slightly nicer print: simplices are now surrounded with <v1,v2,...>

flag_complex.py

@@ -14,7 +14,7 @@ Simplex.__doc__ += \
     cofaces(V): A set of references to the cofaces of the simplex, in itself FlagComplexVertices.
     '''
 Simplex.__hash__ = object.__hash__
-Simplex.__repr__ = lambda self : self.ver.__repr__()
+Simplex.__repr__ = lambda self : f'<{self.ver.__repr__()}>'
 
 def pred(G,v):
     '''