Crate list_compression

A crate that provides MBEs to simulate the 'lists by understanding' of python in Rust almost like a zero-cost abstraction.

Macros

py_list	This macro takes an expression to use in a for loop, a pattern for this, a collection and an optional boolean expression, all of them separated with commas.
py_list_extern	This macro takes an expression, a pattern, a collection, an optional boolean expression and,if the last is present,zero or more variables to pass a reference into.
py_list_extern_mut	This macro takes an expression, a pattern, a collection, an optional boolean expression and,if the last is present,zero or more variables to pass a reference into the macro.