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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def isiterable(obj, reject_string=True):
 """convenience tool to detect if something is iterable. in python3, strings count as iterables to we have the option to exclude them Parameters: obj : object to analyse reject_string : bool, whether to ignore strings Returns: -------- bool, if the object is itereable. """


    iterable =  hasattr(obj, '__len__')

    if reject_string:
        iterable = iterable and not isinstance(obj, str)

    return iterable