The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),

and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

:information_source: Note that python-minifier depends on the python interpreter for parsing source code,

and will output source code compatible with the version of the interpreter it is run with.

This means that if you minify code written for Python 3.11 using python-minifier running with Python 3.12,

the minified code may only run with Python 3.12.

- A new transform to remove `return` statements that are not required, which is enabled by default.

- Python 3.12 support, including:

- PEP 695 Type parameter syntax

- PEP 701 Improved f-strings

- A new transform to remove the brackets when instantiating and raising built-in exceptions, which is enabled by default.

e.g.

```python

def important(a):

if a > 3:

return a

if a < 2:

return None

a.adjust(1)

return None

def a():

raise ValueError()

Will be minified to:

def important(a):

if a > 3:

return a

if a < 2:

return

a.adjust(1)

def a():

raise ValueError

The raise statement automatically instantiates classes derived from Exception, so the brackets are not required.

- A new constant folding transform, which is enabled by default.

This will evaluate simple expressions when minifying, e.g.

SECONDS_IN_A_DAY = 60 * 60 * 24

Will be minified to:

SECONDS_IN_A_DAY = 86400

- Annotation removal is now more configurable, with separate options for:

- Removal of variable annotations (`--no-remove-variable-annotations`)

- Removal of function return annotations (`--no-remove-return-annotations`)

- Removal of function argument annotations (`--remove-argument-annotations`)

- Removal of class attribute annotations (`--no-remove-class-annotations`)

The default behavior has changed, with class attribute annotations no longer removed by default.

These are increasingly being used at runtime, and removing them can cause issues.

- Fixed various subtle issues with renaming of names that overlap class scope.

- A new transform to remove `return` statements that are not required, which is enabled by default.

e.g.

```python

def important(a):

if a > 3:

return a

if a < 2:

return None

a.adjust(1)

return None

```

Will be minified to:

```python

def important(a):

if a > 3:

return a

if a < 2:

return

a.adjust(1)

```

- The f-string debug specifier will now be used where possible, e.g. `f'my_var={my_var!r}'` will be minified to `f'{my_var=}'`.

The debug specifier should now be preserved where it is used in the input source.

- python-minifier package

- pyminify command

[2.10.0]: https://github.com/dflook/python-minifier/compare/2.9.0...2.10.0

[2.9.0]: https://github.com/dflook/python-minifier/compare/2.8.1...2.9.0

[2.8.1]: https://github.com/dflook/python-minifier/compare/2.8.0...2.8.1

[2.8.0]: https://github.com/dflook/python-minifier/compare/2.7.0...2.8.0

Note that python-minifier depends on the python interpreter for parsing source code, so install using a version of python appropriate for your source.

Note that python-minifier depends on the python interpreter for parsing source code,

and outputs source code compatible with the version of the interpreter it is run with.

This means that if you minify code written for Python 3.6 using python-minifier running with Python 3.12,

the minified code may only run with Python 3.12.

python-minifier runs with and can minify code written for Python 2.7 and Python 3.3 to 3.12.