class I2C(Lockable):
     def __init__(self, scl, sda, frequency=400000):
-        super().__init()
         self.init(scl, sda, frequency)
 
     def init(self, scl, sda, frequency):
     def readinto(self, buf):
         return self.readinto(buf)
 
-    def write_readinto(self, buffer_out, buffer_in)
+    def write_readinto(self, buffer_out, buffer_in):
         return self.write_readinto(buffer_out, buffer_in)