guile-python

WARNING: WIP

The project is still in an experimental stage. There should be unknown bugs and missing components.

(use-modules (python import))

(import http.server)
(import socketserver)

(let* ((handler #.http.server.SimpleHTTPRequestHandler)
       (httpd (#.socketserver.TCPServer #("" 8000) handler)))
  (#.httpd.serve-forever))

guile-python provides seamless interface to Python from GNU Guile.

Requirements

• GNU Guile 2.2+
• Python 3.3+

Installation

$ ./bootstrap
$ ./configure
$ make
$ sudo make install

Usage

guile-python consists of three modules, (python eval), (python import) and (python core):

• (python eval) provides a few procedures to run python code given as string.
• (python import) provides import macro (note that this shadows built-in import) and #. syntax, which allows python-style member accessing.
• (python core) is a core module used internally.

Python object is converted to Scheme object according to the following table:

Python	Scheme
Integer	Integer
Float	Real
Bytes	Bytevector
String	String
List	List
Tuple	Vector
Dictionary	Hash table
True	#t
False	#f
None	#nil
Callable object	Procedure
Object	Python object (wrapped pointer)

Module:(python eval)

• Procedure:python-eval code
      Equivelent to eval(code) in Python. Returns evaluation result.

• Procedure:python-exec code
      Equivelent to exec(code) in Python. Returns #t.

Module:(python import)

• Macro:import module
      Equivelent to import module in Python. Note that this shadows built-in import.

• Reader Extension:#.object.attribute...
      Equivelent to foo.bar... in Python. The value is automatically converted between Python and Scheme.
      Python's foo_bar can be written foo-bar in Scheme.

Author

TANI Kojiro ([email protected])

License

guile-python is distributed under GPLv3.