diff --git a/.travis.yml b/.travis.yml
index 678d6f3..a13c9f6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,8 @@
 language: go
 
 go:
-  - 1.9.x
-  - 1.10.x
+  - 1.14.x
+  - 1.13.x
 
 before_install:
    - sudo apt-get update -qq
diff --git a/README.md b/README.md
index f79d2e4..2e82335 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,12 @@
 go-python
 =========
 
+**`sbinet/go-python` only supports CPython2. CPython2 isn't supported anymore by [python.org](https://python.org). Thus, `sbinet/go-python` is now archived.**
+**A possible alternative may be to use and contribute to [go-python/cpy3](https://github.com/go-python/cpy3) instead.**
+
 [![Build Status](https://travis-ci.org/sbinet/go-python.svg?branch=master)](https://travis-ci.org/sbinet/go-python)
 [![Build status](https://ci.appveyor.com/api/projects/status/n0ujg8no487a89vo/branch/master?svg=true)](https://ci.appveyor.com/project/sbinet/go-python/branch/master)
+[![GoDocs](https://godocs.io/github.com/sbinet/go-python?status.svg)](https://godocs.io/github.com/sbinet/go-python)
 
 Naive `go` bindings towards the C-API of CPython-2.
 
@@ -48,9 +52,9 @@ If ``go get`` + ``pkg-config`` failed:
 Documentation
 -------------
 
-Is available on ``godoc``:
+Is available on ``godocs``:
 
- http://godoc.org/github.com/sbinet/go-python
+ https://godocs.io/github.com/sbinet/go-python
 
 
 Example:
diff --git a/appveyor.yml b/appveyor.yml
index dbb5016..ad332c1 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -19,7 +19,7 @@ environment:
   CPYTHON2DIR: "C:\\Python27-x64"
   PATH: '%GOPATH%\bin;%CPYTHON2DIR%;%CPYTHON2DIR%\\Scripts;C:\msys64\mingw64\bin;C:\msys64\usr\bin\;%PATH%'
 
-stack: go 1.11
+stack: go 1.13
 
 build_script:
   - "%CPYTHON2DIR%\\python --version"
diff --git a/capi.go b/capi.go
index 2d8d777..deec35f 100644
--- a/capi.go
+++ b/capi.go
@@ -16,11 +16,13 @@ func Py_BuildValue(format string, args ...interface{}) *PyObject {
 // ml_doc	char *	points to the contents of the docstring
 type PyMethodDef struct {
 	Name  string // name of the method
-	Meth  func(self, args *PyObject) *PyObject
+	Meth  PyCFunction
 	Flags MethodDefFlags
 	Doc   string
 }
 
+type PyCFunction C.PyCFunction
+
 type MethodDefFlags int
 
 const (
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..8dc3bb5
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/sbinet/go-python
+
+go 1.13
diff --git a/heap.go b/heap.go
index d3a00a1..d5f0c27 100644
--- a/heap.go
+++ b/heap.go
@@ -24,7 +24,7 @@ func cpyMethodDefs(name string, methods []PyMethodDef) *C.PyMethodDef {
 	for i, meth := range methods {
 		cmeth := C.PyMethodDef{
 			ml_name:  C.CString(meth.Name),
-			ml_meth:  (C.PyCFunction)(unsafe.Pointer(&meth.Meth)),
+			ml_meth:  C.PyCFunction(meth.Meth),
 			ml_flags: C.int(meth.Flags),
 			ml_doc:   C.CString(meth.Doc),
 		}
@@ -43,6 +43,7 @@ func Py_InitModule(name string, methods []PyMethodDef) (*PyObject, error) {
 
 	obj := togo(C._gopy_InitModule(c_mname, cmeths))
 	if obj == nil {
+		PyErr_Print()
 		return nil, errors.New("python: internal error; module creation failed.")
 	}
 	return obj, nil
@@ -59,6 +60,7 @@ func Py_InitModule3(name string, methods []PyMethodDef, doc string) (*PyObject,
 
 	obj := togo(C._gopy_InitModule3(cname, cmeths, cdoc))
 	if obj == nil {
+		PyErr_Print()
 		return nil, errors.New("python: internal error; module creation failed.")
 	}
 	return obj, nil