def format_number(self, value=None):
    '\n        Return a float in a standardized, human-readable formatted string\n        '
    try:
        value = float(value)
    except:
        output = None
        return output
    output = ('%-7.4g' % value)
    return output.lstrip().rstrip()
Return a float in a standardized, human-readable formatted string
def format_number(self, value=None):
    '\n        \n        '
    try:
        value = float(value)
    except:
        output = None
        return output
    output = ('%-7.4g' % value)
    return output.lstrip().rstrip()