add method getNReaders

Author: jurgen-lentz

src/pyscipopt/scip.pxd

@@ -857,6 +857,7 @@ cdef extern from "scip/scip.h":
                                    SCIP_READERDATA* readerdata)
     SCIP_READER* SCIPfindReader(SCIP* scip, const char* name)
     SCIP_READERDATA* SCIPreaderGetData(SCIP_READER* reader)
+    int SCIPgetNReaders(SCIP* scip)
 
     # Event handler plugin
     SCIP_RETCODE SCIPincludeEventhdlr(SCIP* scip,

src/pyscipopt/scip.pyx

@@ -4573,6 +4573,9 @@ cdef class Model:
         """Counts the number of feasible points of problem."""
         PY_SCIP_CALL(SCIPcount(self._scip))
 
+    def getNReaders(self):
+        return SCIPgetNReaders(self._scip)
+
     def getNCountedSols(self):
         """Get number of feasible solution."""
         cdef SCIP_Bool valid