src/sage/rings/finite_rings/element_ntl_gf2e.pyx: Fix test for libgap element

Author: Matthias Koeppe

src/sage/rings/finite_rings/element_ntl_gf2e.pyx

@@ -334,16 +334,17 @@ cdef class Cache_ntl_gf2e(Cache_base):
             e = e.__pari__()
 
         elif isinstance(e, GapElement):
-            from sage.libs.gap.element import GapElement_FiniteField
-
-            if isinstance(e, GapElement_FiniteField):
-                return e.sage(ring=self._parent)
-
             from sage.libs.gap.libgap import libgap
-
             return libgap(e).sage(ring=self._parent)
 
         else:
+            try:
+                from sage.libs.gap.element import GapElement_FiniteField
+            except ImportError:
+                pass
+            else:
+                if isinstance(e, GapElement_FiniteField):
+                    return e.sage(ring=self._parent)
             raise TypeError("unable to coerce %r" % type(e))
 
         cdef GEN t