Mujeeb urpxt

# Insert dictionary item into a dictionary at specified position: 

def insert_item(dic, item={}, pos=None):

    """

    Insert a key, value pair into an ordered dictionary.

    Insert before the specified position.

    """

    from collections import OrderedDict

    d = OrderedDict()

    # abort early if not a dictionary:

    if not item or not isinstance(item, dict):

        print('Aborting. Argument item must be a dictionary.')

        return dic

    # insert anywhere if argument pos not given: 

    if not pos:

        dic.update(item)

        return dic

    for item_k, item_v in item.items():

        for k, v in dic.items():

            # insert key at stated position:

            if k == pos:

                d[item_k] = item_v

            d[k] = v

    return d

​

d = {'A':'letter A', 'C': 'letter C'}

insert_item(['A', 'C'], item={'B'})

## Aborting. Argument item must be a dictionary.

​

insert_item(d, item={'B': 'letter B'})

## {'A': 'letter A', 'C': 'letter C', 'B': 'letter B'}

​

insert_item(d, pos='C', item={'B': 'letter B'})

# OrderedDict([('A', 'letter A'), ('B', 'letter B'), ('C', 'letter C')])