comparer.py

def compare(correctList, newList, scope):
    """
    A method to compare two list which are not necessarily the same but should be regarded as the same. 
    The 2 input lists are supposed to have the same items and the same length, also no duplicates are allowed.
    Parameters
    ----------
    correctList: the list where the new list is compared to
    newList: the list which is compared to the correct list
    scope: the number of places before and behind an item

    Returns
    -------
    A double which represent the percentage of comparison.
    """
    correct = 0
    if len(correctList) != len(newList):
        raise ValueError("List must be of equal size")
    else:
        for item in newList:
            low = correctList.index(item) - scope
            high = correctList.index(item) + scope

            if low < 0:
                low = 0
            if high > len(correctList) - 1:
                high = len(correctList) - 1

            if low <= newList.index(item) <= high:
                correct += 1

        return float(correct) / len(correctList)