[Python] Support select_species in SolutionArray

interfaces/cython/cantera/solutionbase.pxd

@@ -78,7 +78,7 @@ cdef extern from "cantera/base/SolutionArray.h" namespace "Cantera":
         vector[long int] apiShape() except +translate_exception
         void setApiShape(vector[long int]&) except +translate_exception
         size_t apiNdim()
-        string info(int, int) except +translate_exception
+        string info(vector[string]&, int, int) except +translate_exception
         CxxAnyMap meta()
         void setMeta(CxxAnyMap&)
         vector[string] componentNames() except +translate_exception

interfaces/cython/cantera/solutionbase.pyx

@@ -3,8 +3,6 @@
 
 cimport numpy as np
 import numpy as np
-from collections import defaultdict as _defaultdict
-from cython.operator cimport dereference as deref, preincrement as inc
 from pathlib import PurePath
 import warnings
 
@@ -540,14 +538,29 @@ cdef class SolutionArrayBase:
             cxx_shape.push_back(dim)
         self.base.setApiShape(cxx_shape)
 
-    def info(self, rows=10, width=80):
+    def info(self, keys=None, rows=10, width=80):
         """
         Print a concise summary of a `SolutionArray`.
 
+        :param keys: List of components to be displayed; if `None`, all components are
+            considered.
         :param rows: Maximum number of rendered rows.
         :param width: Maximum width of rendered output.
         """
-        return pystr(self.base.info(rows, width))
+        cdef vector[string] cxx_keys
+        if keys is not None:
+            for key in keys:
+                cxx_keys.push_back(stringify(key))
+        elif self._phase.selected_species:
+            keep = self._phase.species_names
+            self._phase.selected_species = []
+            names = set(self._phase.species_names)
+            self._phase.selected_species = keep
+            keep = set(keep)
+            for key in self.component_names:
+                if key not in names or key in keep:
+                    cxx_keys.push_back(stringify(key))
+        return pystr(self.base.info(cxx_keys, rows, width))
 
     @property
     def meta(self):

src/base/SolutionArray.cpp

@@ -505,11 +505,8 @@ string SolutionArray::info(const vector<string>& keys, int rows, int width)
             // add separator
             cols.push_back(vector<string>(size + 1, "  ..."));
         }
-        while (tail.size()) {
-            // copy trailing columns
-            cols.push_back(tail.back());
-            tail.pop_back();
-        }
+        // copy trailing columns
+        cols.insert(cols.end(), tail.rbegin(), tail.rend());
 
         // assemble formatted output
         for (size_t row = 0; row < size; row++) {