python: add binding for is_unambiguous

Fixes #117.

* wrap/python/spot.py, wrap/python/spot_impl.i: Add binding.
* wrap/python/tests/remfin.py: Add a small test case.
* NEWS: Mention it.

NEWS

@@ -22,6 +22,9 @@ New in spot 1.99.5a (not yet released)
     Boolean argument.  This argument used to be optionnal (defaulting
     to True), but it no longer is.
 
+  Python:
+  * Add bindings for is_unambiguous().
+
   Bug fixes:
   * automaton parser was ignoring the "unambiguous" property.
 

wrap/python/spot.py

@@ -626,10 +626,14 @@ twa.postprocess = postprocess
 # instance methods (i.e., self passed as first argument
 # automatically), because only used-defined functions are converted as
 # instance methods.
-for meth in ('scc_filter', 'scc_filter_states'):
+def _add_twa_graph(meth):
     setattr(twa_graph, meth, (lambda self, *args, **kwargs:
                               globals()[meth](self, *args, **kwargs)))
 
+for meth in ('scc_filter', 'scc_filter_states',
+             'is_deterministic', 'is_unambiguous'):
+    _add_twa_graph(meth)
+
 # Wrapper around a formula iterator to which we add some methods of formula
 # (using _addfilter and _addmap), so that we can write things like
 # formulas.simplify().is_X_free().

wrap/python/spot_impl.i

@@ -128,6 +128,7 @@
 #include "twaalgos/sccfilter.hh"
 #include "twaalgos/stats.hh"
 #include "twaalgos/isdet.hh"
+#include "twaalgos/isunamb.hh"
 #include "twaalgos/simulation.hh"
 #include "twaalgos/postproc.hh"
 #include "twaalgos/product.hh"
@@ -307,6 +308,7 @@ namespace std {
 %include "twaalgos/sccfilter.hh"
 %include "twaalgos/stats.hh"
 %include "twaalgos/isdet.hh"
+%include "twaalgos/isunamb.hh"
 %include "twaalgos/simulation.hh"
 %include "twaalgos/postproc.hh"
 %include "twaalgos/product.hh"

wrap/python/tests/remfin.py

@@ -41,3 +41,9 @@ assert(aut1.get_name() == None)
 aut1.set_name("test me")
 assert(aut1.get_name() == "test me")
 # The method is the same as the function
+
+a = spot.translate('true', 'low', 'any')
+assert(a.prop_deterministic() == False)
+assert(a.prop_unambiguous() == False)
+assert(a.is_deterministic() == True)
+assert(a.is_unambiguous() == True)