chg: [dependencies] Updated dependencies.

build(deps-dev): bump setuptools from 69.5.1 to 70.0.0

.builds/debian.yml

@@ -1,42 +0,0 @@
-image: debian/bullseye
-sources:
-  - https://git.sr.ht/~cedric/stegano
-packages:
-  - python3
-  - python3-dev
-  - python3-pip
-  - python3-setuptools
-  - python3-venv
-  - rustc
-  - cargo
-  - libffi-dev
-  - libssl-dev
-  - libjpeg-dev
-  - libpng-dev
-  - libfreetype6-dev
-  - ffmpeg
-  - libsm6
-  - libxext6
-environment:
-  project: stegano
-tasks:
-  - dependencies: |
-      pip3 install --user poetry
-      export PATH="$PATH:/home/build/.local/bin"
-      cd ${project}
-      poetry install
-  - lint: |
-      export PATH="$PATH:/home/build/.local/bin"
-      cd ${project}
-      # stop the build if there are Python syntax errors or undefined names
-      poetry run flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-      # exit-zero treats all errors as warnings.
-      poetry run flake8 . --count --max-complexity=10 --max-line-length=127 --statistics
-  - test: |
-      export PATH="$PATH:/home/build/.local/bin"
-      cd ${project}
-      poetry run nose2 -v --pretty-assert
-  - typecheck: |
-      export PATH="$PATH:/home/build/.local/bin"
-      cd ${project}
-      poetry run mypy .

.github/workflows/pythonapp.yaml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: [3.8, 3.9, 3.10.2]
+        python-version: ["3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v1
@@ -22,14 +22,14 @@ jobs:
     - name: Install dependencies
       run: |
         pip install poetry
-        poetry install
+        poetry install --with dev
 
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
-        poetry run flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        poetry run flake8 stegano --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        poetry run flake8 . --count --max-complexity=15 --max-line-length=127 --statistics
+        poetry run flake8 stegano --count --max-complexity=15 --max-line-length=127 --statistics
 
     - name: Test with pytest
       run: |
@@ -37,6 +37,6 @@ jobs:
       env:
         testing: actions
 
-    - name: Type check with mypy
-      run: |
-        poetry run mypy .
+    # - name: Type check with mypy
+    #   run: |
+    #     poetry run mypy .

.github/workflows/release.yml

@@ -0,0 +1,27 @@
+on:
+  release:
+    types:
+      - published
+
+name: release
+
+jobs:
+  pypi-publish:
+    name: Upload release to PyPI
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/Stegano
+
+    permissions:
+      id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Install Poetry
+        run: python -m pip install --upgrade pip poetry
+      - name: Build artifacts
+        run: poetry build
+      - name: Publish package distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1

.pre-commit-config.yaml

@@ -0,0 +1,36 @@
+ci:
+  autoupdate_schedule: monthly
+repos:
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v3.3.1
+    hooks:
+      - id: pyupgrade
+        args: ["--py37-plus"]
+  - repo: https://github.com/PyCQA/isort
+    rev: 5.12.0
+    hooks:
+      - id: isort
+  - repo: https://github.com/psf/black
+    rev: 22.3.0
+    hooks:
+      - id: black
+  - repo: https://github.com/PyCQA/flake8
+    rev: 6.1.0
+    hooks:
+      - id: flake8
+        additional_dependencies:
+          - flake8-bugbear
+          - flake8-implicit-str-concat
+        args: ["--max-line-length=125"]
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.1.0
+    hooks:
+      - id: fix-byte-order-marker
+      - id: trailing-whitespace
+        exclude: .md
+      - id: end-of-file-fixer
+        exclude: tests/.*
+  - repo: https://github.com/pypa/pip-audit
+    rev: v2.7.3
+    hooks:
+      -   id: pip-audit

.readthedocs.yaml

@@ -0,0 +1,22 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+  configuration: docs/conf.py
+
+# We recommend specifying your dependencies to enable reproducible builds:
+# https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
+python:
+  install:
+  - requirements: docs/requirements.txt

CHANGELOG.md

@@ -1,216 +1,251 @@
 ## Release History
 
+### 1.0.1 (2025-05-03)
+
+- Improved the packaging configuration for the command line (stegano.console).
+
+
+### 1.0.0 (2025-04-26)
+
+- Updated dependencies.
+- Improved the packaging configuration.
+- Fixed typing errors.
+
+
+### 0.11.5 (2025-02-13)
+
+- Updated dependencies.
+- Aligned pyproject.toml with the standard specification.
+- Publishing to PyPI using a Trusted Publisher.
+
+
+### 0.11.4 (2024-09-07)
+
+- Added a parameter, close_file, to lsb.reveal in order to
+  specify if the file must be closed at the end of the processing.
+
+
+### 0.11.3 (2024-01-02)
+
+- Stegano now supports Python 3.12. Support of Python 3.8 has been removed.
+
+
+### 0.11.2 (2023-05-23)
+
+- improved typing of various functions;
+- updated dependencies.
+
 
 ### 0.11.1 (2022-11-20)
 
-* Fixed a bug in the command line when no sub-command is specified.
+- Fixed a bug in the command line when no sub-command is specified.
 
 
 ### 0.11.0 (2022-11-20)
 
-* Reduced memory footprint and processing speed,
+- Reduced memory footprint and processing speed,
   the modules ``lsb`` and ``lsbset`` have been merged
   ([PR #34](https://github.com/cedricbonhomme/Stegano/pull/34)).
 
 
 ### 0.10.2 (2022-01-13)
 
-* Stegano now uses Pillow 9.0.0 (CVE-2022-22815).
+- Stegano now uses Pillow 9.0.0 (CVE-2022-22815).
 
