carry your own backall, and remove some debugging stuff

CMakeLists.txt

@@ -689,7 +689,11 @@ if (PYTHONLIBS_FOUND AND SWIG_FOUND)
     find_python_module(wheel)
     find_python_module(setuptools)
     find_python_module(backcall)
-    if (PY_JUPYTER AND PY_WHEEL AND PY_SETUPTOOLS AND PY_BACKCALL)
+    if (NOT FOUND_BACKALL)
+      #bring your own
+      execute_process( COMMAND  ${PYTHON_EXECUTABLE} -m pip install  ${CMAKE_SOURCE_DIR}/misc/backcall-0.1.0-cp36-none-any.whl)
+      endif()
+    if (PY_JUPYTER AND PY_WHEEL AND PY_SETUPTOOLS)
         add_subdirectory(packages/python/yap_kernel)
     ENDIF ()
 

info/meta.yaml

@@ -17,9 +17,7 @@ requirements:
     - pkgconfig
     - make
     - libxml2
-    - backcall
 run:
-    - backcall
     - jupyterlab
     - python
     - readline

packages/python/pyio.c

@@ -89,8 +89,9 @@ static bool getLine(int inp) {
   char *myrl_line = NULL;
     StreamDesc *rl_instream = YAP_RepStreamFromId(inp);
    term_t ctk = python_acquire_GIL();
+   fprintf(stderr,"in");
      PyObject*prompt  = PyUnicode_FromString( "?- "),
-  *msg = PyUnicode_FromString("");
+  *msg = PyUnicode_FromString(" **input** ");
   /* window of vulnerability opened */
   myrl_line = PyUnicode_AsUTF8(PyObject_CallFunctionObjArgs(rl_instream->u.private_data,msg,prompt,NULL));
   python_release_GIL(ctk);