+
+try:
+ struct.pack('!I', 0)
+except TypeError:
+ # In Python 2.6 and 2.7.x < 2.7.7, struct requires a bytes argument
+ # See https://bugs.python.org/issue19099
+ def struct_pack(spec, *args):
+ if isinstance(spec, compat_str):
+ spec = spec.encode('ascii')
+ return struct.pack(spec, *args)
+
+ def struct_unpack(spec, *args):
+ if isinstance(spec, compat_str):
+ spec = spec.encode('ascii')
+ return struct.unpack(spec, *args)
+else:
+ struct_pack = struct.pack
+ struct_unpack = struct.unpack
+
+