[boost] [serialize] xml archives and base 64 encoded binary data

Hi, I'm writing some binary data to an xml_oarchive (a vector of floats). I'm then giving the xml files to some python uses we have here so they can read them in. They had trouble with the base64 encoding of the binary data. One has mentioned that base64 spec says an '=' must be appended to the data to indicate the padding up to the next 4-byte multiple. When they added an '=' to the data between the tags in the resultant xml file, they could decode it successfully. If it is in the spec (am trying to find a link to check this), can the the base64 encoding in serialize be modified to do this before the 1.32.0 release, so it conforms to the standard? Thanks Russell