Naive 'go' bindings towards the C-API of CPython
this package provides a go
package named "python" under which most of the PyXYZ
functions and macros of the public C-API of CPython have been exposed.
theoretically, you should be able to just look at:
http://docs.python.org/c-api/index.html
and know what to type in your go
program.
this package also provides an executable "go-python" which just loads "python" and then call python.Py_Main(os.Args)
.
the rational being that under such an executable, go
based extensions for C-Python would be easier to implement (as this usually means calling into go
from C
through some rather convoluted functions hops)
With Go 1
and the go
tool, cgo
packages can't pass anymore additional CGO_CFLAGS
from external programs (except pkg-config
) to the "fake" #cgo
preprocessor directive.
So one has to do instead:
$ mkdir -p $GOPATH/src/github.com/sbinet
$ cd $GOPATH/src/github.com/sbinet
$ git clone http://github.com/sbinet/go-python
$ cd go-python && make
or (if you are into one-liners):
$ CGO_CFLAGS="-I/usr/include/python2.7" \
CGO_LDFLAGS="-lpython2.7 -L/usr/lib" \
go get github.com/sbinet/go-python
Note: you'll need the proper header and python
development environment. On Debian, you'll need to install the python-all-dev
package
Is available on godoc
:
http://godoc.org/github.com/sbinet/go-python
package main
import "fmt"
import "github.com/sbinet/go-python"
func init() {
err := python.Initialize()
if err != nil {
panic(err.Error())
}
}
func main() {
gostr := "foo"
pystr := python.PyString_FromString(gostr)
str := python.PyString_AsString(pystr)
fmt.Println("hello [", str, "]")
}
$ go run ./main.go
hello [ foo ]
-
fix handling of integers (I did a poor job at making sure everything was ok)
-
add CPython unit-tests
-
do not expose
C.FILE
pointer and replace it withos.File
in "go-python" API -
provide an easy way to extend go-python with
go
based extensions -
think about the need (or not) to translate CPython exceptions into go panic/recover mechanism
-
use SWIG to automatically wrap the whole CPython api ?