 
 ### 0.10.1 (2021-11-30)
 
-* Stegano now uses OpenCV Python 4.5.4 abd Numpy 1.21.4.
+- Stegano now uses OpenCV Python 4.5.4 abd Numpy 1.21.4.
 
 
 ### 0.10.0 (2021-11-29)
 
-* new: Implemented Shi-Tomashi corner generator
+- new: Implemented Shi-Tomashi corner generator
   ([PR #32](https://github.com/cedricbonhomme/Stegano/pull/32)).
   Implemented by thundersparkf (see CONTRIBUTORS.md file).
 
 
 ### 0.9.9 (2021-07-02)
 
-* Stegano now uses Pillow 8.3.0.
+- Stegano now uses Pillow 8.3.0.
 
 
 ### 0.9.8 (2019-12-20)
 
-* Stegano is now using poetry;
-* minor improvements to the command line.
+- Stegano is now using poetry;
+- minor improvements to the command line.
 
 
 ### 0.9.7 (2019-10-27)
 
-* fixed markdown of the previous release.
+- fixed markdown of the previous release.
 
 
 ### 0.9.6 (2019-10-27)
 
-* fixed markdown of the previous release;
+- fixed markdown of the previous release;
 
 
 ### 0.9.5 (2019-10-27)
 
-* updated dependencies;
-* home page of the project is now: https://git.sr.ht/~cedric/Stegano
+- updated dependencies;
+- home page of the project is now: https://github.com/cedricbonhomme/Stegano
 
 
 ### 0.9.4 (2019-06-05)
 
-* new: Implemented LFSR generator (with tests and CLI)
+- new: Implemented LFSR generator (with tests and CLI)
   ([PR #27](https://github.com/cedricbonhomme/Stegano/pull/27))
-* new: Implemented Ackermann generators CLI interface
+- new: Implemented Ackermann generators CLI interface
   ([PR #26](https://github.com/cedricbonhomme/Stegano/pull/26))
-* new: The Ackermann functions are not actual generators
+- new: The Ackermann functions are not actual generators
   ([#24](https://github.com/cedricbonhomme/Stegano/issues/24))
-* new: add a shift parameter for the lsbmodule
+- new: add a shift parameter for the lsbmodule
   ([#25](https://github.com/cedricbonhomme/Stegano/issues/25))
-* fix: lsbset.hide cause .png transparent area lost
+- fix: lsbset.hide cause .png transparent area lost
   ([#23](https://github.com/cedricbonhomme/Stegano/issues/23))
 
 
 ### 0.9.3 (2019-04-10)
 
-* it is now possible to either pass the location of an image or directly pass
+- it is now possible to either pass the location of an image or directly pass
   an already opened Image.Image to the hide and reveal methods;
-* code re-formatted a bit with black.
+- code re-formatted a bit with black.
 
 
 ### 0.9.2 (2019-04-04)
 
-* updated Pillow dependency to version 6.0.0 in order to fix a bug when opening
+- updated Pillow dependency to version 6.0.0 in order to fix a bug when opening
   some PNG files (https://github.com/python-pillow/Pillow/issues/3557).
 
 
 ### 0.9.1 (2019-03-06)
 
-* updated Pillow dependency in order to fix a bug when opening some PNG files.
+- updated Pillow dependency in order to fix a bug when opening some PNG files.
 
 
 ### 0.9.0 (2018-12-18)
 
-* added the possibility to shift the encoded bits when using the lsbset module.
+- added the possibility to shift the encoded bits when using the lsbset module.
 
 
 ### 0.8.6 (2018-11-05)
 
-* fixed a potential security issue related to CVE-2018-18074.
+- fixed a potential security issue related to CVE-2018-18074.
 
 
 ### 0.8.5 (2018-04-18)
 
-* Fixed an encoding problem which occured on Windows during the installation
+- Fixed an encoding problem which occured on Windows during the installation
   of the module.
 
 
 ### 0.8.4 (2018-02-28)
 
-* Stegano is ready for use with pipenv and pipsi.
+- Stegano is ready for use with pipenv and pipsi.
 
 
 ### 0.8.3 (2018-02-23)
 
-* the recommended way to install Stegano is now to use pipenv.
+- the recommended way to install Stegano is now to use pipenv.
 
 
 ### 0.8.2 (2017-12-20)
 
-* Fixed a bug with the new 'encoding' function when using Stegano as a command
+- Fixed a bug with the new 'encoding' function when using Stegano as a command
   line tool. No default value was set. Default value is UTF-8.
 
 
 ### 0.8.1 (2017-05-16)
 
-* it is now possible to specify the encoding (UTF-8 or UTF-32LE) of the message
+- it is now possible to specify the encoding (UTF-8 or UTF-32LE) of the message
   to hide/reveal through the command line;
-* the help of the command line now displays the available choices for the
+- the help of the command line now displays the available choices for the
   arguments, if it is necessary (list of available encodings, list of available
   generators);
-* tests expected results lies now in a dedicated folder;
-* a script has been added in order to get proper exit code check for mypy.
+- tests expected results lies now in a dedicated folder;
+- a script has been added in order to get proper exit code check for mypy.
 
 
 ### 0.8 (2017-05-06)
 
-* updated command line. All commands are now prefixed with *stegano-*;
-* improved type hints;
-* it is possible to load and save images from and to file objects (BytesIO);
-* improved checks when revealing a message with the lsbset module fails.
+- updated command line. All commands are now prefixed with *stegano-*;
+- improved type hints;
+- it is possible to load and save images from and to file objects (BytesIO);
+- improved checks when revealing a message with the lsbset module fails.
 
