Use Py3 syntax in generated Cython code fragment.

Cython/Utility/TestCythonScope.pyx

 ########## TestClass ##########
 # These utilities are for testing purposes
 
+from __future__ import print_function
+
 cdef extern from *:
     cdef object __pyx_test_dep(object)
 
@@ -15,29 +17,29 @@ cdef class TestClass(object):
         return 'TestClass(%d)' % self.value
 
     cdef cdef_method(self, int value):
-        print 'Hello from cdef_method', value
+        print('Hello from cdef_method', value)
 
     cpdef cpdef_method(self, int value):
-        print 'Hello from cpdef_method', value
+        print('Hello from cpdef_method', value)
 
     def def_method(self, int value):
-        print 'Hello from def_method', value
+        print('Hello from def_method', value)
 
     @cname('cdef_cname')
     cdef cdef_cname_method(self, int value):
-        print "Hello from cdef_cname_method", value
+        print("Hello from cdef_cname_method", value)
 
     @cname('cpdef_cname')
     cpdef cpdef_cname_method(self, int value):
-        print "Hello from cpdef_cname_method", value
+        print("Hello from cpdef_cname_method", value)
 
     @cname('def_cname')
     def def_cname_method(self, int value):
-        print "Hello from def_cname_method", value
+        print("Hello from def_cname_method", value)
 
 @cname('__pyx_test_call_other_cy_util')
 cdef test_call(obj):
-    print 'test_call'
+    print('test_call')
     __pyx_test_dep(obj)
 
 @cname('__pyx_TestClass_New')
@@ -46,19 +48,20 @@ cdef _testclass_new(int value):
 
 ########### TestDep ##########
 
+from __future__ import print_function
+
 @cname('__pyx_test_dep')
 cdef test_dep(obj):
-    print 'test_dep', obj
+    print('test_dep', obj)
 
 ########## TestScope ##########
 
 @cname('__pyx_testscope')
 cdef object _testscope(int value):
-    return "hello from cython scope, value=%d" % value
+    return f"hello from cython scope, value={value}"
 
 ########## View.TestScope ##########
 
 @cname('__pyx_view_testscope')
 cdef object _testscope(int value):
-    return "hello from cython.view scope, value=%d" % value
-
+    return f"hello from cython.view scope, value={value}"