-v, --verbose Be verbose, print file names on multiple compilation
-p, --embed-positions If specified, the positions in Cython files of each
function definition is embedded in its docstring.
- -z, --pre-import <module> If specified, assume undeclared names in this
- module. Emulates the behavior of putting
- "from <module> import *" at the top of the file.
--cleanup <level> Release interned objects on python exit, for memory debugging.
Level indicates aggressiveness, default 0 releases nothing.
-w, --working <directory> Sets the working directory for Cython (the directory modules