 
 ### 0.7.1 (2017-05-05)
 
-* improved generators for the lsb-set module;
-* improved tests for the generators;
-* improved type hints.
+- improved generators for the lsb-set module;
+- improved tests for the generators;
+- improved type hints.
 
 
 ### 0.7 (2017-05-04)
 
-* unicode is now supported. By default UTF-8 encoding is used. UTF-32LE can also
+- unicode is now supported. By default UTF-8 encoding is used. UTF-32LE can also
   be used to hide non-ASCII characters. UTF-8 (8 bits) is the default choice
   since it is possible to hide longer messages with it.
-* improved checks with type hints.
+- improved checks with type hints.
 
 
 ### 0.6.9 (2017-03-10)
 
-* introduces some type hints (PEP 484);
-* more tests for the generators and for the tools module;
-* updated descriptions of generators;
-* fixed a bug with a generator that has been previously renamed.
+- introduces some type hints (PEP 484);
+- more tests for the generators and for the tools module;
+- updated descriptions of generators;
+- fixed a bug with a generator that has been previously renamed.
 
 
 ### 0.6.8 (2017-03-08)
 
-* bugfix: fixed #12: Error when revealing a hidden binary file in an image.
+- bugfix: fixed #12: Error when revealing a hidden binary file in an image.
 
 
 ### 0.6.7 (2017-02-21)
 
-* bugfix: added missing dependency in the setup.py file.
+- bugfix: added missing dependency in the setup.py file.
 
 
 ### 0.6.6 (2017-02-20)
 
-* improved docstrings for the desciption of the generators;
-* improved the command which displays the list of generators.
+- improved docstrings for the desciption of the generators;
+- improved the command which displays the list of generators.
 
 
 ### 0.6.5 (2017-02-16)
 
-* added a command to list all available generators for the lsb-set module;
-* test when the data image is coming via byte stream, for the lsb module.
+- added a command to list all available generators for the lsb-set module;
+- test when the data image is coming via byte stream, for the lsb module.
 
 
 ### 0.6.4 (2017-02-06)
 
-* a command line for the 'red' module has been added;
-* bugfix: fixed a bug in the lsb-set command line when the generator wasn't
+- a command line for the 'red' module has been added;
+- bugfix: fixed a bug in the lsb-set command line when the generator wasn't
   specified by the user.
 
 
 ### 0.6.3 (2017-01-29)
 
-* Support for transparent PNG images has been added (lsb and lsbset modules).
+- Support for transparent PNG images has been added (lsb and lsbset modules).
 
 
 ### 0.6.2 (2017-01-19)
 
-* bugfix: solved a bug when the image data is coming via byte streams (ByteIO),
+- bugfix: solved a bug when the image data is coming via byte streams (ByteIO),
   for the exifHeader hiding method.
 
 
 ### 0.6.1 (2016-08-25)
 
-* reorganization of the steganalysis sub-module.
+- reorganization of the steganalysis sub-module.
 
 
 ### 0.6 (2016-08-04)
 
-* improvements of the command line of Stéganô. The use of Stéganô through the
+- improvements of the command line of Stéganô. The use of Stéganô through the
   command line has slightly changed ('hide' and 'reveal' are now sub-parameters
   of the command line). No changes if you use Stéganô as a module in your
   software. The documentation has been updated accordingly.
@@ -218,66 +253,66 @@
 
 ### 0.5.5 (2016-08-03)
 
-* bugfix: Incorrect padding size in `base642string` in tools.base642binary().
+- bugfix: Incorrect padding size in `base642string` in tools.base642binary().
 
 
 ### 0.5.4 (2016-05-22)
 
-* the generator provided to the functions lsbset.hide() and lsbset.reveal() is
+- the generator provided to the functions lsbset.hide() and lsbset.reveal() is
   now a function. This is more convenient for a user who wants to use a custom
   generator (not in the module lsbset.generators).
-* performance improvements for the lsb and lsbset modules.
+- performance improvements for the lsb and lsbset modules.
 
 
 ### 0.5.3 (2016-05-19)
 
-* reorganization of all modules. No impact for the users of Stegano.
+- reorganization of all modules. No impact for the users of Stegano.
 
 
 ### 0.5.2 (2016-05-18)
 
-* improvements and bug fixes for the exifHeader module;
-* added unit tests for the exifHeader module;
-* improvements of the documentation.
+- improvements and bug fixes for the exifHeader module;
+- added unit tests for the exifHeader module;
+- improvements of the documentation.
 
 
 ### 0.5.1 (2016-04-16)
 
-* minor improvements and bug fixes;
-* added unit tests for the slsb and slsbset modules.
+- minor improvements and bug fixes;
+- added unit tests for the slsb and slsbset modules.
 
 
 ### 0.5 (2016-03-18)
 
-* management of greyscale images.
+- management of greyscale images.
 
 
 ### 0.4.6 (2016-03-12)
 
-* bugfix when the length of the message to hide is not divisible by 3,
+- bugfix when the length of the message to hide is not divisible by 3,
   for the slsb and slsbset module.
 
 
 ### 0.4.5 (2015-12-23)
 
-* bugfix.
+- bugfix.
 
 
 ### 0.4.4 (2015-12-23)
 
-* new project home page;
-* minor updated to the documentation.
+- new project home page;
+- minor updated to the documentation.
 
 
 ### 0.4.3 (2015-10-06)
 
-* bug fixes for Python 3;
-* bug fixes in the scripts in *./bin*.
+- bug fixes for Python 3;
+- bug fixes in the scripts in *./bin*.
 
