@classmethod<EOL><INDENT>def _parse_band(cls, kw):<DEDENT>
m = re.search('<STR_LIT>', kw)<EOL>if m:<EOL><INDENT>if m.group(<NUM_LIT:1>) in cls._not_a_band:<EOL><INDENT>return None<EOL><DEDENT>else:<EOL><INDENT>return m.group(<NUM_LIT:1>)<EOL><DEDENT><DEDENT>
Returns photometric band from inifile keyword