Python allows commas at the end of lists and tuples. It is optional, makes the project more readable, and you can reorder the projects without any errors. If you add a comma at the end, you don't have to remember again and again to add a trailing comma after each item.
Let’s look at some examples -
In this example we will add a trailing comma to the list so that we don’t get any errors -
# Creating a List
myList = ["Jacob", "Harry", "Mark", "Anthony", ]
# Displaying the List
print("List = ",myList)
('List = ', ['Jacob', 'Harry', 'Mark', 'Anthony'])
In this example we will add a trailing comma in the tuple without any errors −< /跨度>
# Creating a Tuple
myTuple = ("Tesla", "Audi", "Toyota",)
# Displaying the Tuple
print("Tuple = ",myTuple)
('Tuple = ', ('Tesla', 'Audi', 'Toyota'))
You can also add a trailing comma to the dictionary −
# Creating a Dictionary with 4 key-value pairs
myprod = {
"Product":"Mobile",
"Model": "XUT",
"Units": 120,
"Available": "Yes",
}
# Displaying the Dictionary
print(myprod)
# Displaying individual values
print("Product = ",myprod["Product"])
print("Model = ",myprod["Model"])
print("Units = ",myprod["Units"])
print("Available = ",myprod["Available"])
{'Units': 120, 'Available': 'Yes', 'Product': 'Mobile', 'Model': 'XUT'}
('Product = ', 'Mobile')
('Model = ', 'XUT')
('Units = ', 120)
('Available = ', 'Yes')
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