 
 ### 0.4.2 (2015-10-05)
 
-* first stable release on PypI.
+- first stable release on PypI.
 
 
 ### 0.4 (2012-01-02)
@@ -291,16 +326,16 @@ Python codes as a Python module or as a program in your scripts.
 
 ### 0.3 (2011-04-15)
 
-* you can now use Stéganô as a library in your Python program;
+- you can now use Stéganô as a library in your Python program;
   (python setup.py install) or as a 'program' thanks to the scripts provided
   in the bin directory;
-* new documentation (reStructuredText) comes with Stéganô.
+- new documentation (reStructuredText) comes with Stéganô.
 
 
 ### 0.2 (2011-03-24)
 
-* this release introduces some bugfixes and a major speed improvement of the
+- this release introduces some bugfixes and a major speed improvement of the
   *reveal* function for the LSB method. Moreover it is now possible to hide a
   binary file (ogg, executable, etc.);
-* a new technique for hiding/revealing a message in a JPEG picture by using the
+- a new technique for hiding/revealing a message in a JPEG picture by using the
   description field of the image is provided.

CONTRIBUTORS.md

@@ -16,5 +16,6 @@
 - panni <panni@fragstore.net>
 - Peter Justin <peter@peterjustin.me>
 - thundersparkf - https://github.com/thundersparkf
+- Mickaël Schoentgen <mschoentgen@nuxeo.com>
 
 And thank you to the testers!

README.md

@@ -1,9 +1,8 @@
 # Stegano
 
-[![builds.sr.ht status](https://builds.sr.ht/~cedric/stegano.svg)](https://builds.sr.ht/~cedric/stegano)
 [![Workflow](https://github.com/cedricbonhomme/Stegano/workflows/Python%20application/badge.svg?style=flat-square)](https://github.com/cedricbonhomme/Stegano/actions?query=workflow%3A%22Python+application%22)
 
-[Stegano](https://sr.ht/~cedric/stegano), a pure Python Steganography
+[Stegano](https://github.com/cedricbonhomme/Stegano), a pure Python Steganography
 module.
 
 Steganography is the art and science of writing hidden messages in such a way
@@ -12,9 +11,6 @@ existence of the message, a form of security through obscurity. Consequently,
 functions provided by Stegano only hide messages, without encryption.
 Steganography is often used with cryptography.
 
-For reporting issues, visit the tracker here:
-https://todo.sr.ht/~cedric/stegano
-
 
 ## Installation
 
@@ -97,11 +93,23 @@ Contributions are welcome. If you want to contribute to Stegano I highly
 recommend you to install it in a Python virtual environment with poetry.
 
 
+## Donations
+
+If you wish and if you like Stegano, you can donate via GitHub Sponsors:
+
+[![GitHub Sponsors](https://img.shields.io/github/sponsors/cedricbonhomme)](https://github.com/sponsors/cedricbonhomme)
+
+or with Bitcoin to this address:  
+bc1q56u6sj7cvlwu58v5lemljcvkh7v2gc3tv8mj0e
+
+Thank you !
+
+
 ## License
 
 This software is licensed under
 [GNU General Public License version 3](https://www.gnu.org/licenses/gpl-3.0.html)
 
-Copyright (C) 2010-2022 [Cédric Bonhomme](https://www.cedricbonhomme.org)
+Copyright (C) 2010-2025 [Cédric Bonhomme](https://www.cedricbonhomme.org)
 
 For more information, [the list of authors and contributors](CONTRIBUTORS.md) is available.

docs/conf.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 #
 # Stéganô documentation build configuration file, created by
 # sphinx-quickstart on Wed Jul 25 13:33:39 2012.
@@ -10,17 +9,13 @@
 #
 # All configuration values have a default; values that are commented out
 # serve to show the default.
-
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 # sys.path.insert(0, os.path.abspath('.'))
-
 # -- General configuration -----------------------------------------------------
-
 # If your documentation needs a minimal Sphinx version, state it here.
 # needs_sphinx = '1.0'
-
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = []
@@ -39,7 +34,7 @@ master_doc = "index"
 
 # General information about the project.
 project = "Stegano"
-copyright = "2010-2022, Cédric Bonhomme"
+copyright = "2010-2025, Cédric Bonhomme"
 author = "Cédric Bonhomme <cedric@cedricbonhomme.org>"
 
 # The version info for the project you're documenting, acts as replacement for
@@ -170,6 +165,6 @@ latex_documents = [
 latex_show_urls = True
 latex_show_pagerefs = True
 
-ADDITIONAL_PREAMBLE = """
+ADDITIONAL_PREAMBLE = r"""
 \setcounter{tocdepth}{3}
 """

docs/index.rst

@@ -6,10 +6,6 @@
 Presentation
 ============
 
-.. image:: https://builds.sr.ht/~cedric/stegano.svg
-    :target: https://builds.sr.ht/~cedric/stegano
-
-
 Stegano_ is a pure Python steganography_ module.
 
 Steganography is the art and science of writing hidden messages in such a way
@@ -53,7 +49,7 @@ Tutorial
     steganalysis
 
 You can have a look at the
-`unit tests <https://git.sr.ht/~cedric/stegano/tree/master/tests>`_.
+`unit tests <https://github.com/cedricbonhomme/Stegano/tree/master/tests>`_.
 
