core.ppyx: use integer_types

gevent/core.ppyx

@@ -17,6 +17,13 @@ __all__ = ['get_version',
            'time',
            'loop']
 
+cdef tuple integer_types
+
+if sys.version_info[0] >= 3:
+    integer_types = int,
+else:
+    integer_types = (int, long)
+
 
 cdef extern from "callbacks.h":
     void gevent_callback_io(libev.ev_loop, void*, int)
@@ -151,7 +158,7 @@ cpdef unsigned int _flags_to_int(object flags) except? -1:
     # Note, that order does not matter, libev has its own predefined order
     if not flags:
         return 0
-    if isinstance(flags, (int, long)):
+    if isinstance(flags, integer_types):
         return flags
     cdef unsigned int result = 0
     try:
@@ -167,7 +174,7 @@ cpdef unsigned int _flags_to_int(object flags) except? -1:
 
 
 cdef str _str_hex(object flag):
-    if isinstance(flag, (int, long)):
+    if isinstance(flag, integer_types):
         return hex(flag)
     return str(flag)