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Tuple unpacking python 3 example12/17/2023 ![]() In the above syntax, the number of variables must be equal to the number of elements in the iterable_object. Hence, we have unpacked the list into six variables a, b, c, d, e, and f. In the above example, we have six elements in myList. After execution of the statement, all the variables are initialized with elements from iterable_object as shown below. ![]() In the above statement, variables var1, var2, var3, var4 till varN are individual variables. var1, var2, var3,var4.varN=iterable_object For this, you can use the following syntax. Instead of using the * operator, you can unpack an iterable object into multiple variables using parallel assignment. Unpacking in Python Using Parallel Assignment Hence, the program runs into Synta圎rror exception. In this example, we have tried to assign elements from myList to six variables using the * operator. Synta圎rror: can't use starred expression here You can observe this in the following example. If you do so, the program will run into an error. Remember that you cannot use the unpacking operator to assign the elements of the iterable object to individual elements. Then, we created a set from the unpacked elements. In the above example, the * operator unpacks myList. To understand this, consider the following example. Then, we can use the packing operation to create other iterable objects. After execution of the above statement, the elements of iterable_object are unpacked.The iterable_object variable represents an iterable object such as a list, tuple, set, or a Python dictionary.This way, you can selectively unpack specific elements from a tuple into the *args parameter of a function, allowing you to work with those elements individually within the function. The function my_function will receive these elements as separate arguments and print them. To do this, we use tuple slicing to select the elements we want to unpack, and then we pass them to the function using *. We want to unpack elements at indices 1 and 2 (i.e., “hello” and 3.14) into the *args parameter of my_function. In this example, we have a tuple my_tuple containing different types of elements. My_function(*my_tuple) Code language: Python ( python ) # Unpack specific elements from the tuple into *args Here’s how you can achieve this: def my_function (*args): for arg in args: If you have a tuple containing different elements, and you want to unpack some or all of those elements into the *args parameter of a function, you can do so by using tuple unpacking combined with *args. Python Unpack Different Elements In Tuple Into *args In this version, the function print_person_info expects three separate arguments, and the *person_data syntax is used to unpack the elements of the person_data tuple and pass them as individual arguments to the function.īoth of these approaches allow you to work with tuples as function arguments in Python, and you can choose the one that suits your needs and coding style best. Print_person_info(*person_data) Code language: Python ( python ) # Call the function with individual values as arguments Alternatively, you can use tuple unpacking within the function definition to directly unpack the values from the tuple:.In this example, the print_person_info function takes a single argument person_info, which is a tuple containing the name, age, and city of a person. # Call the function with a tuple as an argument ![]() Define a function that takes a tuple as an argument:.Here’s how you can use tuples as function arguments: This can be useful when you want to group related data together. You can use tuples as function arguments to pass multiple values to a function as a single argument. You can use this technique to easily pass the elements of a tuple as arguments to any function that expects a specific number of arguments. So, the function call is equivalent to example_function(1, 2, 3). In this example, the *my_tuple syntax is used to unpack the elements of my_tuple and pass them as separate arguments to example_function. # Unpack the tuple into function arguments using * You can unpack the tuple into arguments like this: def example_function (arg1, arg2, arg3): Suppose you have a function that takes multiple arguments, and you have a tuple that contains values you want to pass as arguments to that function. ![]() This is known as “tuple unpacking” or “argument unpacking.” Here’s how you can do it: You can unpack a tuple into individual arguments when calling a function using the * operator. ![]()
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