Asterisk unpacking cheatsheet in Python

asterisk_unpacking.py

#Unpack tuples
>>> fruits = ['lemon', 'pear', 'watermelon', 'tomato']
>>> first, second, *remaining = fruits
>>> remaining
['watermelon', 'tomato']
>>> first, *remaining = fruits
>>> remaining
['pear', 'watermelon', 'tomato']
>>> first, *middle, last = fruits
>>> middle
['pear', 'watermelon']

#Unpack list literals 
def palindromify(sequence):
    return [*sequence, *reversed(sequence)]
	
def rotate_first_item(sequence):
    return [*sequence[1:], sequence[0]]

#Unpack dictionaries   
>>> date_info = {'year': "2020", 'month': "01", 'day': "01"}
>>> track_info = {'artist': "Beethoven", 'title': 'Symphony No 5'}
>>> all_info = {**date_info, **track_info}
>>> all_info
{'year': '2020', 'month': '01', 'day': '01', 'artist': 'Beethoven', 'title': 'Symphony No 5'}