patch 7.4.1129

Problem:    Python None value can't be converted to a Vim value.
Solution:   Just use zero. (Damien)

src/if_py_both.h

@@ -5521,7 +5521,7 @@ run_eval(const char *cmd, typval_T *rettv
     }
     else
     {
-	if (ConvertFromPyObject(run_ret, rettv) == -1)
+	if (run_ret != Py_None && ConvertFromPyObject(run_ret, rettv) == -1)
 	    EMSG(_("E859: Failed to convert returned python object to vim value"));
 	Py_DECREF(run_ret);
     }

src/testdir/test86.in

@@ -329,6 +329,8 @@ EOF
 :$put =string(l)
 :let d=pyeval('{"a": "b", "c": 1, "d": ["e"]}')
 :$put =sort(items(d))
+:let v:errmsg = ''
+:$put ='pyeval(\"None\") = ' . pyeval('None') . v:errmsg
 :if has('float')
 :   let f=pyeval('0.0')
 :   $put =string(f)

src/testdir/test86.ok

@@ -86,6 +86,7 @@ ll:[1]
 ['a', 'b']
 ['c', 1]
 ['d', ['e']]
+pyeval("None") = 0
 0.0
 "\0":	Vim(let):E859:
 {"\0": 1}:	Vim(let):E859:

src/testdir/test87.in

@@ -326,6 +326,8 @@ EOF
 :$put =string(l)
 :let d=py3eval('{"a": "b", "c": 1, "d": ["e"]}')
 :$put =sort(items(d))
+:let v:errmsg = ''
+:$put ='py3eval(\"None\") = ' . py3eval('None') . v:errmsg
 :if has('float')
 :   let f=py3eval('0.0')
 :   $put =string(f)

src/testdir/test87.ok

@@ -86,6 +86,7 @@ ll:[1]
 ['a', 'b']
 ['c', 1]
 ['d', ['e']]
+py3eval("None") = 0
 0.0
 "\0":	Vim(let):E859:
 {"\0": 1}:	Vim(let):E859:

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1129,
 /**/
     1128,
 /**/