Make print_debug_info() method available only in debug build

Author: 1st1

uvloop/loop.pxd

@@ -196,6 +196,8 @@ cdef class Loop:
 
     cdef _set_coroutine_wrapper(self, bint enabled)
 
+    cdef _print_debug_info(self)
+
 
 include "cbhandles.pxd"
 

uvloop/loop.pyx

@@ -1024,14 +1024,11 @@ cdef class Loop:
         """This method is used by uvloop tests and is not part of the API."""
         return uv.uv_backend_fd(self.uvloop)
 
-    def print_debug_info(self):
+    cdef _print_debug_info(self):
         cdef:
             int err
             uv.uv_rusage_t rusage
 
-        if not UVLOOP_DEBUG:
-            raise NotImplementedError
-
         err = uv.uv_getrusage(&rusage)
         if err < 0:
             raise convert_error(err)
@@ -1121,6 +1118,13 @@ cdef class Loop:
 
         print(flush=True)
 
+    property print_debug_info:
+        def __get__(self):
+            if UVLOOP_DEBUG:
+                return lambda: self._print_debug_info()
+            else:
+                raise AttributeError('print_debug_info')
+
     # Public API
 
     def __repr__(self):