News — Cheetah3 - The Python-Powered Template Engine

# News

## 3.3.3 (2023-10-22)

Minor features:

> - Protect `import cgi` in preparation to Python 3.13.

Tests:

> - Run tests with Python 3.12.

CI:

> - GHActions: Ensure `pip` only if needed

>   This is to work around a problem in conda with Python 3.7 - it brings in wrong version of `setuptools` incompatible with Python 3.7.

## 3.3.2 (2023-08-08)

Bug fixes:

> - Fixed printing to stdout in `CheetahWrapper`.

CI:

> - CI(GHActions): Install all Python and PyPy versions from `conda-forge`.

## 3.3.1 (2022-12-25)

Bug fixes:

> - Fixed `ImportHooks` under PyPy3.

Tests:

> - Run tests with PyPy3.

CI:

> - Use `conda` to install older Pythons

>   Ubuntu >= 22 and `setup-python` dropped Pythons < 3.7. Use `s-weigand/setup-conda` instead of `setup-python`.

## 3.3.0.post1 (2022-11-26)

Tests:

> - Run tests with Python 3.11.

> - Fix DeprecationWarning: `unittest.findTestCases()` is deprecated. Use `unittest.TestLoader.loadTestsFromModule()` instead.

CI:

> - Publish wheels at Github Releases.

## 3.3.0 (2022-10-10)

Great move:

> - PyPI has wrongfully classified project `Cheetah3` as “critical”. This puts a burden to use 2FA to manage the project at PyPI. To avoid the burden the project is renamed to `CT3` at PyPI. There will be no updates for `Cheetah3`. Sorry for the inconvenience!

Minor features:

> - Use relative imports everywhere.

Tests:

> - Run pure-python `NameMapper` tests in a separate process.

> - Fixed a bug in tests with pure-python `NameMapper`.

> - Add Python 3.10 to `tox.ini`.

CI:

> - Migrated to GitHub Actions.

>   Due to the absent of Python 3.4 at GH Actions tests are not run and wheels are not built. Installation from sources should work.

>   Due to GH Actions lacking old compilers for w32/w64 releases for old Python versions (currently 2.7) are packaged without compiled _namemapper.pyd extension. Cheetah can be used without compiled _namemapper.pyd extension. A pure-python replacement should work; `Cheetah` imports it automatically if the compiled extension is not available.

> - Stop testing at Travis CI.

> - Stop testing at AppVeyor.

## 3.2.7b1 (2021-07-25)

Minor features:

> - Load from JSON file to searchlist (similar to loading from pickle).

Bug fixes:

> - Fix `filetype` for Python 2 in `Template`.

Build, CI:

> - Build wheels for `aarch64` at Travis; publish them at PyPI.

Tests:

> - `tox.ini`: Limit `VIRTUALENV_PIP` version for Python 3.4.

## 3.2.6.post1 (2021-02-22)

Tests:

> - Add Python 3.9 to `tox.ini`.

> - Refactor `tox.ini`.

CI:

> - Run tests with Python 3.9 at Travis and AppVeyor.

> - Run tests for Python 3.4 with `tox` under Python 3.5.

## 3.2.6 (2020-10-01)

Bug fixes:

> - Fixed use of uninitialized variable in _namemapper.

## 3.2.5 (2020-05-16)

Build:

> - Install `Cheetah3` + `markdown` (used in `Cheetah.Filters`) using `pip install cheetah3[filters]` (or `cheetah3[markdown]`).

CI:

> - Run tests with Python 3.8 at Travis CI.

## 3.2.4 (2019-10-22)

Minor features:

> - Import from `collections` for Python 2, from `collections.abc` for Python 3.

Bug fixes:

> - Fixed infinite recursion in `ImportManager` on importing module `_bootlocale` inside `open()`.

## 3.2.3 (2019-05-10)

Bug fixes:

> - Fixed infinite recursion in `ImportManager` on importing a builtin module.

