Python: Insert an element at the beginning of a given OrderedDictionary
Python Collections: Exercise-22 with Solution
Write a Python program to insert an element at the beginning of a given OrderedDictionary.
Sample Solution:
Python Code:
from collections import OrderedDict
color_orderdict = OrderedDict([('color1', 'Red'), ('color2', 'Green'), ('color3', 'Blue')])
print("Original OrderedDict:")
print(color_orderdict)
print("Insert an element at the beginning of the said OrderedDict:")
color_orderdict.update({'color4':'Orange'})
color_orderdict.move_to_end('color4', last = False)
print("\nUpdated OrderedDict:")
print(color_orderdict)
Sample Output:
Original OrderedDict: OrderedDict([('color1', 'Red'), ('color2', 'Green'), ('color3', 'Blue')]) Insert an element at the beginning of the said OrderedDict: Updated OrderedDict: OrderedDict([('color4', 'Orange'), ('color1', 'Red'), ('color2', 'Green'), ('color3', 'Blue')])
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Python: Tips of the Day
Use Reversed() In for Loops:
>>> tasks = ['laundry', 'picking up kids', 'gardening', 'cooking'] >>> for task in reversed(tasks): ... print(task) ... cooking gardening picking up kids laundry
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