www/src/py_string.js
function(val, upper, flags) {
    val = _float_helper(val, flags)
    return format_padding(format_sign(val, flags) +
        format_float_precision(val, upper, flags,
            function(val, precision, flags) {
                val = val.toFixed(precision)
                if(precision === 0 && flags.alternate){
                    val += '.'
                }
                return val
            }),
        flags
    )
}
function(val, upper, flags) {
    val = _float_helper(val, flags)
    return format_padding(format_sign(val, flags) +
        format_float_precision(val, upper, flags,
            function(val, precision, flags) {
                val = val.toFixed(precision)
                if(precision === 0 && flags.alternate){
                    val += '.'
                }
                return val
            }),
        flags
    )
}
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