filters.py 文件源码

def log(value, base):
    """
    This function returns the logarithm of 'value' to the given base 'base'
    """
    if value is None:
      raise errors.AnsibleFilterError('value is not provided')

    if base is None:
      raise errors.AnsibleFilterError('base is not provided')

    if not isinstance(value, int):
      raise errors.AnsibleFilterError('Wrong type for value')

    if not isinstance(base, int):
      raise errors.AnsibleFilterError('Wrong type for base')

    return math.log(value, base)