code: def parse_attrlist(str_, avs_sep=":", vs_sep=",", as_sep=";"):
      
      return dict(parse_attrlist_0(str_, avs_sep, vs_sep, as_sep))
docs: Simple parser to parse expressions in the form of
      [ATTR1:VAL0,VAL1,...;ATTR2:VAL0,VAL2,..].
  
      :param str_: input string
      :param avs_sep:  char to separate attribute and values
      :param vs_sep:  char to separate values
      :param as_sep:  char to separate attributes
  
      >>> parse_attrlist("requires:bash,zsh")
      {'requires': ['bash', 'zsh']}