'Get the current measured compression ratios (in,out) from
this transport.
Returns a tuple of:
(inbound_compression_ratio, outbound_compression_ratio)
The compression ratios are computed as:
compressed / uncompressed
E.g., data that compresses by 10x will have a ratio of: 0.10
and data that compresses to half of ts original size will
have a ratio of 0.5
None is returned if no bytes have yet been processed in
a particular direction.'

def getCompRatio(self):

    (r_percent, w_percent) = (None, None)
    if (self.bytes_in > 0):
        r_percent = (self.bytes_in_comp / self.bytes_in)
    if (self.bytes_out > 0):
        w_percent = (self.bytes_out_comp / self.bytes_out)
    return (r_percent, w_percent)
