Small library to dynamically create Python functions

 makefun helps one create functions dynamically, with the signature of their
 choice. It was largely inspired by decorator and functools, and created mainly
 to cover some of their limitations.
 .
 Its typical use cases are:
 .
  - creating signature-preserving function wrappers - just like functools.wraps
    but with accurate TypeError exception raising when user-provided arguments
    are wrong, and with a very convenient way to access argument values;
 .
  - creating function wrappers that have more or less arguments that the
    function they wrap;
 .
  - more generally, creating functions with a signature derived from a
    reference signature;
 .
  - or even creating functions with a signature completely defined at runtime.