Merge remote-tracking branch 'origin/master'

doc/stages/filters.python.rst

@@ -44,8 +44,19 @@ filter and the ``outs`` array represents the points after filtering.
 
 
 
-2) If you want to write a dimension that might not be available, use can use one
-   or more ``add_dimension`` options.
+2) If you want write a dimension that might not be available, you can specify
+   it with the ``add_dimension`` option. 
+
+    .. code-block:: json
+
+        "add_dimension": "NewDimensionOne"
+
+   To create more than one dimension, this option also accepts an array.
+
+    .. code-block:: json
+
+        "add_dimension": [ "NewDimensionOne", "NewDimensionTwo", "NewDimensionThree" ]
+
 
 .. note::
 
@@ -265,7 +276,7 @@ source
   The literal `Python`_ code to execute, when the script option is not being used.
 
 add_dimension
-  The name of a dimension to add to the pipeline that does not already exist.
+  A dimension name or an array of dimension names to add to the pipeline that do not already exist.
 
 pdalargs
   A JSON dictionary of items you wish to pass into the modules globals as the

plugins/python/plang/Environment.cpp

@@ -190,9 +190,9 @@ std::string getTraceback()
                 throw pdal::pdal_error("unable to get repr in getTraceback");
 #if PY_MAJOR_VERSION >= 3
             Py_ssize_t size;
-            char *d = PyUnicode_AsUTF8AndSize(r, &size);
+            const char *d = PyUnicode_AsUTF8AndSize(r, &size);
 #else
-            char *d = PyString_AsString(r);
+            const char *d = PyString_AsString(r);
 #endif
             mssg << d;
         }
@@ -208,9 +208,9 @@ std::string getTraceback()
             throw pdal::pdal_error("couldn't make string representation of traceback value");
 #if PY_MAJOR_VERSION >= 3
         Py_ssize_t size;
-        char *d = PyUnicode_AsUTF8AndSize(r, &size);
+        const char *d = PyUnicode_AsUTF8AndSize(r, &size);
 #else
-        char *d = PyString_AsString(r);
+        const char *d = PyString_AsString(r);
 #endif
         mssg << d;
     }
@@ -266,9 +266,9 @@ std::string readPythonString(PyObject* dict, const std::string& key)
         throw pdal::pdal_error("unable to get repr in readPythonString");
 #if PY_MAJOR_VERSION >= 3
     Py_ssize_t size;
-    char *d = PyUnicode_AsUTF8AndSize(r, &size);
+    const char *d = PyUnicode_AsUTF8AndSize(r, &size);
 #else
-    char *d = PyString_AsString(r);
+    const char *d = PyString_AsString(r);
 #endif
     ss << d;