python

C/write.c

@@ -1137,7 +1137,7 @@ void Yap_plwrite(Term t, StreamDesc *mywrite, int max_depth, int flags,
   rwt.parent = NULL;
   wglb.Ignore_ops = flags & Ignore_ops_f;
   wglb.Write_strings = flags & BackQuote_String_f;
-  if (!(flags & Ignore_cyclics_f) && Yap_do_low_level_trace) {
+  if (!(flags & Ignore_cyclics_f) && false) {
     Term ts[2];
     Yap_do_low_level_trace=false;
     Yap_DebugPlWriteln(t);

packages/python/pl2py.c

@@ -1,4 +1,5 @@
 
+
 #include "Yap.h"
 
 #include "py4yap.h"
@@ -259,8 +260,6 @@ PyObject *term_to_python(term_t t, bool eval, PyObject *o, bool cvt) {
         return out;
       } else {
         PyObject *no = find_term_obj(o, &t0, false);
-        if (no == o)
-          return NULL;
         return yap_to_python(t0, eval, no, cvt);
       }
     } else {
@@ -418,7 +417,7 @@ PyObject *term_to_python(term_t t, bool eval, PyObject *o, bool cvt) {
               PL_reset_term_refs(arg);
               YAPPy_ThrowError(SYSTEM_ERROR_INTERNAL, t, "t(...)->python");
             }
-            PyObject *a = term_to_python(arg, eval, o, cvt);
+            PyObject *a = term_to_python(arg, eval, NULL, cvt);
             if (a) {
               if (PyTuple_SetItem(rc, i, a) < 0) {
                 PL_reset_term_refs(arg);

packages/python/py2pl.c

@@ -226,7 +226,7 @@ bool python_assign(term_t t, PyObject *exp, PyObject *context) {
       return python_to_term(exp, t);
   }
 
-  case PL_STRING: {
+  case PL_STRING: {             
     char *s = NULL;
     size_t l;
     PL_get_string_chars(t, &s,&l);

packages/python/pybips.c

@@ -12,21 +12,29 @@
 #include "py4yap.h"
 
 static PyObject *finalLookup(PyObject *i, const char *s) {
-  PyObject *rc;
+  PyObject *os = PyUnicode_FromString(s), *rc = NULL;
   if (i == NULL)
     return NULL;
+  
   if (strcmp(s, "none") == 0)
     return Py_None;
-  if (PyDict_Check(i)) {
-    if ((rc = PyDict_GetItemString(i, s)))
-      return rc;
-  }
   if (PyModule_Check(i)) {
-    if ((rc = PyDict_GetItemString(i, s)))
-      return rc;
+   i = PyModule_GetDict(i);
+   }  
+
+  if (PyDict_Check(i))
+  {
+    if (PyDict_Contains(i, os) == 1) {
+      rc = PyDict_GetItem(i, os);
   }
-  if (PyObject_HasAttrString(i, s)) {
-    return PyObject_GetAttrString(i, s);
+  }
+ if (!rc && PyObject_HasAttr(i, os)) {
+    rc = PyObject_GetAttr(i, os);
+  }
+  if (rc)
+  {
+      Py_IncRef(rc);
+      return rc;
   }
   return NULL;
 }
@@ -69,6 +77,10 @@ PyObject *lookupPySymbol(const char *sp, PyObject *pContext, PyObject **duc) {
   if ((out = finalLookup(py_Builtin, sp))) {
     return out;
   }
+  if ((out = finalLookup(py_Atoms, sp)))
+  {
+    return out;
+  }
   PyObject *py_Local = PyEval_GetLocals();
   if ((out = finalLookup(py_Local, sp)) && out != Py_None) {
     return out;
@@ -479,7 +491,7 @@ static PyObject *bip_sum(term_t t) {
       }
 #if PY_MAJOR_VERSION < 3
       if (PyInt_CheckExact(item)) {
-        764PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter);
+          PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter);
                                return 0)f_result += (double)PyInt_AS_LONG(item);
         PyFPE_END_PROTECT(f_result) Py_DECREF(item);
         continue;
@@ -1079,6 +1091,8 @@ PyObject *compound_to_pyeval(term_t t, PyObject *context, bool cvt) {
 	  PyObject *key = PyUnicode_FromString(sk);
 	  AOK(PL_get_arg(2, tleft, tleft), NULL);
           PyObject *val = term_to_python(tleft, true, o, cvt);
+          if (val == NULL)
+            return NULL;
           PyDict_SetItem(pyDict, key, val);
         } else {
           indict = false;
@@ -1110,9 +1124,9 @@ PyObject *compound_to_pyeval(term_t t, PyObject *context, bool cvt) {
 
     PyObject *rc;
     if (ys && PyCallable_Check(ys)) {
-      PyObject_Print(ys, stderr, 0);
-       PyObject_Print(pArgs, stderr, 0);
-       PyObject_Print(pyDict, stderr, 0);
+      //PyObject_Print(ys, stderr, 0);
+      // PyObject_Print(pArgs, stderr, 0);
+      // PyObject_Print(pyDict, stderr, 0);
 
       // PyObject_Print(pArgs, stderr, 0);
       // PyObject_Print(o, stderr, 0);

packages/python/pyio.c

@@ -131,7 +131,7 @@ static bool py_close(int sno) {
 static bool pygetLine(StreamDesc *rl_iostream, int sno) {
   // term_t ctk = python_acquire_GIL();
   const char *myrl_line;
-  PyObject *user_line;
+  PyObject *user_line, *prompt;
   StreamDesc *s = YAP_GetStreamFromId(sno);
   //term_t tg = python_acquire_GIL();
   if (!strcmp(RepAtom(s->name)->StrOfAE,"input") ) {
@@ -144,10 +144,10 @@ static bool pygetLine(StreamDesc *rl_iostream, int sno) {
     Yap_ThrowError(SYSTEM_ERROR_GET_FAILED, YAP_MkIntTerm(sno), err);
   }
     }
-    user_line = PyObject_CallFunctionObjArgs(pystream, NULL);
+    user_line = PyObject_CallFunctionObjArgs(pystream, PyUnicode_FromString("?- ") , NULL);
   } else {    
   PyObject *readl = PyObject_GetAttrString(s->u.private_data, "readline");
-  user_line = PyObject_CallFunction(readl, NULL);
+  user_line = PyObject_CallFunction(readl, PyUnicode_FromString("?- ")      , NULL);
   }
   myrl_line = PyUnicode_AsUTF8(user_line);
   if (myrl_line == NULL)

packages/python/pypreds.c

@@ -648,7 +648,7 @@ static int python_import(term_t mname, term_t mod) {
     foreign_t rc = address_to_term(pModule, mod);
 
     if (do_as) {
-      PyObject_SetAttrString(py_Main, as, pModule);
+      PyModule_AddObject(py_Main, as, pModule);
     }
     python_release_GIL(t0);
     pyErrorAndReturn(rc);

packages/python/yap_kernel/yap_ipython/yapi.py

@@ -648,6 +648,7 @@ class YAPRun:
             raw_cell, store_history, silent, shell_futures)
 
         self.result = interactiveshell.ExecutionResult(info)
+        self.result.error_before_exec = None
 
         if (raw_cell == "") or raw_cell.isspace():
             self.shell.last_execution_succeeded = True

packages/swig/yap.i

@@ -35,7 +35,7 @@ class YAPEngine;
 #if defined(SWIGPYTHON)
 
 %pythoncode %{
-YAPError = _yap.YAPError
+# YAPError = _yap.YAPError
 %}
 
   %typemap(typecheck) Term*  {