@staticmethod<EOL><INDENT>def _alpha2_to_country(alpha2):<DEDENT>
if alpha2 is None:<EOL><INDENT>return '<STR_LIT>'<EOL><DEDENT>try:<EOL><INDENT>return countries.get(alpha2).name<EOL><DEDENT>except KeyError:<EOL><INDENT>return alpha2<EOL><DEDENT>
Try to look up an alpha2 country code from the iso3166 package; return
the returned name if available, otherwise the original value. Returns
"unknown" (str) for None.

:param alpha2: alpha2 country code
:type alpha2: str
:return: country name, or original value if not found
:rtype: str