 
 License
@@ -77,7 +73,7 @@ Contact
 
 
 .. _Python: https://www.python.org
-.. _Stegano: https://sr.ht/~cedric/stegano
+.. _Stegano: https://github.com/cedricbonhomme/Stegano
 .. _`Pillow`: https://pypi.python.org/pypi/Pillow
 .. _`piexif`: https://pypi.python.org/pypi/piexif
 .. _steganography: http://en.wikipedia.org/wiki/Steganography

docs/installation.rst

@@ -12,7 +12,4 @@ If you want to retrieve the source code (with the unit tests):
 
 .. code-block:: bash
 
-    $ git clone https://git.sr.ht/~cedric/stegano
-
-.. image:: https://builds.sr.ht/~cedric/stegano.svg
-    :target: https://builds.sr.ht/~cedric/stegano
+    $ git clone https://github.com/cedricbonhomme/Stegano

docs/module.rst

@@ -2,7 +2,7 @@ Using Stegano as a Python module
 ================================
 
 You can find more examples in the
-`unit tests directory <https://git.sr.ht/~cedric/stegano/tree/master/tests>`_.
+`unit tests directory <https://github.com/cedricbonhomme/Stegano/tree/master/tests>`_.
 
 LSB method
 ----------

pyproject.toml

@@ -1,66 +1,79 @@
-[tool.poetry]
+[build-system]
+requires = ["poetry-core>=2.0"]
+build-backend = "poetry.core.masonry.api"
+
+
+[project]
 name = "stegano"
-version = "0.11.1"
+version = "1.0.1"
 description = "A pure Python Steganography module."
 authors = [
-    "Cédric Bonhomme <cedric@cedricbonhomme.org>"
+    {name = "Cédric Bonhomme", email= "cedric@cedricbonhomme.org"}
 ]
 license = "GPL-3.0-or-later"
-
 readme = "README.md"
+keywords = ["Steganography", "Security", "Stegano"]
 
-homepage = "https://sr.ht/~cedric/stegano"
-repository = "https://git.sr.ht/~cedric/stegano"
-documentation = "https://stegano.readthedocs.io"
+dynamic = ["classifiers"]
 
-keywords = ["steganography", "security", "stegano"]
+requires-python = ">=3.10,<4.0"
+dependencies = [
+    "pillow (>=9.5,<11.0)",
+    "piexif (>=1.1.3)",
+    "crayons (>=0.4.0)",
+    "opencv-python (>=4.8.1.78)"
+]
 
+[project.urls]
+Homepage = "https://github.com/cedricbonhomme/Stegano"
+Changelog = "https://github.com/cedricbonhomme/Stegano/blob/master/CHANGELOG.md"
+Repository = "https://github.com/cedricbonhomme/Stegano"
+Documentation = "https://stegano.readthedocs.io"
+
+[project.scripts]
+stegano-lsb = "stegano.console.lsb:main"
+stegano-red = "stegano.console.red:main"
+stegano-steganalysis-parity = "stegano.console.parity:main"
+stegano-steganalysis-statistics = "stegano.console.statistics:main"
+
+
+[tool.poetry]
+requires-poetry = ">=2.0"
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Environment :: Console",
     "Intended Audience :: Developers",
     "Intended Audience :: Science/Research",
     "Topic :: Security",
-    "Operating System :: OS Independent",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
+    "Operating System :: POSIX :: Linux",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)"
 ]
-
 include = [
     "README.md",
     "COPYING",
     "CHANGELOG.md",
     "docs/**/*",
-    "bin/*"
 ]
 
-[tool.poetry.scripts]
-stegano-lsb = "bin.lsb:main"
-stegano-red = "bin.red:main"
-stegano-steganalysis-parity = "bin.parity:main"
-stegano-steganalysis-statistics = "bin.statistics:main"
 
-[tool.poetry.dependencies]
-python = ">=3.8,<3.12"
-pillow = "^9.2.0"
-piexif = "^1.1.3"
-crayons = "^0.4.0"
-opencv-python = "^4.6.0.66"
+[tool.poetry.group.dev.dependencies]
+mypy = "^1.8.0"
+flake8 = "^6.0.0"
+nose2 = "^0.14.0"
+Sphinx = "^6.2.1"
+pre-commit = "^3.6.0"
 
-[tool.poetry.dev-dependencies]
-mypy = "^0.910"
-flake8 = "^4.0.1"
-nose2 = "^0.10.0"
-Sphinx = "^4.2.0"
 
-[build-system]
-requires = ["poetry>=0.12"]
-build-backend = "poetry.masonry.api"
+[tool.poetry.group.dev]
+optional = true
+
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.12"
 check_untyped_defs = true
 ignore_errors = false
 ignore_missing_imports = true
@@ -75,3 +88,6 @@ show_error_context = true
 pretty = true
 
 exclude = "build|dist|docs|stegano.egg-info"
+
+[tool.isort]
+profile = "black"

stegano/__init__.py

@@ -1,10 +1,5 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
-from . import red
-from . import exifHeader
-from . import lsb
-
-from . import steganalysis
+from . import exifHeader, lsb, red, steganalysis
 
 __all__ = ["red", "exifHeader", "lsb", "steganalysis"]

stegano/console/lsb.py

@@ -1,8 +1,6 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
 # For more information : https://github.com/cedricbonhomme/Stegano
 #
@@ -26,6 +24,7 @@ __revision__ = "$Date: 2019/06/04 $"
 __license__ = "GPLv3"
 
 import inspect
+
 import crayons
 
 try:
@@ -34,10 +33,10 @@ try:
 except Exception:
     print("Install stegano: pipx install Stegano")
 
-from stegano import tools
-
 import argparse
 
+from stegano import tools
+
 
 class ValidateGenerator(argparse.Action):
     def __call__(self, parser, args, values, option_string=None):
@@ -76,7 +75,7 @@ def main():
         choices=tools.ENCODINGS.keys(),
         default="UTF-8",
         help="Specify the encoding of the message to hide."
-        + " UTF-8 (default) or UTF-32LE.",
+        " UTF-8 (default) or UTF-32LE.",
     )
 
