def _convert_from_european_format(string):
    """
    Conver the string given in the European format (commas as decimal points,
    full stops as the equivalent of commas), e.g. 1,200.5 would be written as
    1.200,5 in the European format.

    :param str string: A representation of the value as a string
    :returns: The string converted to standard format
    :rtype: str
    """
    string = string.replace(".", "")
    string = string.replace(",", ".")
    return string