Documentation:

> - The site https://cheetahtemplate.org/ is now served with HTTPS.

> - Updated docs regarding fixed tests.

Tests:

> - Removed `unittest.main()` calls from tests: `python -m unittest discover -t Cheetah -s Cheetah/Tests -p '[A-Z]*.py'` does it.

> - Fixed `cheetah test` command.

> - Fixed script `buildandrun`: copy test templates to the `build/lib` directory.

## 3.2.2 (2019-04-29)

Minor features:

> - Replaced outdated and insecure `mktemp` with `mkstemp`.

Bug fixes:

> - Fixed bugs in `TemplateCmdLineIface.py`: read binary pickles from stdin and files.

Tests:

> - Use `cgi.escape()` for Python 2, `html.escape()` for Python 3.

> - Created tests for `TemplateCmdLineIface`.

## 3.2.1 (2019-03-19)

Minor features:

> - Changed `LoadTemplate.loadTemplate{Module,Class}`: the loaded module’s `__name__` set to just the file name.

> - Use `imp` for Python 2, `importlib` for Python 3.

Bug fixes:

> - Fix a bug in `LoadTemplate.loadTemplate{Module,Class}`: raise `ImportError` if the template was not found.

CI:

> - At Travis deploy wheels for macOS.

> - At AppVeyor deploy wheels directly to PyPI.

## 3.2.0 (2019-02-06)

Features:

> - Dropped support for Python 3.3.

> - Implement `LoadTemplate.loadTemplate{Module,Class}` to load templates from `.py[co]`, `.py` or `.tmpl`.

> - `CheetahDirOwner` caches compiled template in the template directory.

> - `CheetahDirOwner` now silently ignores errors on compiled templates writing. To get tracebacks set `CheetahDirOwner.debuglevel = 1`.

> - `CheetahDirOwner` and `DirOwner` byte-compile compiled templates to `.pyc/.pyo`. Errors on writing are silently ignored.

Minor features:

> - Implement `Compiler.__unicode__` under Python 2 and `Compiler.__bytes__` under Python 3.

Bug fixes:

> - Fix a bug in `Compiler.__str__`: under Python 2 the method always returns str; it encodes unicode to str using encoding from the compiled source. Under Python 3 the method decodes bytes to str.

Code:

> - Source code was made flake8-clean using the latest flake8.

Documentation:

> - Remove outdated section markers.

> - Better documentation for ImportHooks.

> - Add an example of a universal makefile.

CI:

> - Run tests with Python 3.7.

> - At Travis deploy sdists and wheels for tags.

## 3.1.0 (2018-03-03)

Features:

> - Fix Cheetah to work with PyPy. Pull request by Mathias Stearn.

Minor features:

> - Code cleanup: fix code style to satisfy flake8 linter.

Documentation:

> - Rename www directory to docs.

Tests:

> - Run pypy tests at AppVeyor.

> - Use remove-old-files.py from ppu to cleanup pip cache at Travis and AppVeyor.

## 3.0.1 (2018-02-27)

Bug fixes:

> - Fix a minor bug in Compiler.

## 3.0.0 (2017-05-07)

Major features:

> - !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!!

> - Stop supporting Python older than 2.7.

> - Update code to work with Python 3.3+. Tested with 3.3, 3.4, 3.5 and 3.6.

Minor features:

> - Use ‘/usr/bin/env python’ for scripts; this allows eggs/wheels to be installed into virtual environments.

Bug fixes:

> - Fix a bug in multiple inheritance (#extend Parent1, Parent2). Pull request by Jonathan Ross Rogers.

> - Fix bugs in pure-python NameMapper.py. Bugs reported by Noah Ingham, patches by Adam Karpierz, tests by Oleg Broytman.

Tests:

> - Run tests at Travis (Linux) and AppVeyor (w32) with Python 2.7, 3.3, 3.4, 3.5 and 3.6; x86 and x64.

> - Fix a problem in Unicode tests - cleanup temporary files.

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