One thing I really miss when writing Common Lisp code is access to Python libraries, both standard library and third party modules. CLPython provides a limited subset of Python
You may want to try burgled-batteries, a bridge between Python and Lisp (FFI bindings, etc.).
From the description, "burgled-batteries provides a shim between Python (specifically, the CPython implementation of Python) and Common Lisp."
burgled-batteries