make class final

sagemath · Dec 21, 2019 · 7d70aaf · 7d70aaf
1 parent 47a3897
commit 7d70aaf
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/sage/graphs/base/sparse_graph.pxd b/src/sage/graphs/base/sparse_graph.pxd
@@ -9,6 +9,7 @@
 #*****************************************************************************
 
 from .c_graph cimport CGraph, CGraphBackend
+cimport cython
 
 cdef struct SparseGraphLLNode:
     int label
@@ -22,6 +23,7 @@ cdef struct SparseGraphBTNode:
     SparseGraphBTNode *left
     SparseGraphBTNode *right
 
+@cython.final
 cdef class SparseGraph(CGraph):
     cdef int hash_length
     cdef int hash_mask