Updates

Updates in v3.1

Discover the latest features, performance improvements, and syntax changes introduced in Python 3.1.

Updates

Python 3.12 introduces several exciting improvements to performance, syntax, and error handling.

1. More Informative Error Messages

Tracebacks now show variable values in exceptions:

pythonCopyEditx = 0
y = 1 / x  # Traceback now includes: x = 0

This helps identify bugs faster.

2. Performance Improvements

Python 3.12 includes under-the-hood speedups via:

Zero-cost exceptions
Bytecode optimizations
Reduced memory usage

Real-world code runs 5–10% faster on average.

3. New except* Syntax for Concurrent Exceptions

Improved support for handling multiple exceptions in async or threaded code:

pythonCopyEdittry:
    ...
except* ValueError as e:
    ...

4. Deprecations and Removals

The deprecated distutils module has been removed.
Some outdated standard library modules and syntax quirks are now gone.

5. Other Improvements

Unicode support updated to version 15.0
Improvements to f-string error messages
Safer and stricter syntax parsing

Updates

Python 3.12 introduces several exciting improvements to performance, syntax, and error handling.

1. More Informative Error Messages

Tracebacks now show variable values in exceptions:

pythonCopyEditx = 0
y = 1 / x  # Traceback now includes: x = 0

This helps identify bugs faster.

2. Performance Improvements

Python 3.12 includes under-the-hood speedups via:

Zero-cost exceptions
Bytecode optimizations
Reduced memory usage

Real-world code runs 5–10% faster on average.

3. New except* Syntax for Concurrent Exceptions

Improved support for handling multiple exceptions in async or threaded code:

pythonCopyEdittry:
    ...
except* ValueError as e:
    ...

4. Deprecations and Removals

The deprecated distutils module has been removed.
Some outdated standard library modules and syntax quirks are now gone.

5. Other Improvements

Unicode support updated to version 15.0
Improvements to f-string error messages
Safer and stricter syntax parsing

Updates

Python 3.12 introduces several exciting improvements to performance, syntax, and error handling.

1. More Informative Error Messages

Tracebacks now show variable values in exceptions:

pythonCopyEditx = 0
y = 1 / x  # Traceback now includes: x = 0

This helps identify bugs faster.

2. Performance Improvements

Python 3.12 includes under-the-hood speedups via:

Zero-cost exceptions
Bytecode optimizations
Reduced memory usage

Real-world code runs 5–10% faster on average.

3. New except* Syntax for Concurrent Exceptions

Improved support for handling multiple exceptions in async or threaded code:

pythonCopyEdittry:
    ...
except* ValueError as e:
    ...

4. Deprecations and Removals

The deprecated distutils module has been removed.
Some outdated standard library modules and syntax quirks are now gone.

5. Other Improvements

Unicode support updated to version 15.0
Improvements to f-string error messages
Safer and stricter syntax parsing

‹ Strings

Exception Handling ›