New features added in Python 3.9.0.0 version

Problem:Explain the key features and enhancements introduced in Python 3.9.0. Provide examples to illustrate the usage of these features.

Solution:Python 3.9.0 introduced several new features and improvements to the language. Here are some of the noteworthy changes:

Assignment Expressions (The Walrus Operator :=):

Python 3.9 introduced the : = operator, known as the walrus operator, which allows you to assign a value to a variable as part of an expression. This can lead to more concise and readable code.

# Without the walrus operator
if len(some_list) > 0 :
    print(some_list [0] )

# With the walrus operator
if (n : = len(some_list) ) > 0 : 
    print (some_list [n - l] )

Assignment Expressions (The Walrus Operator :=):

Python 3.9 introduced the : = operator, known as the walrus operator, which allows you to assign a value to a variable as part of an expression. This can lead to more concise and readable code.

Type Hinting Improvements:

Python 3.9 brought enhancements to type hinting, making it more powerful and expressive. Developers can now provide better type hints for functions and variables.

New Syntax Features:

New syntax features include the " union" operator | for dictionaries and the |= operator for dictionary updates.

New features added in Python 3.9.0.0 version