     # Generator
@@ -131,7 +130,7 @@ def main():
         choices=tools.ENCODINGS.keys(),
         default="UTF-8",
         help="Specify the encoding of the message to reveal."
-        + " UTF-8 (default) or UTF-32LE.",
+        " UTF-8 (default) or UTF-32LE.",
     )
 
     # Generator
@@ -179,7 +178,7 @@ def main():
                     generator = getattr(generators, arguments.generator_function[0])()
 
             except AttributeError:
-                print("Unknown generator: {}".format(arguments.generator_function))
+                print(f"Unknown generator: {arguments.generator_function}")
                 exit(1)
 
     if arguments.command == "hide":
@@ -223,6 +222,6 @@ def main():
         all_generators = inspect.getmembers(generators, inspect.isfunction)
         for generator in all_generators:
             print("Generator id:")
-            print("    {}".format(crayons.green(generator[0], bold=True)))
+            print(f"    {crayons.green(generator[0], bold=True)}")
             print("Desciption:")
-            print("    {}".format(generator[1].__doc__))
+            print(f"    {generator[1].__doc__}")

stegano/console/parity.py

@@ -1,8 +1,6 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
 # For more information : https://github.com/cedricbonhomme/Stegano
 #
@@ -24,10 +22,10 @@ __version__ = "$Revision: 0.7 $"
 __date__ = "$Date: 2016/08/25 $"
 __license__ = "GPLv3"
 
-from PIL import Image
-
 import argparse
 
+from PIL import Image
+
 try:
     from stegano.steganalysis import parity
 except Exception:

stegano/console/red.py

@@ -1,8 +1,6 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
 # For more information : https://github.com/cedricbonhomme/Stegano
 #

stegano/console/statistics.py

@@ -1,8 +1,6 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
 # For more information : https://github.com/cedricbonhomme/Stegano
 #
@@ -25,10 +23,10 @@ __date__ = "$Date: 2016/08/26 $"
 __revision__ = "$Date: 2016/08/26 $"
 __license__ = "GPLv3"
 
-from PIL import Image
-
 import argparse
 
+from PIL import Image
+
 try:
     from stegano.steganalysis import statistics
 except Exception:

stegano/exifHeader/__init__.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
 from .exifHeader import hide, reveal
 

stegano/exifHeader/exifHeader.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -26,6 +24,7 @@ __revision__ = "$Date: 2017/01/18 $"
 __license__ = "GPLv3"
 
 import piexif
+
 from stegano import tools
 
 
@@ -37,11 +36,11 @@ def hide(
     img_format=None,
 ):
     """Hide a message (string) in an image."""
-    from zlib import compress
     from base64 import b64encode
+    from zlib import compress
 
     if secret_file is not None:
-        with open(secret_file, "r") as f:
+        with open(secret_file) as f:
             secret_message = f.read()
 
     try:

stegano/lsb/__init__.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
 from .lsb import hide, reveal
 

stegano/lsb/generators.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -26,10 +24,11 @@ __revision__ = "$Date: 2021/11/29 $"
 __license__ = "GPLv3"
 
 import itertools
+import math
+from typing import Any, Dict, Iterator, List
+
 import cv2
 import numpy as np
-import math
-from typing import Dict, Iterator, List, Any
 
 
 def identity() -> Iterator[int]:
@@ -73,7 +72,7 @@ def eratosthenes() -> Iterator[int]:
     """Generate the prime numbers with the sieve of Eratosthenes.
     https://oeis.org/A000040
     """
-    d = {}  # type: Dict[int, List[int]]
+    d: Dict[int, List[int]] = {}
     for i in itertools.count(2):
         if i in d:
             for j in d[i]:
@@ -90,8 +89,7 @@ def composite() -> Iterator[int]:
     """
     p1 = 3
     for p2 in eratosthenes():
-        for n in range(p1 + 1, p2):
-            yield n
+        yield from range(p1 + 1, p2)
         p1 = p2
 
 
@@ -225,7 +223,7 @@ def LFSR(m: int) -> Iterator[int]:
         # Add the feedback bit
         state.insert(0, feedback)
         # Convert the registers to an int
-        out = sum([e * (2**i) for i, e in enumerate(state)])
+        out = sum(e * (2**i) for i, e in enumerate(state))
         yield out
 
 
@@ -244,7 +242,7 @@ def shi_tomashi(
         gray, max_corners, quality, min_distance
     )
     corners_int: np.ndarray[Any, np.dtype[np.signedinteger[Any]]] = np.array(
-        np.int0(corners)
+        np.intp(corners)
     )
     i = 0
     while True:

stegano/lsb/lsb.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -27,9 +25,10 @@ __license__ = "GPLv3"
 
 from typing import IO, Iterator, Union
 
-from .generators import identity
 from stegano import tools
 
+from .generators import identity
+
 
 def hide(
     image: Union[str, IO[bytes]],
@@ -68,9 +67,10 @@ def reveal(
     generator: Union[None, Iterator[int]] = None,
     shift: int = 0,
     encoding: str = "UTF-8",
+    close_file: bool = True,
 ):
     """Find a message in an image (with the LSB technique)."""
-    revealer = tools.Revealer(encoded_image, encoding)
+    revealer = tools.Revealer(encoded_image, encoding, close_file)
     width = revealer.encoded_image.width
 
     if not generator:

stegano/red/__init__.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
 from .red import hide, reveal
 

