Some new features in python 3 11
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python 3.11 introduced several new features and improvements that enhance the language's usability, performance, and error handling. here’s an informative tutorial on some of the notable features of python 3.11, along with code examples.
1. performance improvements
one of the most significant changes in python 3.11 is the performance enhancement. python 3.11 is approximately *10-60% faster* than python 3.10. this improvement is due to optimizations in the cpython interpreter.
*example:*
2. exception groups and `except*`
python 3.11 introduced exception groups and a new syntax for handling them. this allows you to raise and handle multiple exceptions simultaneously.
*example:*
3. type parameter syntax
python 3.11 adds a more concise syntax for declaring type parameters in generic types. you can now use `typevartuple` to create variadic generics.
*example:*
4. `self` type
the `self` type annotation provides a way to indicate that a method returns an instance of its own class, improving type hinting for class methods.
*example:*
5. more informative error messages
python 3.11 enhances error messages to make them clearer and more informative. for example, it provides detailed context for syntax errors and exceptions.
*example:*
6. new syntax features
python 3.11 introduces new syntax features, including the ability to use `match` statements with `case` blocks that function more like pattern matching.
*example:*
7. f-string improvements
f-strings have been enhanced to allow for self-documenting expressions. you can use the `=` operator to show both the expression and its value.
*example:*
conclusion
python 3.11 brings a range of exciting features designed to improve both performance and usability. the introduction of exception groups, enhanced type hinting, and more informative error messages are just a few highlights. be sure to explore these new features in your projects to take full advantage ...
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