def update_source_list(self):
with cd('<STR_LIT>'):<EOL><INDENT>sudo('<STR_LIT>')<EOL>put(StringIO(bigdata_conf.ubuntu_source_list_16),<EOL>'<STR_LIT>', use_sudo=True)<EOL>sudo('<STR_LIT>')<EOL><DEDENT>
update ubuntu 16 source list
:return: