def rc_params(fail_on_error=False):
    'Return the default params updated from the values in the rc file'

    fname = matplotlib_fname()
    if not os.path.exists(fname):
        # this should never happen, default in mpl-data should always be found
        message = 'could not find rc file; returning defaults'
        ret = RcParams([ (key, default) for key, (default, converter) in \
                        defaultParams.iteritems() ])
        warnings.warn(message)
        return ret

    cnt = 0
    rc_temp = {}
    for line in file(fname):
        cnt += 1
        strippedline = line.split('#',1)[0].strip()
        if not strippedline: continue
        tup = strippedline.split(':',1)
        if len(tup) !=2:
            warnings.warn('Illegal line #{0:d}\n\t{1!s}\n\tin file "{2!s}"'.format(cnt, line, fname))
            continue
        key, val = tup
        key = key.strip()
        val = val.strip()
        if key in rc_temp:
            warnings.warn('Duplicate key in file "{0!s}", line #{1:d}'.format(fname, cnt))
        rc_temp[key] = (val, line, cnt)

    ret = RcParams([ (key, default) for key, (default, converter) in \
                    defaultParams.iteritems() ])

    for key in ('verbose.level', 'verbose.fileo'):
        if key in rc_temp:
            val, line, cnt = rc_temp.pop(key)
            if fail_on_error:
                ret[key] = val # try to convert to proper type or raise
            else:
                try: ret[key] = val # try to convert to proper type or skip
                except Exception, msg:
                    warnings.warn('Bad val "{0!s}" on line #{1:d}\n\t"{2!s}"\n\tin file \
"{3!s}"\n\t{4!s}'.format(val, cnt, line, fname, msg))

def rc_params(fail_on_error=False):
    'Return the default params updated from the values in the rc file'

    fname = get_config_file()
    if not os.path.exists(fname):
        message = 'could not find rc file; returning defaults'
        ret =  dict([ (key, tup[0]) for key, tup in defaultParams.items()])
        warnings.warn(message)
        return ret

    cnt = 0
    rc_temp = {}
    for line in file(fname):
        cnt += 1
        strippedline = line.split('#',1)[0].strip()
        if not strippedline: continue
        tup = strippedline.split(':',1)
        if len(tup) !=2:
            warnings.warn('Illegal line #%d\n\t%s\n\tin file "%s"'%\
                          (cnt, line, fname))
            continue
        key, val = tup
        key = key.strip()
        val = val.strip()
        if key in rc_temp:
            warnings.warn('Duplicate key in file "%s", line #%d'%(fname,cnt))
        rc_temp[key] = (val, line, cnt)

    ret = RcParams([ (key, default) for key, (default, converter) in \
                    defaultParams.iteritems() ])

    for key in ('verbose.level', 'verbose.fileo'):
        if key in rc_temp:
            val, line, cnt = rc_temp.pop(key)
            if fail_on_error:
                ret[key] = val # try to convert to proper type or raise
            else:
                try: ret[key] = val # try to convert to proper type or skip
                except Exception, msg:
                    warnings.warn('Bad val "%s" on line #%d\n\t"%s"\n\tin file \
"%s"\n\t%s' % (val, cnt, line, fname, msg))