Return either the full or truncated version of a QIIME-formatted taxonomy string.

    :type p: str
    :param p: A QIIME-formatted taxonomy string: k__Foo; p__Bar; ...

    :type level: str
    :param level: The different level of identification are kingdom (k), phylum (p),
                  class (c),order (o), family (f), genus (g) and species (s). If level is
                  not provided, the default level of identification is species.

    :rtype: str
    :return: A QIIME-formatted taxonomy string up to the classification given
            by param level.

def split_phylogeny(p, level="s"):
    """
    Return either the full or truncated version of a QIIME-formatted taxonomy string.

    :type p: str
    :param p: A QIIME-formatted taxonomy string: k__Foo; p__Bar; ...

    :type level: str
    :param level: The different level of identification are kingdom (k), phylum (p),
                  class (c),order (o), family (f), genus (g) and species (s). If level is
                  not provided, the default level of identification is species.

    :rtype: str
    :return: A QIIME-formatted taxonomy string up to the classification given
            by param level.
    """
    level = level+"__"
    result = p.split(level)
    return result[0]+level+result[1].split(";")[0]