/extensions.load
I0530 13:22:13.162147 132878336 watcher.cpp:588] Created and monitoring extension child (65644): /Users/mgeorge/my_table_plugin.ext
I0530 13:22:13.162221 134488064 interface.cpp:324] Extension manager service starting: /var/folders/zh/s593q5x104z6wghtmm6x674xy34n4f/T/osquery-20468/shell.em
I0530 13:22:13.163504 132878336 process.cpp:172] Could not start extension process: /Users/mgeorge/my_table_plugin.ext
libc++abi.dylib: terminating