stegano/red/red.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stéganô is a basic Python Steganography module.
-# Copyright (C) 2010-2022  Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2024  Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

stegano/steganalysis/__init__.py

@@ -1,2 +1 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-

stegano/steganalysis/parity.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -36,7 +34,10 @@ def steganalyse(img: Image.Image) -> Image.Image:
     width, height = img.size
     for row in range(height):
         for col in range(width):
-            r, g, b = img.getpixel((col, row))[0:3]
+            if pixel := img.getpixel((col, row)):
+                r, g, b = pixel[0:3]
+            else:
+                raise Exception("Error during steganlysis.")
             if r % 2 == 0:
                 r = 0
             else:

stegano/steganalysis/statistics.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -26,9 +24,7 @@ __revision__ = "$Date: 2021/11/01 $"
 __license__ = "GPLv3"
 
 import typing
-
-from collections import Counter
-from collections import OrderedDict
+from collections import Counter, OrderedDict
 
 
 def steganalyse(img):
@@ -36,7 +32,7 @@ def steganalyse(img):
     Steganlysis of the LSB technique.
     """
     width, height = img.size
-    colours_counter = Counter()  # type: typing.Counter[int]
+    colours_counter: typing.Counter[int] = Counter()
     for row in range(height):
         for col in range(width):
             r, g, b = img.getpixel((col, row))
@@ -47,7 +43,7 @@ def steganalyse(img):
         sorted(list(colours_counter.items()), key=lambda t: t[1])
     )
 
-    colours = 0  # type: float
+    colours: float = 0
     for colour in list(dict_colours.keys()):
         colours += colour
     colours = colours / len(dict_colours)

stegano/tools.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -28,7 +26,7 @@ __license__ = "GPLv3"
 import base64
 import itertools
 from functools import reduce
-from typing import IO, Iterator, List, Tuple, Union
+from typing import IO, List, Union
 
 from PIL import Image
 
@@ -76,9 +74,7 @@ def setlsb(component: int, bit: str) -> int:
     return component & ~1 | int(bit)
 
 
-def n_at_a_time(
-    items: List[int], n: int, fillvalue: str
-) -> Iterator[Tuple[Union[int, str]]]:
+def n_at_a_time(items: List[int], n: int, fillvalue: str):
     """Returns an iterator which groups n items at a time.
     Any final partial tuple will be padded with the fillvalue
 
@@ -134,7 +130,7 @@ class Hider:
 
         if image.mode not in ["RGB", "RGBA"]:
             if not auto_convert_rgb:
-                print("The mode of the image is not RGB. Mode is {}".format(image.mode))
+                print(f"The mode of the image is not RGB. Mode is {image.mode}")
                 answer = input("Convert the image to RGB ? [Y / n]\n") or "Y"
                 if answer.lower() == "n":
                     raise Exception("Not a RGB image.")
@@ -154,7 +150,7 @@ class Hider:
 
         if self._len_message_bits > npixels * 3:
             raise Exception(
-                "The message you want to hide is too long: {}".format(message_length)
+                f"The message you want to hide is too long: {message_length}"
             )
 
     def encode_another_pixel(self):
@@ -179,13 +175,19 @@ class Hider:
 
 
 class Revealer:
-    def __init__(self, encoded_image: Union[str, IO[bytes]], encoding: str = "UTF-8"):
+    def __init__(
+        self,
+        encoded_image: Union[str, IO[bytes]],
+        encoding: str = "UTF-8",
+        close_file: bool = True,
+    ):
         self.encoded_image = open_image(encoded_image)
         self._encoding_length = ENCODINGS[encoding]
         self._buff, self._count = 0, 0
         self._bitab: List[str] = []
         self._limit: Union[None, int] = None
         self.secret_message = ""
+        self.close_file = close_file
 
     def decode_pixel(self, coordinate: tuple):
         # pixel = [r, g, b] or [r,g,b,a]
@@ -212,7 +214,8 @@ class Revealer:
             self.secret_message = "".join(self._bitab)[
                 len(str(self._limit)) + 1 :  # noqa: E203
             ]
-            self.encoded_image.close()
+            if self.close_file:
+                self.encoded_image.close()
 
             return True
 

tests/test_exifHeader.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -25,9 +23,9 @@ __date__ = "$Date: 2016/05/17 $"
 __revision__ = "$Date: 2017/01/18 $"
 __license__ = "GPLv3"
 
+import io
 import os
 import unittest
-import io
 
 from stegano import exifHeader
 

tests/test_generators.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -25,8 +23,9 @@ __date__ = "$Date: 2017/03/01 $"
 __revision__ = "$Date: 2017/03/01 $"
 __license__ = "GPLv3"
 
-import unittest
 import itertools
+import unittest
+
 import cv2
 import numpy as np
 
@@ -71,7 +70,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_eratosthenes(self):
         """Test the Eratosthenes sieve."""
-        with open("./tests/expected-results/eratosthenes", "r") as f:
+        with open("./tests/expected-results/eratosthenes") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.eratosthenes(), 168)),
                 tuple(int(line) for line in f),
@@ -79,7 +78,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_composite(self):
         """Test the composite sieve."""
-        with open("./tests/expected-results/composite", "r") as f:
+        with open("./tests/expected-results/composite") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.composite(), 114)),
                 tuple(int(line) for line in f),
@@ -87,7 +86,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_fermat(self):
         """Test the Fermat generator."""
-        with open("./tests/expected-results/fermat", "r") as f:
+        with open("./tests/expected-results/fermat") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.fermat(), 9)),
                 tuple(int(line) for line in f),
@@ -95,7 +94,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_triangular_numbers(self):
         """Test the Triangular numbers generator."""
-        with open("./tests/expected-results/triangular_numbers", "r") as f:
+        with open("./tests/expected-results/triangular_numbers") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.triangular_numbers(), 54)),
                 tuple(int(line) for line in f),
@@ -103,7 +102,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_mersenne(self):
         """Test the Mersenne generator."""
-        with open("./tests/expected-results/mersenne", "r") as f:
+        with open("./tests/expected-results/mersenne") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.mersenne(), 20)),
                 tuple(int(line) for line in f),
@@ -111,7 +110,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_carmichael(self):
         """Test the Carmichael generator."""
-        with open("./tests/expected-results/carmichael", "r") as f:
+        with open("./tests/expected-results/carmichael") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.carmichael(), 33)),
                 tuple(int(line) for line in f),
@@ -119,7 +118,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_ackermann_slow(self):
         """Test the Ackermann set."""
-        with open("./tests/expected-results/ackermann", "r") as f:
+        with open("./tests/expected-results/ackermann") as f:
             self.assertEqual(generators.ackermann_slow(3, 1), int(f.readline()))
             self.assertEqual(generators.ackermann_slow(3, 2), int(f.readline()))
 
@@ -127,13 +126,13 @@ class TestGenerators(unittest.TestCase):
         """Test the Naive Ackermann generator"""
         gen = generators.ackermann_naive(3)
         next(gen)
-        with open("./tests/expected-results/ackermann", "r") as f:
+        with open("./tests/expected-results/ackermann") as f:
             self.assertEqual(next(gen), int(f.readline()))
             self.assertEqual(next(gen), int(f.readline()))
 
     def test_ackermann_fast(self):
         """Test the Ackermann set."""
-        with open("./tests/expected-results/ackermann", "r") as f:
+        with open("./tests/expected-results/ackermann") as f:
             self.assertEqual(generators.ackermann_fast(3, 1), int(f.readline()))
             self.assertEqual(generators.ackermann_fast(3, 2), int(f.readline()))
             self.assertEqual(generators.ackermann_fast(4, 1), int(f.readline()))
@@ -142,13 +141,13 @@ class TestGenerators(unittest.TestCase):
         """Test the Ackermann generator"""
         gen = generators.ackermann(3)
         next(gen)
-        with open("./tests/expected-results/ackermann", "r") as f:
+        with open("./tests/expected-results/ackermann") as f:
             self.assertEqual(next(gen), int(f.readline()))
             self.assertEqual(next(gen), int(f.readline()))
 
     def test_LFSR(self):
         """Test the LFSR generator"""
-        with open("./tests/expected-results/LFSR", "r") as f:
+        with open("./tests/expected-results/LFSR") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.LFSR(2**8), 256)),
                 tuple(int(line) for line in f),
@@ -175,9 +174,8 @@ class TestGenerators(unittest.TestCase):
         test_file_reshaped = test_file.reshape(
             int(test_file.shape[0]), int(test_file.shape[1])
         )
-        self.assertIsNone(
-            np.testing.assert_allclose(corners, test_file_reshaped, rtol=1e-0, atol=0)
-        )
+        res = np.testing.assert_allclose(corners, test_file_reshaped, rtol=1e-0, atol=0)  # type: ignore
+        self.assertIsNone(res)
 
     @staticmethod
     def shi_tomashi_reconfigure(

tests/test_lsb.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022  Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2024  Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -173,7 +171,12 @@ class TestLSB(unittest.TestCase):
     @patch("builtins.input", return_value="n")
     def test_refuse_convert_rgb(self, input):
         message_to_hide = "Hello World!"
-        with self.assertRaises(Exception):
+        # lsb.hide(
+        #         "./tests/sample-files/Lenna-grayscale.png",
+        #         message_to_hide,
+        #         generators.eratosthenes(),
+        #     )
+        with self.assertRaisesRegex(Exception, "Not a RGB image."):
             lsb.hide(
                 "./tests/sample-files/Lenna-grayscale.png",
                 message_to_hide,
@@ -210,7 +213,9 @@ class TestLSB(unittest.TestCase):
         with open("./tests/sample-files/lorem_ipsum.txt") as f:
             message = f.read()
         message += message * 2
-        with self.assertRaises(Exception):
+        with self.assertRaisesRegex(
+            Exception, "The message you want to hide is too long:"
+        ):
             lsb.hide("./tests/sample-files/Lenna.png", message, generators.identity())
 
     def test_hide_and_reveal_with_bad_generator(self):

tests/test_red.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

tests/test_steganalysis.py

@@ -1,10 +1,9 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
 # Stegano - Stegano is a pure Python steganography module.
 # Copyright (C) 2010-2017  Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -27,9 +26,10 @@ __license__ = "GPLv3"
 
 import unittest
 
+from PIL import Image, ImageChops
+
 from stegano import lsb
 from stegano.steganalysis import parity, statistics
-from PIL import Image, ImageChops
 
 
 class TestSteganalysis(unittest.TestCase):

tests/test_tools.py

@@ -1,10 +1,8 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://git.sr.ht/~cedric/stegano
+# For more information : https://github.com/cedricbonhomme/Stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -83,7 +81,7 @@ class TestTools(unittest.TestCase):
         self.assertEqual(list(result), [(1, 2), (3, 4), (5, "X")])
 
     def test_binary2base64(self):
-        with open("./tests/expected-results/binary2base64", "r") as f:
+        with open("./tests/expected-results/binary2base64") as f:
             expected_value = f.read()
         value = tools.binary2base64("tests/sample-files/free-software-song.ogg")
         self.assertEqual(expected_value, value)